target_timer_callback_t -> struct target_timer_callback
[openocd.git] / src / target / target.c
index 81d753e..fef7c29 100644 (file)
@@ -2,7 +2,7 @@
  *   Copyright (C) 2005 by Dominic Rath                                    *
  *   Dominic.Rath@gmx.de                                                   *
  *                                                                         *
- *   Copyright (C) 2007,2008 Øyvind Harboe                                 *
+ *   Copyright (C) 2007-2009 Øyvind Harboe                                 *
  *   oyvind.harboe@zylin.com                                               *
  *                                                                         *
  *   Copyright (C) 2008, Duane Ellis                                       *
 #include "jtag.h"
 
 
-static int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_test_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_bp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_virt2phys_command(command_context_t *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-static int handle_fast_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc);
-
-static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
-static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
-static int jim_target( Jim_Interp *interp, int argc, Jim_Obj *const *argv);
+static int jim_mcrmrc(Jim_Interp *interp, int argc, Jim_Obj *const *argv);
 
 static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv);
 static int target_mem2array(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv);
@@ -84,6 +57,7 @@ extern target_type_t arm966e_target;
 extern target_type_t arm926ejs_target;
 extern target_type_t fa526_target;
 extern target_type_t feroceon_target;
+extern target_type_t dragonite_target;
 extern target_type_t xscale_target;
 extern target_type_t cortexm3_target;
 extern target_type_t cortexa8_target;
@@ -101,6 +75,7 @@ target_type_t *target_types[] =
        &arm926ejs_target,
        &fa526_target,
        &feroceon_target,
+       &dragonite_target,
        &xscale_target,
        &cortexm3_target,
        &cortexa8_target,
@@ -111,8 +86,8 @@ target_type_t *target_types[] =
 };
 
 target_t *all_targets = NULL;
-target_event_callback_t *target_event_callbacks = NULL;
-target_timer_callback_t *target_timer_callbacks = NULL;
+struct target_event_callback *target_event_callbacks = NULL;
+struct target_timer_callback *target_timer_callbacks = NULL;
 
 const Jim_Nvp nvp_assert[] = {
        { .name = "assert", NVP_ASSERT },
@@ -139,12 +114,12 @@ const Jim_Nvp nvp_error_target[] = {
        { .value = -1, .name = NULL }
 };
 
-const char *target_strerror_safe( int err )
+const char *target_strerror_safe(int err)
 {
        const Jim_Nvp *n;
 
-       n = Jim_Nvp_value2name_simple( nvp_error_target, err );
-       if ( n->name == NULL ){
+       n = Jim_Nvp_value2name_simple(nvp_error_target, err);
+       if (n->name == NULL) {
                return "unknown";
        } else {
                return n->name;
@@ -155,7 +130,7 @@ static const Jim_Nvp nvp_target_event[] = {
        { .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" },
        { .value = TARGET_EVENT_OLD_pre_resume         , .name = "old-pre_resume" },
 
-       { .value = TARGET_EVENT_EARLY_HALTED, .name = "early-halted" },
+       { .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
        { .value = TARGET_EVENT_HALTED, .name = "halted" },
        { .value = TARGET_EVENT_RESUMED, .name = "resumed" },
        { .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
@@ -237,20 +212,16 @@ const Jim_Nvp nvp_reset_modes[] = {
        { .name = NULL     , .value = -1 },
 };
 
-static int max_target_number(void)
+const char *
+target_state_name( target_t *t )
 {
-       target_t *t;
-       int x;
-
-       x = -1;
-       t = all_targets;
-       while ( t ){
-               if ( x < t->target_number ){
-                       x = (t->target_number)+1;
-               }
-               t = t->next;
+       const char *cp;
+       cp = Jim_Nvp_value2name_simple(nvp_target_state, t->state)->name;
+       if( !cp ){
+               LOG_ERROR("Invalid target state: %d", (int)(t->state));
+               cp = "(*BUG*unknown*BUG*)";
        }
-       return x;
+       return cp;
 }
 
 /* determine the number of the new target */
@@ -262,17 +233,15 @@ static int new_target_number(void)
        /* number is 0 based */
        x = -1;
        t = all_targets;
-       while (t){
-               if ( x < t->target_number ){
+       while (t) {
+               if (x < t->target_number) {
                        x = t->target_number;
                }
                t = t->next;
        }
-       return x+1;
+       return x + 1;
 }
 
-static int target_continuous_poll = 1;
-
 /* read a uint32_t from a buffer in target memory endianness */
 uint32_t target_buffer_get_u32(target_t *target, const uint8_t *buffer)
 {
@@ -334,14 +303,19 @@ target_t *get_target(const char *id)
                        return target;
        }
 
+       /* It's OK to remove this fallback sometime after August 2010 or so */
+
        /* no match, try as number */
        unsigned num;
        if (parse_uint(id, &num) != ERROR_OK)
                return NULL;
 
        for (target = all_targets; target; target = target->next) {
-               if (target->target_number == (int)num)
+               if (target->target_number == (int)num) {
+                       LOG_WARNING("use '%s' as target identifier, not '%u'",
+                                       target->cmd_name, num);
                        return target;
+               }
        }
 
        return NULL;
@@ -352,8 +326,8 @@ static target_t *get_target_by_num(int num)
 {
        target_t *target = all_targets;
 
-       while (target){
-               if ( target->target_number == num ){
+       while (target) {
+               if (target->target_number == num) {
                        return target;
                }
                target = target->next;
@@ -362,11 +336,6 @@ static target_t *get_target_by_num(int num)
        return NULL;
 }
 
-int get_num_by_target(target_t *query_target)
-{
-       return query_target->target_number;
-}
-
 target_t* get_current_target(command_context_t *cmd_ctx)
 {
        target_t *target = get_target_by_num(cmd_ctx->current_target);
@@ -382,24 +351,57 @@ target_t* get_current_target(command_context_t *cmd_ctx)
 
 int target_poll(struct target_s *target)
 {
+       int retval;
+
        /* We can't poll until after examine */
        if (!target_was_examined(target))
        {
                /* Fail silently lest we pollute the log */
                return ERROR_FAIL;
        }
-       return target->type->poll(target);
+
+       retval = target->type->poll(target);
+       if (retval != ERROR_OK)
+               return retval;
+
+       if (target->halt_issued)
+       {
+               if (target->state == TARGET_HALTED)
+               {
+                       target->halt_issued = false;
+               } else
+               {
+                       long long t = timeval_ms() - target->halt_issued_time;
+                       if (t>1000)
+                       {
+                               target->halt_issued = false;
+                               LOG_INFO("Halt timed out, wake up GDB.");
+                               target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
+                       }
+               }
+       }
+
+       return ERROR_OK;
 }
 
 int target_halt(struct target_s *target)
 {
+       int retval;
        /* We can't poll until after examine */
        if (!target_was_examined(target))
        {
                LOG_ERROR("Target not examined yet");
                return ERROR_FAIL;
        }
-       return target->type->halt(target);
+
+       retval = target->type->halt(target);
+       if (retval != ERROR_OK)
+               return retval;
+
+       target->halt_issued = true;
+       target->halt_issued_time = timeval_ms();
+
+       return ERROR_OK;
 }
 
 int target_resume(struct target_s *target, int current, uint32_t address, int handle_breakpoints, int debug_execution)
@@ -428,8 +430,8 @@ int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mo
        char buf[100];
        int retval;
        Jim_Nvp *n;
-       n = Jim_Nvp_value2name_simple( nvp_reset_modes, reset_mode );
-       if ( n->name == NULL ){
+       n = Jim_Nvp_value2name_simple(nvp_reset_modes, reset_mode);
+       if (n->name == NULL) {
                LOG_ERROR("invalid reset mode");
                return ERROR_FAIL;
        }
@@ -438,13 +440,14 @@ int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mo
         * more predictable, i.e. dr/irscan & pathmove in events will
         * not have JTAG operations injected into the middle of a sequence.
         */
-       int save_poll = target_continuous_poll;
-       target_continuous_poll = 0;
+       bool save_poll = jtag_poll_get_enabled();
+
+       jtag_poll_set_enabled(false);
 
-       sprintf( buf, "ocd_process_reset %s", n->name );
-       retval = Jim_Eval( interp, buf );
+       sprintf(buf, "ocd_process_reset %s", n->name);
+       retval = Jim_Eval(interp, buf);
 
-       target_continuous_poll = save_poll;
+       jtag_poll_set_enabled(save_poll);
 
        if (retval != JIM_OK) {
                Jim_PrintErrorMessage(interp);
@@ -457,13 +460,14 @@ int target_process_reset(struct command_context_s *cmd_ctx, enum target_reset_mo
        return retval;
 }
 
-static int default_virt2phys(struct target_s *target, uint32_t virtual, uint32_t *physical)
+static int identity_virt2phys(struct target_s *target,
+               uint32_t virtual, uint32_t *physical)
 {
        *physical = virtual;
        return ERROR_OK;
 }
 
-static int default_mmu(struct target_s *target, int *enabled)
+static int no_mmu(struct target_s *target, int *enabled)
 {
        *enabled = 0;
        return ERROR_OK;
@@ -492,7 +496,7 @@ static int jtag_enable_callback(enum jtag_event event, void *priv)
 }
 
 
-/* Targets that correctly implement init+examine, i.e.
+/* Targets that correctly implement init + examine, i.e.
  * no communication with target during init:
  *
  * XScale
@@ -547,10 +551,15 @@ static int target_soft_reset_halt_imp(struct target_s *target)
                LOG_ERROR("Target not examined yet");
                return ERROR_FAIL;
        }
+       if (!target->type->soft_reset_halt_imp) {
+               LOG_ERROR("Target %s does not support soft_reset_halt",
+                               target->cmd_name);
+               return ERROR_FAIL;
+       }
        return target->type->soft_reset_halt_imp(target);
 }
 
-static int target_run_algorithm_imp(struct target_s *target, int num_mem_params, mem_param_t *mem_params, int num_reg_params, reg_param_t *reg_param, uint32_t entry_point, uint32_t exit_point, int timeout_ms, void *arch_info)
+static int target_run_algorithm_imp(struct target_s *target, int num_mem_params, struct mem_param *mem_params, int num_reg_params, struct reg_param *reg_param, uint32_t entry_point, uint32_t exit_point, int timeout_ms, void *arch_info)
 {
        if (!target_was_examined(target))
        {
@@ -566,11 +575,24 @@ int target_read_memory(struct target_s *target,
        return target->type->read_memory(target, address, size, count, buffer);
 }
 
+int target_read_phys_memory(struct target_s *target,
+               uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+{
+       return target->type->read_phys_memory(target, address, size, count, buffer);
+}
+
 int target_write_memory(struct target_s *target,
                uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
 {
        return target->type->write_memory(target, address, size, count, buffer);
 }
+
+int target_write_phys_memory(struct target_s *target,
+               uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer)
+{
+       return target->type->write_phys_memory(target, address, size, count, buffer);
+}
+
 int target_bulk_write_memory(struct target_s *target,
                uint32_t address, uint32_t count, uint8_t *buffer)
 {
@@ -589,12 +611,12 @@ int target_remove_breakpoint(struct target_s *target,
 }
 
 int target_add_watchpoint(struct target_s *target,
-               struct watchpoint_s *watchpoint)
+               struct watchpoint *watchpoint)
 {
        return target->type->add_watchpoint(target, watchpoint);
 }
 int target_remove_watchpoint(struct target_s *target,
-               struct watchpoint_s *watchpoint)
+               struct watchpoint *watchpoint)
 {
        return target->type->remove_watchpoint(target, watchpoint);
 }
@@ -612,8 +634,8 @@ int target_step(struct target_s *target,
 
 
 int target_run_algorithm(struct target_s *target,
-               int num_mem_params, mem_param_t *mem_params,
-               int num_reg_params, reg_param_t *reg_param,
+               int num_mem_params, struct mem_param *mem_params,
+               int num_reg_params, struct reg_param *reg_param,
                uint32_t entry_point, uint32_t exit_point,
                int timeout_ms, void *arch_info)
 {
@@ -639,13 +661,107 @@ void target_reset_examined(struct target_s *target)
 }
 
 
+
+static int default_mrc(struct target_s *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t *value)
+{
+       LOG_ERROR("Not implemented: %s", __func__);
+       return ERROR_FAIL;
+}
+
+static int default_mcr(struct target_s *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t value)
+{
+       LOG_ERROR("Not implemented: %s", __func__);
+       return ERROR_FAIL;
+}
+
+static int arm_cp_check(struct target_s *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm)
+{
+       /* basic check */
+       if (!target_was_examined(target))
+       {
+               LOG_ERROR("Target not examined yet");
+               return ERROR_FAIL;
+       }
+
+       if ((cpnum <0) || (cpnum > 15))
+       {
+               LOG_ERROR("Illegal co-processor %d", cpnum);
+               return ERROR_FAIL;
+       }
+
+       if (op1 > 7)
+       {
+               LOG_ERROR("Illegal op1");
+               return ERROR_FAIL;
+       }
+
+       if (op2 > 7)
+       {
+               LOG_ERROR("Illegal op2");
+               return ERROR_FAIL;
+       }
+
+       if (CRn > 15)
+       {
+               LOG_ERROR("Illegal CRn");
+               return ERROR_FAIL;
+       }
+
+       if (CRm > 15)
+       {
+               LOG_ERROR("Illegal CRm");
+               return ERROR_FAIL;
+       }
+
+       return ERROR_OK;
+}
+
+int target_mrc(struct target_s *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t *value)
+{
+       int retval;
+
+       retval = arm_cp_check(target, cpnum, op1, op2, CRn, CRm);
+       if (retval != ERROR_OK)
+               return retval;
+
+       return target->type->mrc(target, cpnum, op1, op2, CRn, CRm, value);
+}
+
+int target_mcr(struct target_s *target, int cpnum, uint32_t op1, uint32_t op2, uint32_t CRn, uint32_t CRm, uint32_t value)
+{
+       int retval;
+
+       retval = arm_cp_check(target, cpnum, op1, op2, CRn, CRm);
+       if (retval != ERROR_OK)
+               return retval;
+
+       return target->type->mcr(target, cpnum, op1, op2, CRn, CRm, value);
+}
+
+static int
+err_read_phys_memory(struct target_s *target, uint32_t address,
+               uint32_t size, uint32_t count, uint8_t *buffer)
+{
+       LOG_ERROR("Not implemented: %s", __func__);
+       return ERROR_FAIL;
+}
+
+static int
+err_write_phys_memory(struct target_s *target, uint32_t address,
+               uint32_t size, uint32_t count, uint8_t *buffer)
+{
+       LOG_ERROR("Not implemented: %s", __func__);
+       return ERROR_FAIL;
+}
+
 int target_init(struct command_context_s *cmd_ctx)
 {
-       target_t *target = all_targets;
+       struct target_s *target;
        int retval;
 
-       while (target)
-       {
+       for (target = all_targets; target; target = target->next) {
+               struct target_type_s *type = target->type;
+
                target_reset_examined(target);
                if (target->type->examine == NULL)
                {
@@ -658,12 +774,38 @@ int target_init(struct command_context_s *cmd_ctx)
                        return retval;
                }
 
-               /* Set up default functions if none are provided by target */
-               if (target->type->virt2phys == NULL)
+               /**
+                * @todo MCR/MRC are ARM-specific; don't require them in
+                * all targets, or for ARMs without coprocessors.
+                */
+               if (target->type->mcr == NULL)
+               {
+                       target->type->mcr = default_mcr;
+               } else
+               {
+                       /* FIX! multiple targets will generally register global commands
+                        * multiple times. Only register this one if *one* of the
+                        * targets need the command. Hmm... make it a command on the
+                        * Jim Tcl target object?
+                        */
+                       register_jim(cmd_ctx, "mcr", jim_mcrmrc, "write coprocessor <cpnum> <op1> <op2> <CRn> <CRm> <value>");
+               }
+
+               if (target->type->mrc == NULL)
                {
-                       target->type->virt2phys = default_virt2phys;
+                       target->type->mrc = default_mrc;
+               } else
+               {
+                       register_jim(cmd_ctx, "mrc", jim_mcrmrc, "read coprocessor <cpnum> <op1> <op2> <CRn> <CRm>");
                }
-               target->type->virt2phys = default_virt2phys;
+
+
+               /**
+                * @todo get rid of those *memory_imp() methods, now that all
+                * callers are using target_*_memory() accessors ... and make
+                * sure the "physical" paths handle the same issues.
+                */
+
                /* a non-invasive way(in terms of patches) to add some code that
                 * runs before the type->write/read_memory implementation
                 */
@@ -676,11 +818,45 @@ int target_init(struct command_context_s *cmd_ctx)
                target->type->run_algorithm_imp = target->type->run_algorithm;
                target->type->run_algorithm = target_run_algorithm_imp;
 
-               if (target->type->mmu == NULL)
-               {
-                       target->type->mmu = default_mmu;
+               /* Sanity-check MMU support ... stub in what we must, to help
+                * implement it in stages, but warn if we need to do so.
+                */
+               if (type->mmu) {
+                       if (type->write_phys_memory == NULL) {
+                               LOG_ERROR("type '%s' is missing %s",
+                                               type->name,
+                                               "write_phys_memory");
+                               type->write_phys_memory = err_write_phys_memory;
+                       }
+                       if (type->read_phys_memory == NULL) {
+                               LOG_ERROR("type '%s' is missing %s",
+                                               type->name,
+                                               "read_phys_memory");
+                               type->read_phys_memory = err_read_phys_memory;
+                       }
+                       if (type->virt2phys == NULL) {
+                               LOG_ERROR("type '%s' is missing %s",
+                                               type->name,
+                                               "virt2phys");
+                               type->virt2phys = identity_virt2phys;
+                       }
+
+               /* Make sure no-MMU targets all behave the same:  make no
+                * distinction between physical and virtual addresses, and
+                * ensure that virt2phys() is always an identity mapping.
+                */
+               } else {
+                       if (type->write_phys_memory
+                                       || type->read_phys_memory
+                                       || type->virt2phys)
+                               LOG_WARNING("type '%s' has broken MMU hooks",
+                                               type->name);
+
+                       type->mmu = no_mmu;
+                       type->write_phys_memory = type->write_memory;
+                       type->read_phys_memory = type->read_memory;
+                       type->virt2phys = identity_virt2phys;
                }
-               target = target->next;
        }
 
        if (all_targets)
@@ -696,7 +872,7 @@ int target_init(struct command_context_s *cmd_ctx)
 
 int target_register_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 {
-       target_event_callback_t **callbacks_p = &target_event_callbacks;
+       struct target_event_callback **callbacks_p = &target_event_callbacks;
 
        if (callback == NULL)
        {
@@ -710,7 +886,7 @@ int target_register_event_callback(int (*callback)(struct target_s *target, enum
                callbacks_p = &((*callbacks_p)->next);
        }
 
-       (*callbacks_p) = malloc(sizeof(target_event_callback_t));
+       (*callbacks_p) = malloc(sizeof(struct target_event_callback));
        (*callbacks_p)->callback = callback;
        (*callbacks_p)->priv = priv;
        (*callbacks_p)->next = NULL;
@@ -720,7 +896,7 @@ int target_register_event_callback(int (*callback)(struct target_s *target, enum
 
 int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int periodic, void *priv)
 {
-       target_timer_callback_t **callbacks_p = &target_timer_callbacks;
+       struct target_timer_callback **callbacks_p = &target_timer_callbacks;
        struct timeval now;
 
        if (callback == NULL)
@@ -735,7 +911,7 @@ int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int
                callbacks_p = &((*callbacks_p)->next);
        }
 
-       (*callbacks_p) = malloc(sizeof(target_timer_callback_t));
+       (*callbacks_p) = malloc(sizeof(struct target_timer_callback));
        (*callbacks_p)->callback = callback;
        (*callbacks_p)->periodic = periodic;
        (*callbacks_p)->time_ms = time_ms;
@@ -758,8 +934,8 @@ int target_register_timer_callback(int (*callback)(void *priv), int time_ms, int
 
 int target_unregister_event_callback(int (*callback)(struct target_s *target, enum target_event event, void *priv), void *priv)
 {
-       target_event_callback_t **p = &target_event_callbacks;
-       target_event_callback_t *c = target_event_callbacks;
+       struct target_event_callback **p = &target_event_callbacks;
+       struct target_event_callback *c = target_event_callbacks;
 
        if (callback == NULL)
        {
@@ -768,7 +944,7 @@ int target_unregister_event_callback(int (*callback)(struct target_s *target, en
 
        while (c)
        {
-               target_event_callback_t *next = c->next;
+               struct target_event_callback *next = c->next;
                if ((c->callback == callback) && (c->priv == priv))
                {
                        *p = next;
@@ -785,8 +961,8 @@ int target_unregister_event_callback(int (*callback)(struct target_s *target, en
 
 int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 {
-       target_timer_callback_t **p = &target_timer_callbacks;
-       target_timer_callback_t *c = target_timer_callbacks;
+       struct target_timer_callback **p = &target_timer_callbacks;
+       struct target_timer_callback *c = target_timer_callbacks;
 
        if (callback == NULL)
        {
@@ -795,7 +971,7 @@ int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 
        while (c)
        {
-               target_timer_callback_t *next = c->next;
+               struct target_timer_callback *next = c->next;
                if ((c->callback == callback) && (c->priv == priv))
                {
                        *p = next;
@@ -812,20 +988,20 @@ int target_unregister_timer_callback(int (*callback)(void *priv), void *priv)
 
 int target_call_event_callbacks(target_t *target, enum target_event event)
 {
-       target_event_callback_t *callback = target_event_callbacks;
-       target_event_callback_t *next_callback;
+       struct target_event_callback *callback = target_event_callbacks;
+       struct target_event_callback *next_callback;
 
        if (event == TARGET_EVENT_HALTED)
        {
                /* execute early halted first */
-               target_call_event_callbacks(target, TARGET_EVENT_EARLY_HALTED);
+               target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
        }
 
        LOG_DEBUG("target event %i (%s)",
                          event,
-                         Jim_Nvp_value2name_simple( nvp_target_event, event )->name );
+                         Jim_Nvp_value2name_simple(nvp_target_event, event)->name);
 
-       target_handle_event( target, event );
+       target_handle_event(target, event);
 
        while (callback)
        {
@@ -838,7 +1014,7 @@ int target_call_event_callbacks(target_t *target, enum target_event event)
 }
 
 static int target_timer_callback_periodic_restart(
-               target_timer_callback_t *cb, struct timeval *now)
+               struct target_timer_callback *cb, struct timeval *now)
 {
        int time_ms = cb->time_ms;
        cb->when.tv_usec = now->tv_usec + (time_ms % 1000) * 1000;
@@ -852,7 +1028,7 @@ static int target_timer_callback_periodic_restart(
        return ERROR_OK;
 }
 
-static int target_call_timer_callback(target_timer_callback_t *cb,
+static int target_call_timer_callback(struct target_timer_callback *cb,
                struct timeval *now)
 {
        cb->callback(cb->priv);
@@ -870,11 +1046,11 @@ static int target_call_timer_callbacks_check_time(int checktime)
        struct timeval now;
        gettimeofday(&now, NULL);
 
-       target_timer_callback_t *callback = target_timer_callbacks;
+       struct target_timer_callback *callback = target_timer_callbacks;
        while (callback)
        {
                // cleaning up may unregister and free this callback
-               target_timer_callback_t *next_callback = callback->next;
+               struct target_timer_callback *next_callback = callback->next;
 
                bool call_it = callback->callback &&
                        ((!checktime && callback->periodic) ||
@@ -906,28 +1082,45 @@ int target_call_timer_callbacks_now(void)
        return target_call_timer_callbacks_check_time(0);
 }
 
-int target_alloc_working_area(struct target_s *target, uint32_t size, working_area_t **area)
+int target_alloc_working_area(struct target_s *target, uint32_t size, struct working_area **area)
 {
-       working_area_t *c = target->working_areas;
-       working_area_t *new_wa = NULL;
+       struct working_area *c = target->working_areas;
+       struct working_area *new_wa = NULL;
 
        /* Reevaluate working area address based on MMU state*/
        if (target->working_areas == NULL)
        {
                int retval;
                int enabled;
+
                retval = target->type->mmu(target, &enabled);
                if (retval != ERROR_OK)
                {
                        return retval;
                }
-               if (enabled)
-               {
-                       target->working_area = target->working_area_virt;
-               }
-               else
-               {
-                       target->working_area = target->working_area_phys;
+
+               if (!enabled) {
+                       if (target->working_area_phys_spec) {
+                               LOG_DEBUG("MMU disabled, using physical "
+                                       "address for working memory 0x%08x",
+                                       (unsigned)target->working_area_phys);
+                               target->working_area = target->working_area_phys;
+                       } else {
+                               LOG_ERROR("No working memory available. "
+                                       "Specify -work-area-phys to target.");
+                               return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+                       }
+               } else {
+                       if (target->working_area_virt_spec) {
+                               LOG_DEBUG("MMU enabled, using virtual "
+                                       "address for working memory 0x%08x",
+                                       (unsigned)target->working_area_virt);
+                               target->working_area = target->working_area_virt;
+                       } else {
+                               LOG_ERROR("No working memory available. "
+                                       "Specify -work-area-virt to target.");
+                               return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
+                       }
                }
        }
 
@@ -952,12 +1145,10 @@ int target_alloc_working_area(struct target_s *target, uint32_t size, working_ar
        /* if not, allocate a new one */
        if (!new_wa)
        {
-               working_area_t **p = &target->working_areas;
+               struct working_area **p = &target->working_areas;
                uint32_t first_free = target->working_area;
                uint32_t free_size = target->working_area_size;
 
-               LOG_DEBUG("allocating new working area");
-
                c = target->working_areas;
                while (c)
                {
@@ -969,12 +1160,14 @@ int target_alloc_working_area(struct target_s *target, uint32_t size, working_ar
 
                if (free_size < size)
                {
-                       LOG_WARNING("not enough working area available(requested %u, free %u)", 
+                       LOG_WARNING("not enough working area available(requested %u, free %u)",
                                    (unsigned)(size), (unsigned)(free_size));
                        return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
                }
 
-               new_wa = malloc(sizeof(working_area_t));
+               LOG_DEBUG("allocated new working area at address 0x%08x", (unsigned)first_free);
+
+               new_wa = malloc(sizeof(struct working_area));
                new_wa->next = NULL;
                new_wa->size = size;
                new_wa->address = first_free;
@@ -1009,7 +1202,7 @@ int target_alloc_working_area(struct target_s *target, uint32_t size, working_ar
        return ERROR_OK;
 }
 
-int target_free_working_area_restore(struct target_s *target, working_area_t *area, int restore)
+int target_free_working_area_restore(struct target_s *target, struct working_area *area, int restore)
 {
        if (area->free)
                return ERROR_OK;
@@ -1030,7 +1223,7 @@ int target_free_working_area_restore(struct target_s *target, working_area_t *ar
        return ERROR_OK;
 }
 
-int target_free_working_area(struct target_s *target, working_area_t *area)
+int target_free_working_area(struct target_s *target, struct working_area *area)
 {
        return target_free_working_area_restore(target, area, 1);
 }
@@ -1040,11 +1233,11 @@ int target_free_working_area(struct target_s *target, working_area_t *area)
  */
 void target_free_all_working_areas_restore(struct target_s *target, int restore)
 {
-       working_area_t *c = target->working_areas;
+       struct working_area *c = target->working_areas;
 
        while (c)
        {
-               working_area_t *next = c->next;
+               struct working_area *next = c->next;
                target_free_working_area_restore(target, c, restore);
 
                if (c->backup)
@@ -1063,19 +1256,6 @@ void target_free_all_working_areas(struct target_s *target)
        target_free_all_working_areas_restore(target, 1);
 }
 
-int target_register_commands(struct command_context_s *cmd_ctx)
-{
-
-       register_command(cmd_ctx, NULL, "targets", handle_targets_command, COMMAND_EXEC, "change the current command line target (one parameter) or lists targets (with no parameter)");
-
-
-
-
-       register_jim(cmd_ctx, "target", jim_target, "configure target" );
-
-       return ERROR_OK;
-}
-
 int target_arch_state(struct target_s *target)
 {
        int retval;
@@ -1085,13 +1265,12 @@ int target_arch_state(struct target_s *target)
                return ERROR_OK;
        }
 
-       LOG_USER("target state: %s",
-                Jim_Nvp_value2name_simple(nvp_target_state,target->state)->name);
+       LOG_USER("target state: %s", target_state_name( target ));
 
        if (target->state != TARGET_HALTED)
                return ERROR_OK;
 
-       retval=target->type->arch_state(target);
+       retval = target->type->arch_state(target);
        return retval;
 }
 
@@ -1102,7 +1281,7 @@ int target_arch_state(struct target_s *target)
 int target_write_buffer(struct target_s *target, uint32_t address, uint32_t size, uint8_t *buffer)
 {
        int retval;
-       LOG_DEBUG("writing buffer of %i byte at 0x%8.8x", 
+       LOG_DEBUG("writing buffer of %i byte at 0x%8.8x",
                  (int)size, (unsigned)address);
 
        if (!target_was_examined(target))
@@ -1118,8 +1297,8 @@ int target_write_buffer(struct target_s *target, uint32_t address, uint32_t size
        if ((address + size - 1) < address)
        {
                /* GDB can request this when e.g. PC is 0xfffffffc*/
-               LOG_ERROR("address+size wrapped(0x%08x, 0x%08x)", 
-                                 (unsigned)address, 
+               LOG_ERROR("address + size wrapped(0x%08x, 0x%08x)",
+                                 (unsigned)address,
                                  (unsigned)size);
                return ERROR_FAIL;
        }
@@ -1184,7 +1363,7 @@ int target_write_buffer(struct target_s *target, uint32_t address, uint32_t size
 int target_read_buffer(struct target_s *target, uint32_t address, uint32_t size, uint8_t *buffer)
 {
        int retval;
-       LOG_DEBUG("reading buffer of %i byte at 0x%8.8x", 
+       LOG_DEBUG("reading buffer of %i byte at 0x%8.8x",
                          (int)size, (unsigned)address);
 
        if (!target_was_examined(target))
@@ -1200,8 +1379,8 @@ int target_read_buffer(struct target_s *target, uint32_t address, uint32_t size,
        if ((address + size - 1) < address)
        {
                /* GDB can request this when e.g. PC is 0xfffffffc*/
-               LOG_ERROR("address+size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")", 
-                                 address, 
+               LOG_ERROR("address + size wrapped(0x%08" PRIx32 ", 0x%08" PRIx32 ")",
+                                 address,
                                  size);
                return ERROR_FAIL;
        }
@@ -1240,6 +1419,18 @@ int target_read_buffer(struct target_s *target, uint32_t address, uint32_t size,
                size -= aligned;
        }
 
+       /*prevent byte access when possible (avoid AHB access limitations in some cases)*/
+       if(size >=2)
+       {
+               int aligned = size - (size%2);
+               retval = target_read_memory(target, address, 2, aligned / 2, buffer);
+               if (retval != ERROR_OK)
+                       return retval;
+
+               buffer += aligned;
+               address += aligned;
+               size -= aligned;
+       }
        /* handle tail writes of less than 4 bytes */
        if (size > 0)
        {
@@ -1286,7 +1477,7 @@ int target_checksum_memory(struct target_s *target, uint32_t address, uint32_t s
                        target_buffer_set_u32(target, &buffer[i*sizeof(uint32_t)], target_data);
                }
 
-               retval = image_calculate_checksum( buffer, size, &checksum );
+               retval = image_calculate_checksum(buffer, size, &checksum);
                free(buffer);
        }
 
@@ -1326,14 +1517,14 @@ int target_read_u32(struct target_s *target, uint32_t address, uint32_t *value)
        if (retval == ERROR_OK)
        {
                *value = target_buffer_get_u32(target, value_buf);
-               LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "", 
-                                 address, 
+               LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
+                                 address,
                                  *value);
        }
        else
        {
                *value = 0x0;
-               LOG_DEBUG("address: 0x%8.8" PRIx32 " failed", 
+               LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
                                  address);
        }
 
@@ -1354,14 +1545,14 @@ int target_read_u16(struct target_s *target, uint32_t address, uint16_t *value)
        if (retval == ERROR_OK)
        {
                *value = target_buffer_get_u16(target, value_buf);
-               LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x", 
-                                 address, 
+               LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%4.4x",
+                                 address,
                                  *value);
        }
        else
        {
                *value = 0x0;
-               LOG_DEBUG("address: 0x%8.8" PRIx32 " failed", 
+               LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
                                  address);
        }
 
@@ -1379,14 +1570,14 @@ int target_read_u8(struct target_s *target, uint32_t address, uint8_t *value)
 
        if (retval == ERROR_OK)
        {
-               LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x", 
-                                 address, 
+               LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
+                                 address,
                                  *value);
        }
        else
        {
                *value = 0x0;
-               LOG_DEBUG("address: 0x%8.8" PRIx32 " failed", 
+               LOG_DEBUG("address: 0x%8.8" PRIx32 " failed",
                                  address);
        }
 
@@ -1403,8 +1594,8 @@ int target_write_u32(struct target_s *target, uint32_t address, uint32_t value)
                return ERROR_FAIL;
        }
 
-       LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "", 
-                         address, 
+       LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8" PRIx32 "",
+                         address,
                          value);
 
        target_buffer_set_u32(target, value_buf, value);
@@ -1426,8 +1617,8 @@ int target_write_u16(struct target_s *target, uint32_t address, uint16_t value)
                return ERROR_FAIL;
        }
 
-       LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x", 
-                         address, 
+       LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%8.8x",
+                         address,
                          value);
 
        target_buffer_set_u16(target, value_buf, value);
@@ -1448,7 +1639,7 @@ int target_write_u8(struct target_s *target, uint32_t address, uint8_t value)
                return ERROR_FAIL;
        }
 
-       LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x", 
+       LOG_DEBUG("address: 0x%8.8" PRIx32 ", value: 0x%2.2x",
                          address, value);
 
        if ((retval = target_write_memory(target, address, 1, 1, &value)) != ERROR_OK)
@@ -1459,60 +1650,7 @@ int target_write_u8(struct target_s *target, uint32_t address, uint8_t value)
        return retval;
 }
 
-int target_register_user_commands(struct command_context_s *cmd_ctx)
-{
-       int retval = ERROR_OK;
-
-
-       /* script procedures */
-       register_command(cmd_ctx, NULL, "profile", handle_profile_command, COMMAND_EXEC, "profiling samples the CPU PC");
-       register_jim(cmd_ctx, "ocd_mem2array", jim_mem2array, "read memory and return as a TCL array for script processing <ARRAYNAME> <WIDTH=32/16/8> <ADDRESS> <COUNT>");
-       register_jim(cmd_ctx, "ocd_array2mem", jim_array2mem, "convert a TCL array to memory locations and write the values  <ARRAYNAME> <WIDTH=32/16/8> <ADDRESS> <COUNT>");
-
-       register_command(cmd_ctx, NULL, "fast_load_image", handle_fast_load_image_command, COMMAND_ANY,
-                       "same args as load_image, image stored in memory - mainly for profiling purposes");
-
-       register_command(cmd_ctx, NULL, "fast_load", handle_fast_load_command, COMMAND_ANY,
-                       "loads active fast load image to current target - mainly for profiling purposes");
-
-
-       register_command(cmd_ctx, NULL, "virt2phys", handle_virt2phys_command, COMMAND_ANY, "translate a virtual address into a physical address");
-       register_command(cmd_ctx,  NULL, "reg", handle_reg_command, COMMAND_EXEC, "display or set a register");
-       register_command(cmd_ctx,  NULL, "poll", handle_poll_command, COMMAND_EXEC, "poll target state");
-       register_command(cmd_ctx,  NULL, "wait_halt", handle_wait_halt_command, COMMAND_EXEC, "wait for target halt [time (s)]");
-       register_command(cmd_ctx,  NULL, "halt", handle_halt_command, COMMAND_EXEC, "halt target");
-       register_command(cmd_ctx,  NULL, "resume", handle_resume_command, COMMAND_EXEC, "resume target [addr]");
-       register_command(cmd_ctx,  NULL, "step", handle_step_command, COMMAND_EXEC, "step one instruction from current PC or [addr]");
-       register_command(cmd_ctx,  NULL, "reset", handle_reset_command, COMMAND_EXEC, "reset target [run|halt|init] - default is run");
-       register_command(cmd_ctx,  NULL, "soft_reset_halt", handle_soft_reset_halt_command, COMMAND_EXEC, "halt the target and do a soft reset");
-
-       register_command(cmd_ctx,  NULL, "mdw", handle_md_command, COMMAND_EXEC, "display memory words <addr> [count]");
-       register_command(cmd_ctx,  NULL, "mdh", handle_md_command, COMMAND_EXEC, "display memory half-words <addr> [count]");
-       register_command(cmd_ctx,  NULL, "mdb", handle_md_command, COMMAND_EXEC, "display memory bytes <addr> [count]");
-
-       register_command(cmd_ctx,  NULL, "mww", handle_mw_command, COMMAND_EXEC, "write memory word <addr> <value> [count]");
-       register_command(cmd_ctx,  NULL, "mwh", handle_mw_command, COMMAND_EXEC, "write memory half-word <addr> <value> [count]");
-       register_command(cmd_ctx,  NULL, "mwb", handle_mw_command, COMMAND_EXEC, "write memory byte <addr> <value> [count]");
-
-       register_command(cmd_ctx,  NULL, "bp", handle_bp_command, COMMAND_EXEC, "set breakpoint <address> <length> [hw]");
-       register_command(cmd_ctx,  NULL, "rbp", handle_rbp_command, COMMAND_EXEC, "remove breakpoint <adress>");
-       register_command(cmd_ctx,  NULL, "wp", handle_wp_command, COMMAND_EXEC, "set watchpoint <address> <length> <r/w/a> [value] [mask]");
-       register_command(cmd_ctx,  NULL, "rwp", handle_rwp_command, COMMAND_EXEC, "remove watchpoint <adress>");
-
-       register_command(cmd_ctx,  NULL, "load_image", handle_load_image_command, COMMAND_EXEC, "load_image <file> <address> ['bin'|'ihex'|'elf'|'s19'] [min_address] [max_length]");
-       register_command(cmd_ctx,  NULL, "dump_image", handle_dump_image_command, COMMAND_EXEC, "dump_image <file> <address> <size>");
-       register_command(cmd_ctx,  NULL, "verify_image", handle_verify_image_command, COMMAND_EXEC, "verify_image <file> [offset] [type]");
-       register_command(cmd_ctx,  NULL, "test_image", handle_test_image_command, COMMAND_EXEC, "test_image <file> [offset] [type]");
-
-       if ((retval = target_request_register_commands(cmd_ctx)) != ERROR_OK)
-               return retval;
-       if ((retval = trace_register_commands(cmd_ctx)) != ERROR_OK)
-               return retval;
-
-       return retval;
-}
-
-static int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_targets_command)
 {
        target_t *target = all_targets;
 
@@ -1520,7 +1658,7 @@ static int handle_targets_command(struct command_context_s *cmd_ctx, char *cmd,
        {
                target = get_target(args[0]);
                if (target == NULL) {
-                       command_print(cmd_ctx,"Target: %s is unknown, try one of:\n", args[0] );
+                       command_print(cmd_ctx,"Target: %s is unknown, try one of:\n", args[0]);
                        goto DumpTargets;
                }
                if (!target->tap->enabled) {
@@ -1544,8 +1682,7 @@ DumpTargets:
                char marker = ' ';
 
                if (target->tap->enabled)
-                       state = Jim_Nvp_value2name_simple(nvp_target_state,
-                                       target->state)->name;
+                       state = target_state_name( target );
                else
                        state = "tap-disabled";
 
@@ -1584,7 +1721,7 @@ static int sense_handler(void)
        static int prevPowerdropout = 0;
 
        int retval;
-       if ((retval=jtag_power_dropout(&powerDropout)) != ERROR_OK)
+       if ((retval = jtag_power_dropout(&powerDropout)) != ERROR_OK)
                return retval;
 
        int powerRestored;
@@ -1603,7 +1740,7 @@ static int sense_handler(void)
                lastPower = current;
        }
 
-       if ((retval=jtag_srst_asserted(&srstAsserted)) != ERROR_OK)
+       if ((retval = jtag_srst_asserted(&srstAsserted)) != ERROR_OK)
                return retval;
 
        int srstDeasserted;
@@ -1636,6 +1773,15 @@ static int sense_handler(void)
        return ERROR_OK;
 }
 
+static void target_call_event_callbacks_all(enum target_event e) {
+       target_t *target;
+       target = all_targets;
+       while (target) {
+               target_call_event_callbacks(target, e);
+               target = target->next;
+       }
+}
+
 /* process target state changes */
 int handle_target(void *priv)
 {
@@ -1654,22 +1800,24 @@ int handle_target(void *priv)
                int did_something = 0;
                if (runSrstAsserted)
                {
-                       Jim_Eval( interp, "srst_asserted");
+                       target_call_event_callbacks_all(TARGET_EVENT_GDB_HALT);
+                       Jim_Eval(interp, "srst_asserted");
                        did_something = 1;
                }
                if (runSrstDeasserted)
                {
-                       Jim_Eval( interp, "srst_deasserted");
+                       Jim_Eval(interp, "srst_deasserted");
                        did_something = 1;
                }
                if (runPowerDropout)
                {
-                       Jim_Eval( interp, "power_dropout");
+                       target_call_event_callbacks_all(TARGET_EVENT_GDB_HALT);
+                       Jim_Eval(interp, "power_dropout");
                        did_something = 1;
                }
                if (runPowerRestore)
                {
-                       Jim_Eval( interp, "power_restore");
+                       Jim_Eval(interp, "power_restore");
                        did_something = 1;
                }
 
@@ -1681,10 +1829,10 @@ int handle_target(void *priv)
 
                /* clear action flags */
 
-               runSrstAsserted=0;
-               runSrstDeasserted=0;
-               runPowerRestore=0;
-               runPowerDropout=0;
+               runSrstAsserted = 0;
+               runSrstDeasserted = 0;
+               runPowerRestore = 0;
+               runPowerDropout = 0;
 
                recursive = 0;
        }
@@ -1693,7 +1841,7 @@ int handle_target(void *priv)
         * Skip targets that are currently disabled.
         */
        for (target_t *target = all_targets;
-                       target_continuous_poll && target;
+                       is_jtag_poll_safe() && target;
                        target = target->next)
        {
                if (!target->tap->enabled)
@@ -1704,14 +1852,17 @@ int handle_target(void *priv)
                {
                        /* polling may fail silently until the target has been examined */
                        if ((retval = target_poll(target)) != ERROR_OK)
+                       {
+                               target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
                                return retval;
+                       }
                }
        }
 
        return retval;
 }
 
-static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_reg_command)
 {
        target_t *target;
        reg_t *reg = NULL;
@@ -1725,23 +1876,36 @@ static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char
        /* list all available registers for the current target */
        if (argc == 0)
        {
-               reg_cache_t *cache = target->reg_cache;
+               struct reg_cache *cache = target->reg_cache;
 
                count = 0;
                while (cache)
                {
                        int i;
-                       for (i = 0; i < cache->num_regs; i++)
+
+                       command_print(cmd_ctx, "===== %s", cache->name);
+
+                       for (i = 0, reg = cache->reg_list;
+                                       i < cache->num_regs;
+                                       i++, reg++, count++)
                        {
-                               value = buf_to_str(cache->reg_list[i].value, cache->reg_list[i].size, 16);
-                               command_print(cmd_ctx, "(%i) %s (/%i): 0x%s (dirty: %i, valid: %i)", 
-                                                         count++, 
-                                                         cache->reg_list[i].name, 
-                                                         (int)(cache->reg_list[i].size),
-                                                         value, 
-                                                         cache->reg_list[i].dirty, 
-                                                         cache->reg_list[i].valid);
-                               free(value);
+                               /* only print cached values if they are valid */
+                               if (reg->valid) {
+                                       value = buf_to_str(reg->value,
+                                                       reg->size, 16);
+                                       command_print(cmd_ctx,
+                                                       "(%i) %s (/%" PRIu32 "): 0x%s%s",
+                                                       count, reg->name,
+                                                       reg->size, value,
+                                                       reg->dirty
+                                                               ? " (dirty)"
+                                                               : "");
+                                       free(value);
+                               } else {
+                                       command_print(cmd_ctx, "(%i) %s (/%" PRIu32 ")",
+                                                         count, reg->name,
+                                                         reg->size) ;
+                               }
                        }
                        cache = cache->next;
                }
@@ -1753,11 +1917,9 @@ static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char
        if ((args[0][0] >= '0') && (args[0][0] <= '9'))
        {
                unsigned num;
-               int retval = parse_uint(args[0], &num);
-               if (ERROR_OK != retval)
-                       return ERROR_COMMAND_SYNTAX_ERROR;
+               COMMAND_PARSE_NUMBER(uint, args[0], num);
 
-               reg_cache_t *cache = target->reg_cache;
+               struct reg_cache *cache = target->reg_cache;
                count = 0;
                while (cache)
                {
@@ -1799,7 +1961,7 @@ static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char
 
                if (reg->valid == 0)
                {
-                       reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
+                       struct reg_arch_type *arch_type = register_get_arch_type(reg->arch_type);
                        arch_type->get(reg);
                }
                value = buf_to_str(reg->value, reg->size, 16);
@@ -1814,7 +1976,7 @@ static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char
                uint8_t *buf = malloc(CEIL(reg->size, 8));
                str_to_buf(args[1], strlen(args[1]), buf, reg->size, 0);
 
-               reg_arch_type_t *arch_type = register_get_arch_type(reg->arch_type);
+               struct reg_arch_type *arch_type = register_get_arch_type(reg->arch_type);
                arch_type->set(reg, buf);
 
                value = buf_to_str(reg->value, reg->size, 16);
@@ -1831,7 +1993,7 @@ static int handle_reg_command(struct command_context_s *cmd_ctx, char *cmd, char
        return ERROR_OK;
 }
 
-static int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_poll_command)
 {
        int retval = ERROR_OK;
        target_t *target = get_current_target(cmd_ctx);
@@ -1839,7 +2001,7 @@ static int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, cha
        if (argc == 0)
        {
                command_print(cmd_ctx, "background polling: %s",
-                               target_continuous_poll ?  "on" : "off");
+                               jtag_poll_get_enabled() ? "on" : "off");
                command_print(cmd_ctx, "TAP: %s (%s)",
                                target->tap->dotted_name,
                                target->tap->enabled ? "enabled" : "disabled");
@@ -1855,11 +2017,11 @@ static int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, cha
        {
                if (strcmp(args[0], "on") == 0)
                {
-                       target_continuous_poll = 1;
+                       jtag_poll_set_enabled(true);
                }
                else if (strcmp(args[0], "off") == 0)
                {
-                       target_continuous_poll = 0;
+                       jtag_poll_set_enabled(false);
                }
                else
                {
@@ -1873,7 +2035,7 @@ static int handle_poll_command(struct command_context_s *cmd_ctx, char *cmd, cha
        return retval;
 }
 
-static int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_wait_halt_command)
 {
        if (argc > 1)
                return ERROR_COMMAND_SYNTAX_ERROR;
@@ -1884,7 +2046,7 @@ static int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd
                int retval = parse_uint(args[0], &ms);
                if (ERROR_OK != retval)
                {
-                       command_print(cmd_ctx, "usage: %s [seconds]", cmd);
+                       command_print(cmd_ctx, "usage: %s [seconds]", CMD_NAME);
                        return ERROR_COMMAND_SYNTAX_ERROR;
                }
                // convert seconds (given) to milliseconds (needed)
@@ -1904,12 +2066,12 @@ static int handle_wait_halt_command(struct command_context_s *cmd_ctx, char *cmd
 int target_wait_state(target_t *target, enum target_state state, int ms)
 {
        int retval;
-       long long then=0, cur;
-       int once=1;
+       long long then = 0, cur;
+       int once = 1;
 
        for (;;)
        {
-               if ((retval=target_poll(target)) != ERROR_OK)
+               if ((retval = target_poll(target)) != ERROR_OK)
                        return retval;
                if (target->state == state)
                {
@@ -1918,18 +2080,18 @@ int target_wait_state(target_t *target, enum target_state state, int ms)
                cur = timeval_ms();
                if (once)
                {
-                       once=0;
+                       once = 0;
                        then = timeval_ms();
                        LOG_DEBUG("waiting for target %s...",
                                Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
                }
 
-               if (cur-then>500)
+               if (cur-then > 500)
                {
                        keep_alive();
                }
 
-               if ((cur-then)>ms)
+               if ((cur-then) > ms)
                {
                        LOG_ERROR("timed out while waiting for target %s",
                                Jim_Nvp_value2name_simple(nvp_target_state,state)->name);
@@ -1940,7 +2102,7 @@ int target_wait_state(target_t *target, enum target_state state, int ms)
        return ERROR_OK;
 }
 
-static int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_halt_command)
 {
        LOG_DEBUG("-");
 
@@ -1959,10 +2121,10 @@ static int handle_halt_command(struct command_context_s *cmd_ctx, char *cmd, cha
                        return ERROR_OK;
        }
 
-       return handle_wait_halt_command(cmd_ctx, cmd, args, argc);
+       return CALL_COMMAND_HANDLER(handle_wait_halt_command);
 }
 
-static int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_soft_reset_halt_command)
 {
        target_t *target = get_current_target(cmd_ctx);
 
@@ -1973,7 +2135,7 @@ static int handle_soft_reset_halt_command(struct command_context_s *cmd_ctx, cha
        return ERROR_OK;
 }
 
-static int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_reset_command)
 {
        if (argc > 1)
                return ERROR_COMMAND_SYNTAX_ERROR;
@@ -1982,8 +2144,8 @@ static int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, ch
        if (argc == 1)
        {
                const Jim_Nvp *n;
-               n = Jim_Nvp_name2value_simple( nvp_reset_modes, args[0] );
-               if ( (n->name == NULL) || (n->value == RESET_UNKNOWN) ){
+               n = Jim_Nvp_name2value_simple(nvp_reset_modes, args[0]);
+               if ((n->name == NULL) || (n->value == RESET_UNKNOWN)) {
                        return ERROR_COMMAND_SYNTAX_ERROR;
                }
                reset_mode = n->value;
@@ -1994,7 +2156,7 @@ static int handle_reset_command(struct command_context_s *cmd_ctx, char *cmd, ch
 }
 
 
-static int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_resume_command)
 {
        int current = 1;
        if (argc > 1)
@@ -2009,16 +2171,14 @@ static int handle_resume_command(struct command_context_s *cmd_ctx, char *cmd, c
        uint32_t addr = 0;
        if (argc == 1)
        {
-               int retval = parse_u32(args[0], &addr);
-               if (ERROR_OK != retval)
-                       return retval;
+               COMMAND_PARSE_NUMBER(u32, args[0], addr);
                current = 0;
        }
 
        return target_resume(target, current, addr, 1, 0);
 }
 
-static int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_step_command)
 {
        if (argc > 1)
                return ERROR_COMMAND_SYNTAX_ERROR;
@@ -2029,15 +2189,16 @@ static int handle_step_command(struct command_context_s *cmd_ctx, char *cmd, cha
         * with one argument addr = args[0],
         * handle breakpoints, debugging */
        uint32_t addr = 0;
+       int current_pc = 1;
        if (argc == 1)
        {
-               int retval = parse_u32(args[0], &addr);
-               if (ERROR_OK != retval)
-                       return retval;
+               COMMAND_PARSE_NUMBER(u32, args[0], addr);
+               current_pc = 0;
        }
 
        target_t *target = get_current_target(cmd_ctx);
-       return target->type->step(target, 0, addr, 1);
+
+       return target->type->step(target, current_pc, addr, 1);
 }
 
 static void handle_md_output(struct command_context_s *cmd_ctx,
@@ -2066,11 +2227,11 @@ static void handle_md_output(struct command_context_s *cmd_ctx,
                {
                        output_len += snprintf(output + output_len,
                                        sizeof(output) - output_len,
-                                       "0x%8.8x: ", 
+                                       "0x%8.8x: ",
                                        (unsigned)(address + (i*size)));
                }
 
-               uint32_t value=0;
+               uint32_t value = 0;
                const uint8_t *value_ptr = buffer + i * size;
                switch (size) {
                case 4: value = target_buffer_get_u32(target, value_ptr); break;
@@ -2089,37 +2250,47 @@ static void handle_md_output(struct command_context_s *cmd_ctx,
        }
 }
 
-static int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_md_command)
 {
        if (argc < 1)
                return ERROR_COMMAND_SYNTAX_ERROR;
 
        unsigned size = 0;
-       switch (cmd[2]) {
+       switch (CMD_NAME[2]) {
        case 'w': size = 4; break;
        case 'h': size = 2; break;
        case 'b': size = 1; break;
        default: return ERROR_COMMAND_SYNTAX_ERROR;
        }
 
+       bool physical=strcmp(args[0], "phys")==0;
+       int (*fn)(struct target_s *target,
+                       uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
+       if (physical)
+       {
+               argc--;
+               args++;
+               fn=target_read_phys_memory;
+       } else
+       {
+               fn=target_read_memory;
+       }
+       if ((argc < 1) || (argc > 2))
+       {
+               return ERROR_COMMAND_SYNTAX_ERROR;
+       }
+
        uint32_t address;
-       int retval = parse_u32(args[0], &address);
-       if (ERROR_OK != retval)
-               return retval;
+       COMMAND_PARSE_NUMBER(u32, args[0], address);
 
        unsigned count = 1;
        if (argc == 2)
-       {
-               retval = parse_uint(args[1], &count);
-               if (ERROR_OK != retval)
-                       return retval;
-       }
+               COMMAND_PARSE_NUMBER(uint, args[1], count);
 
        uint8_t *buffer = calloc(count, size);
 
        target_t *target = get_current_target(cmd_ctx);
-       retval = target_read_memory(target,
-                               address, size, count, buffer);
+       int retval = fn(target, address, size, count, buffer);
        if (ERROR_OK == retval)
                handle_md_output(cmd_ctx, target, address, size, count, buffer);
 
@@ -2128,33 +2299,41 @@ static int handle_md_command(struct command_context_s *cmd_ctx, char *cmd, char
        return retval;
 }
 
-static int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_mw_command)
 {
-        if ((argc < 2) || (argc > 3))
+       if (argc < 2)
+       {
+               return ERROR_COMMAND_SYNTAX_ERROR;
+       }
+       bool physical=strcmp(args[0], "phys")==0;
+       int (*fn)(struct target_s *target,
+                       uint32_t address, uint32_t size, uint32_t count, uint8_t *buffer);
+       if (physical)
+       {
+               argc--;
+               args++;
+               fn=target_write_phys_memory;
+       } else
+       {
+               fn=target_write_memory;
+       }
+       if ((argc < 2) || (argc > 3))
                return ERROR_COMMAND_SYNTAX_ERROR;
 
        uint32_t address;
-       int retval = parse_u32(args[0], &address);
-       if (ERROR_OK != retval)
-               return retval;
+       COMMAND_PARSE_NUMBER(u32, args[0], address);
 
        uint32_t value;
-       retval = parse_u32(args[1], &value);
-       if (ERROR_OK != retval)
-               return retval;
+       COMMAND_PARSE_NUMBER(u32, args[1], value);
 
        unsigned count = 1;
        if (argc == 3)
-       {
-               retval = parse_uint(args[2], &count);
-               if (ERROR_OK != retval)
-                       return retval;
-       }
+               COMMAND_PARSE_NUMBER(uint, args[2], count);
 
        target_t *target = get_current_target(cmd_ctx);
        unsigned wordsize;
        uint8_t value_buf[4];
-       switch (cmd[2])
+       switch (CMD_NAME[2])
        {
                case 'w':
                        wordsize = 4;
@@ -2173,7 +2352,7 @@ static int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char
        }
        for (unsigned i = 0; i < count; i++)
        {
-               retval = target_write_memory(target,
+               int retval = fn(target,
                                address + i * wordsize, wordsize, 1, value_buf);
                if (ERROR_OK != retval)
                        return retval;
@@ -2184,8 +2363,8 @@ static int handle_mw_command(struct command_context_s *cmd_ctx, char *cmd, char
 
 }
 
-static int parse_load_image_command_args(char **args, int argc,
-               image_t *image, uint32_t *min_address, uint32_t *max_address)
+static COMMAND_HELPER(parse_load_image_command_args, image_t *image,
+               uint32_t *min_address, uint32_t *max_address)
 {
        if (argc < 1 || argc > 5)
                return ERROR_COMMAND_SYNTAX_ERROR;
@@ -2195,9 +2374,7 @@ static int parse_load_image_command_args(char **args, int argc,
        if (argc >= 2)
        {
                uint32_t addr;
-               int retval = parse_u32(args[1], &addr);
-               if (ERROR_OK != retval)
-                       return ERROR_COMMAND_SYNTAX_ERROR;
+               COMMAND_PARSE_NUMBER(u32, args[1], addr);
                image->base_address = addr;
                image->base_address_set = 1;
        }
@@ -2208,15 +2385,11 @@ static int parse_load_image_command_args(char **args, int argc,
 
        if (argc >= 4)
        {
-               int retval = parse_u32(args[3], min_address);
-               if (ERROR_OK != retval)
-                       return ERROR_COMMAND_SYNTAX_ERROR;
+               COMMAND_PARSE_NUMBER(u32, args[3], *min_address);
        }
        if (argc == 5)
        {
-               int retval = parse_u32(args[4], max_address);
-               if (ERROR_OK != retval)
-                       return ERROR_COMMAND_SYNTAX_ERROR;
+               COMMAND_PARSE_NUMBER(u32, args[4], *max_address);
                // use size (given) to find max (required)
                *max_address += *min_address;
        }
@@ -2227,7 +2400,7 @@ static int parse_load_image_command_args(char **args, int argc,
        return ERROR_OK;
 }
 
-static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_load_image_command)
 {
        uint8_t *buffer;
        uint32_t buf_cnt;
@@ -2235,20 +2408,17 @@ static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cm
        uint32_t min_address = 0;
        uint32_t max_address = 0xffffffff;
        int i;
-       int retvaltemp;
-
        image_t image;
 
-       duration_t duration;
-       char *duration_text;
-       
-       int retval = parse_load_image_command_args(args, argc,
+       int retval = CALL_COMMAND_HANDLER(parse_load_image_command_args,
                        &image, &min_address, &max_address);
        if (ERROR_OK != retval)
                return retval;
 
        target_t *target = get_current_target(cmd_ctx);
-       duration_start_measure(&duration);
+
+       struct duration bench;
+       duration_start(&bench);
 
        if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
        {
@@ -2262,8 +2432,8 @@ static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cm
                buffer = malloc(image.sections[i].size);
                if (buffer == NULL)
                {
-                       command_print(cmd_ctx, 
-                                                 "error allocating buffer for section (%d bytes)", 
+                       command_print(cmd_ctx,
+                                                 "error allocating buffer for section (%d bytes)",
                                                  (int)(image.sections[i].size));
                        break;
                }
@@ -2274,69 +2444,60 @@ static int handle_load_image_command(struct command_context_s *cmd_ctx, char *cm
                        break;
                }
 
-               uint32_t offset=0;
-               uint32_t length=buf_cnt;
+               uint32_t offset = 0;
+               uint32_t length = buf_cnt;
 
                /* DANGER!!! beware of unsigned comparision here!!! */
 
-               if ((image.sections[i].base_address+buf_cnt >= min_address)&&
-                               (image.sections[i].base_address<max_address))
+               if ((image.sections[i].base_address + buf_cnt >= min_address)&&
+                               (image.sections[i].base_address < max_address))
                {
-                       if (image.sections[i].base_address<min_address)
+                       if (image.sections[i].base_address < min_address)
                        {
                                /* clip addresses below */
                                offset += min_address-image.sections[i].base_address;
                                length -= offset;
                        }
 
-                       if (image.sections[i].base_address+buf_cnt>max_address)
+                       if (image.sections[i].base_address + buf_cnt > max_address)
                        {
-                               length -= (image.sections[i].base_address+buf_cnt)-max_address;
+                               length -= (image.sections[i].base_address + buf_cnt)-max_address;
                        }
 
-                       if ((retval = target_write_buffer(target, image.sections[i].base_address+offset, length, buffer+offset)) != ERROR_OK)
+                       if ((retval = target_write_buffer(target, image.sections[i].base_address + offset, length, buffer + offset)) != ERROR_OK)
                        {
                                free(buffer);
                                break;
                        }
                        image_size += length;
-                       command_print(cmd_ctx, "%u byte written at address 0x%8.8" PRIx32 "", 
-                                                 (unsigned int)length, 
-                                                 image.sections[i].base_address+offset);
+                       command_print(cmd_ctx, "%u bytes written at address 0x%8.8" PRIx32 "",
+                                                 (unsigned int)length,
+                                                 image.sections[i].base_address + offset);
                }
 
                free(buffer);
        }
 
-       if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
+       if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
        {
-               image_close(&image);
-               return retvaltemp;
+               command_print(cmd_ctx, "downloaded %" PRIu32 " bytes "
+                               "in %fs (%0.3f kb/s)", image_size,
+                               duration_elapsed(&bench), duration_kbps(&bench, image_size));
        }
 
-       if (retval == ERROR_OK)
-       {
-               command_print(cmd_ctx, "downloaded %u byte in %s", 
-                                         (unsigned int)image_size, 
-                                         duration_text);
-       }
-       free(duration_text);
-
        image_close(&image);
 
        return retval;
 
 }
 
-static int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_dump_image_command)
 {
-       fileio_t fileio;
+       struct fileio fileio;
 
        uint8_t buffer[560];
        int retvaltemp;
 
-       duration_t duration;
-       char *duration_text;
 
        target_t *target = get_current_target(cmd_ctx);
 
@@ -2347,27 +2508,23 @@ static int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cm
        }
 
        uint32_t address;
-       int retval = parse_u32(args[1], &address);
-       if (ERROR_OK != retval)
-               return retval;
-
+       COMMAND_PARSE_NUMBER(u32, args[1], address);
        uint32_t size;
-       retval = parse_u32(args[2], &size);
-       if (ERROR_OK != retval)
-               return retval;
+       COMMAND_PARSE_NUMBER(u32, args[2], size);
 
        if (fileio_open(&fileio, args[0], FILEIO_WRITE, FILEIO_BINARY) != ERROR_OK)
        {
                return ERROR_OK;
        }
 
-       duration_start_measure(&duration);
+       struct duration bench;
+       duration_start(&bench);
 
+       int retval = ERROR_OK;
        while (size > 0)
        {
                uint32_t size_written;
                uint32_t this_run_size = (size > 560) ? 560 : size;
-
                retval = target_read_buffer(target, address, this_run_size, buffer);
                if (retval != ERROR_OK)
                {
@@ -2387,34 +2544,28 @@ static int handle_dump_image_command(struct command_context_s *cmd_ctx, char *cm
        if ((retvaltemp = fileio_close(&fileio)) != ERROR_OK)
                return retvaltemp;
 
-       if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
-               return retvaltemp;
-
-       if (retval == ERROR_OK)
+       if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
        {
-               command_print(cmd_ctx, "dumped %lld byte in %s",
-                               fileio.size, duration_text);
-               free(duration_text);
+               command_print(cmd_ctx,
+                               "dumped %lld bytes in %fs (%0.3f kb/s)", fileio.size,
+                               duration_elapsed(&bench), duration_kbps(&bench, fileio.size));
        }
 
        return retval;
 }
 
-static int handle_verify_image_command_internal(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc, int verify)
+static COMMAND_HELPER(handle_verify_image_command_internal, int verify)
 {
        uint8_t *buffer;
        uint32_t buf_cnt;
        uint32_t image_size;
        int i;
-       int retval, retvaltemp;
+       int retval;
        uint32_t checksum = 0;
        uint32_t mem_checksum = 0;
 
        image_t image;
 
-       duration_t duration;
-       char *duration_text;
-
        target_t *target = get_current_target(cmd_ctx);
 
        if (argc < 1)
@@ -2428,14 +2579,13 @@ static int handle_verify_image_command_internal(struct command_context_s *cmd_ct
                return ERROR_FAIL;
        }
 
-       duration_start_measure(&duration);
+       struct duration bench;
+       duration_start(&bench);
 
        if (argc >= 2)
        {
                uint32_t addr;
-               retval = parse_u32(args[1], &addr);
-               if (ERROR_OK != retval)
-                       return ERROR_COMMAND_SYNTAX_ERROR;
+               COMMAND_PARSE_NUMBER(u32, args[1], addr);
                image.base_address = addr;
                image.base_address_set = 1;
        }
@@ -2447,20 +2597,20 @@ static int handle_verify_image_command_internal(struct command_context_s *cmd_ct
 
        image.start_address_set = 0;
 
-       if ((retval=image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
+       if ((retval = image_open(&image, args[0], (argc == 3) ? args[2] : NULL)) != ERROR_OK)
        {
                return retval;
        }
 
        image_size = 0x0;
-       retval=ERROR_OK;
+       retval = ERROR_OK;
        for (i = 0; i < image.num_sections; i++)
        {
                buffer = malloc(image.sections[i].size);
                if (buffer == NULL)
                {
-                       command_print(cmd_ctx, 
-                                                 "error allocating buffer for section (%d bytes)", 
+                       command_print(cmd_ctx,
+                                                 "error allocating buffer for section (%d bytes)",
                                                  (int)(image.sections[i].size));
                        break;
                }
@@ -2473,16 +2623,16 @@ static int handle_verify_image_command_internal(struct command_context_s *cmd_ct
                if (verify)
                {
                        /* calculate checksum of image */
-                       image_calculate_checksum( buffer, buf_cnt, &checksum );
+                       image_calculate_checksum(buffer, buf_cnt, &checksum);
 
                        retval = target_checksum_memory(target, image.sections[i].base_address, buf_cnt, &mem_checksum);
-                       if ( retval != ERROR_OK )
+                       if (retval != ERROR_OK)
                        {
                                free(buffer);
                                break;
                        }
 
-                       if ( checksum != mem_checksum )
+                       if (checksum != mem_checksum)
                        {
                                /* failed crc checksum, fall back to a binary compare */
                                uint8_t *data;
@@ -2507,14 +2657,14 @@ static int handle_verify_image_command_internal(struct command_context_s *cmd_ct
                                        {
                                                if (data[t] != buffer[t])
                                                {
-                                                       command_print(cmd_ctx, 
-                                                                                 "Verify operation failed address 0x%08x. Was 0x%02x instead of 0x%02x\n", 
-                                                                                 (unsigned)(t + image.sections[i].base_address), 
-                                                                                 data[t], 
+                                                       command_print(cmd_ctx,
+                                                                                 "Verify operation failed address 0x%08x. Was 0x%02x instead of 0x%02x\n",
+                                                                                 (unsigned)(t + image.sections[i].base_address),
+                                                                                 data[t],
                                                                                  buffer[t]);
                                                        free(data);
                                                        free(buffer);
-                                                       retval=ERROR_FAIL;
+                                                       retval = ERROR_FAIL;
                                                        goto done;
                                                }
                                                if ((t%16384) == 0)
@@ -2528,8 +2678,8 @@ static int handle_verify_image_command_internal(struct command_context_s *cmd_ct
                        }
                } else
                {
-                       command_print(cmd_ctx, "address 0x%08" PRIx32 " length 0x%08" PRIx32 "", 
-                                                 image.sections[i].base_address, 
+                       command_print(cmd_ctx, "address 0x%08" PRIx32 " length 0x%08" PRIx32 "",
+                                                 image.sections[i].base_address,
                                                  buf_cnt);
                }
 
@@ -2537,34 +2687,26 @@ static int handle_verify_image_command_internal(struct command_context_s *cmd_ct
                image_size += buf_cnt;
        }
 done:
-
-       if ((retvaltemp = duration_stop_measure(&duration, &duration_text)) != ERROR_OK)
+       if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
        {
-               image_close(&image);
-               return retvaltemp;
+               command_print(cmd_ctx, "verified %" PRIu32 " bytes "
+                               "in %fs (%0.3f kb/s)", image_size,
+                               duration_elapsed(&bench), duration_kbps(&bench, image_size));
        }
 
-       if (retval == ERROR_OK)
-       {
-               command_print(cmd_ctx, "verified %u bytes in %s", 
-                                         (unsigned int)image_size, 
-                                         duration_text);
-       }
-       free(duration_text);
-
        image_close(&image);
 
        return retval;
 }
 
-static int handle_verify_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_verify_image_command)
 {
-       return handle_verify_image_command_internal(cmd_ctx, cmd, args, argc, 1);
+       return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 1);
 }
 
-static int handle_test_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_test_image_command)
 {
-       return handle_verify_image_command_internal(cmd_ctx, cmd, args, argc, 0);
+       return CALL_COMMAND_HANDLER(handle_verify_image_command_internal, 0);
 }
 
 static int handle_bp_command_list(struct command_context_s *cmd_ctx)
@@ -2578,7 +2720,7 @@ static int handle_bp_command_list(struct command_context_s *cmd_ctx)
                        char* buf = buf_to_str(breakpoint->orig_instr,
                                        breakpoint->length, 16);
                        command_print(cmd_ctx, "0x%8.8" PRIx32 ", 0x%x, %i, 0x%s",
-                                       breakpoint->address, 
+                                       breakpoint->address,
                                        breakpoint->length,
                                        breakpoint->set, buf);
                        free(buf);
@@ -2586,7 +2728,7 @@ static int handle_bp_command_list(struct command_context_s *cmd_ctx)
                else
                {
                        command_print(cmd_ctx, "0x%8.8" PRIx32 ", 0x%x, %i",
-                                                 breakpoint->address, 
+                                                 breakpoint->address,
                                                  breakpoint->length, breakpoint->set);
                }
 
@@ -2607,8 +2749,7 @@ static int handle_bp_command_set(struct command_context_s *cmd_ctx,
        return retval;
 }
 
-static int handle_bp_command(struct command_context_s *cmd_ctx,
-               char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_bp_command)
 {
        if (argc == 0)
                return handle_bp_command_list(cmd_ctx);
@@ -2620,14 +2761,9 @@ static int handle_bp_command(struct command_context_s *cmd_ctx,
        }
 
        uint32_t addr;
-       int retval = parse_u32(args[0], &addr);
-       if (ERROR_OK != retval)
-               return retval;
-
+       COMMAND_PARSE_NUMBER(u32, args[0], addr);
        uint32_t length;
-       retval = parse_u32(args[1], &length);
-       if (ERROR_OK != retval)
-               return retval;
+       COMMAND_PARSE_NUMBER(u32, args[1], length);
 
        int hw = BKPT_SOFT;
        if (argc == 3)
@@ -2641,15 +2777,13 @@ static int handle_bp_command(struct command_context_s *cmd_ctx,
        return handle_bp_command_set(cmd_ctx, addr, length, hw);
 }
 
-static int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_rbp_command)
 {
        if (argc != 1)
                return ERROR_COMMAND_SYNTAX_ERROR;
 
        uint32_t addr;
-       int retval = parse_u32(args[0], &addr);
-       if (ERROR_OK != retval)
-               return retval;
+       COMMAND_PARSE_NUMBER(u32, args[0], addr);
 
        target_t *target = get_current_target(cmd_ctx);
        breakpoint_remove(target, addr);
@@ -2657,19 +2791,19 @@ static int handle_rbp_command(struct command_context_s *cmd_ctx, char *cmd, char
        return ERROR_OK;
 }
 
-static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_wp_command)
 {
        target_t *target = get_current_target(cmd_ctx);
 
        if (argc == 0)
        {
-               watchpoint_t *watchpoint = target->watchpoints;
+               struct watchpoint *watchpoint = target->watchpoints;
 
                while (watchpoint)
                {
-                       command_print(cmd_ctx, 
-                                                 "address: 0x%8.8" PRIx32 ", len: 0x%8.8x, r/w/a: %i, value: 0x%8.8" PRIx32 ", mask: 0x%8.8" PRIx32 "", 
-                                                 watchpoint->address, 
+                       command_print(cmd_ctx,
+                                                 "address: 0x%8.8" PRIx32 ", len: 0x%8.8x, r/w/a: %i, value: 0x%8.8" PRIx32 ", mask: 0x%8.8" PRIx32 "",
+                                                 watchpoint->address,
                                                  watchpoint->length,
                                                  (int)(watchpoint->rw),
                                                  watchpoint->value,
@@ -2684,19 +2818,14 @@ static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char
        uint32_t length = 0;
        uint32_t data_value = 0x0;
        uint32_t data_mask = 0xffffffff;
-       int retval;
 
        switch (argc)
        {
        case 5:
-               retval = parse_u32(args[4], &data_mask);
-               if (ERROR_OK != retval)
-                       return retval;
+               COMMAND_PARSE_NUMBER(u32, args[4], data_mask);
                // fall through
        case 4:
-               retval = parse_u32(args[3], &data_value);
-               if (ERROR_OK != retval)
-                       return retval;
+               COMMAND_PARSE_NUMBER(u32, args[3], data_value);
                // fall through
        case 3:
                switch (args[2][0])
@@ -2716,20 +2845,17 @@ static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char
                }
                // fall through
        case 2:
-               retval = parse_u32(args[1], &length);
-               if (ERROR_OK != retval)
-                       return retval;
-               retval = parse_u32(args[0], &addr);
-               if (ERROR_OK != retval)
-                       return retval;
+               COMMAND_PARSE_NUMBER(u32, args[1], length);
+               COMMAND_PARSE_NUMBER(u32, args[0], addr);
                break;
 
        default:
-               command_print(cmd_ctx, "usage: wp <address> <length> [r/w/a] [value] [mask]");
+               command_print(cmd_ctx, "usage: wp [address length "
+                               "[(r|w|a) [value [mask]]]]");
                return ERROR_COMMAND_SYNTAX_ERROR;
        }
 
-       retval = watchpoint_add(target, addr, length, type,
+       int retval = watchpoint_add(target, addr, length, type,
                        data_value, data_mask);
        if (ERROR_OK != retval)
                LOG_ERROR("Failure setting watchpoints");
@@ -2737,15 +2863,13 @@ static int handle_wp_command(struct command_context_s *cmd_ctx, char *cmd, char
        return retval;
 }
 
-static int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_rwp_command)
 {
        if (argc != 1)
                return ERROR_COMMAND_SYNTAX_ERROR;
 
        uint32_t addr;
-       int retval = parse_u32(args[0], &addr);
-       if (ERROR_OK != retval)
-               return retval;
+       COMMAND_PARSE_NUMBER(u32, args[0], addr);
 
        target_t *target = get_current_target(cmd_ctx);
        watchpoint_remove(target, addr);
@@ -2760,20 +2884,17 @@ static int handle_rwp_command(struct command_context_s *cmd_ctx, char *cmd, char
  * The low-level target implementation must have logged a detailed error
  * which is forwarded to telnet/GDB session.
  */
-static int handle_virt2phys_command(command_context_t *cmd_ctx,
-               char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_virt2phys_command)
 {
        if (argc != 1)
                return ERROR_COMMAND_SYNTAX_ERROR;
 
        uint32_t va;
-       int retval = parse_u32(args[0], &va);
-       if (ERROR_OK != retval)
-               return retval;
+       COMMAND_PARSE_NUMBER(u32, args[0], va);
        uint32_t pa;
 
        target_t *target = get_current_target(cmd_ctx);
-       retval = target->type->virt2phys(target, va, &pa);
+       int retval = target->type->virt2phys(target, va, &pa);
        if (retval == ERROR_OK)
                command_print(cmd_ctx, "Physical address 0x%08" PRIx32 "", pa);
 
@@ -2790,9 +2911,9 @@ static void writeData(FILE *f, const void *data, size_t len)
 static void writeLong(FILE *f, int l)
 {
        int i;
-       for (i=0; i<4; i++)
+       for (i = 0; i < 4; i++)
        {
-               char c=(l >> (i*8))&0xff;
+               char c = (l >> (i*8))&0xff;
                writeData(f, &c, 1);
        }
 
@@ -2804,10 +2925,10 @@ static void writeString(FILE *f, char *s)
 }
 
 /* Dump a gmon.out histogram file. */
-static void writeGmon(uint32_t *samples, uint32_t sampleNum, char *filename)
+static void writeGmon(uint32_t *samples, uint32_t sampleNum, const char *filename)
 {
        uint32_t i;
-       FILE *f=fopen(filename, "w");
+       FILE *f = fopen(filename, "w");
        if (f == NULL)
                return;
        writeString(f, "gmon");
@@ -2820,42 +2941,42 @@ static void writeGmon(uint32_t *samples, uint32_t sampleNum, char *filename)
        writeData(f, &zero, 1);
 
        /* figure out bucket size */
-       uint32_t min=samples[0];
-       uint32_t max=samples[0];
-       for (i=0; i<sampleNum; i++)
+       uint32_t min = samples[0];
+       uint32_t max = samples[0];
+       for (i = 0; i < sampleNum; i++)
        {
-               if (min>samples[i])
+               if (min > samples[i])
                {
-                       min=samples[i];
+                       min = samples[i];
                }
-               if (max<samples[i])
+               if (max < samples[i])
                {
-                       max=samples[i];
+                       max = samples[i];
                }
        }
 
-       int addressSpace=(max-min+1);
+       int addressSpace = (max-min + 1);
 
        static const uint32_t maxBuckets = 256 * 1024; /* maximum buckets. */
        uint32_t length = addressSpace;
        if (length > maxBuckets)
        {
-               length=maxBuckets;
+               length = maxBuckets;
        }
-       int *buckets=malloc(sizeof(int)*length);
+       int *buckets = malloc(sizeof(int)*length);
        if (buckets == NULL)
        {
                fclose(f);
                return;
        }
        memset(buckets, 0, sizeof(int)*length);
-       for (i=0; i<sampleNum;i++)
+       for (i = 0; i < sampleNum;i++)
        {
-               uint32_t address=samples[i];
-               long long a=address-min;
-               long long b=length-1;
-               long long c=addressSpace-1;
-               int index=(a*b)/c; /* danger!!!! int32 overflows */
+               uint32_t address = samples[i];
+               long long a = address-min;
+               long long b = length-1;
+               long long c = addressSpace-1;
+               int index = (a*b)/c; /* danger!!!! int32 overflows */
                buckets[index]++;
        }
 
@@ -2865,25 +2986,25 @@ static void writeGmon(uint32_t *samples, uint32_t sampleNum, char *filename)
        writeLong(f, length);           /* # of samples */
        writeLong(f, 64000000);         /* 64MHz */
        writeString(f, "seconds");
-       for (i=0; i<(15-strlen("seconds")); i++)
+       for (i = 0; i < (15-strlen("seconds")); i++)
                writeData(f, &zero, 1);
        writeString(f, "s");
 
        /*append binary memory gmon.out profile_hist_data (profile_hist_data + profile_hist_hdr.hist_size) */
 
-       char *data=malloc(2*length);
+       char *data = malloc(2*length);
        if (data != NULL)
        {
-               for (i=0; i<length;i++)
+               for (i = 0; i < length;i++)
                {
                        int val;
-                       val=buckets[i];
-                       if (val>65535)
+                       val = buckets[i];
+                       if (val > 65535)
                        {
-                               val=65535;
+                               val = 65535;
                        }
                        data[i*2]=val&0xff;
-                       data[i*2+1]=(val >> 8)&0xff;
+                       data[i*2 + 1]=(val >> 8)&0xff;
                }
                free(buckets);
                writeData(f, data, length * 2);
@@ -2897,7 +3018,7 @@ static void writeGmon(uint32_t *samples, uint32_t sampleNum, char *filename)
 }
 
 /* profiling samples the CPU PC as quickly as OpenOCD is able, which will be used as a random sampling of PC */
-static int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_profile_command)
 {
        target_t *target = get_current_target(cmd_ctx);
        struct timeval timeout, now;
@@ -2908,25 +3029,24 @@ static int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd,
                return ERROR_COMMAND_SYNTAX_ERROR;
        }
        unsigned offset;
-       int retval = parse_uint(args[0], &offset);
-       if (ERROR_OK != retval)
-               return retval;
+       COMMAND_PARSE_NUMBER(uint, args[0], offset);
 
        timeval_add_time(&timeout, offset, 0);
 
        command_print(cmd_ctx, "Starting profiling. Halting and resuming the target as often as we can...");
 
-       static const int maxSample=10000;
-       uint32_t *samples=malloc(sizeof(uint32_t)*maxSample);
+       static const int maxSample = 10000;
+       uint32_t *samples = malloc(sizeof(uint32_t)*maxSample);
        if (samples == NULL)
                return ERROR_OK;
 
-       int numSamples=0;
+       int numSamples = 0;
        /* hopefully it is safe to cache! We want to stop/restart as quickly as possible. */
        reg_t *reg = register_get_by_name(target->reg_cache, "pc", 1);
 
        for (;;)
        {
+               int retval;
                target_poll(target);
                if (target->state == TARGET_HALTED)
                {
@@ -2946,7 +3066,7 @@ static int handle_profile_command(struct command_context_s *cmd_ctx, char *cmd,
                } else
                {
                        command_print(cmd_ctx, "Target not halted or running");
-                       retval=ERROR_OK;
+                       retval = ERROR_OK;
                        break;
                }
                if (retval != ERROR_OK)
@@ -3028,7 +3148,7 @@ static int jim_mem2array(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
                return JIM_ERR;
        }
 
-       return  target_mem2array(interp, target, argc-1, argv+1);
+       return  target_mem2array(interp, target, argc-1, argv + 1);
 }
 
 static int target_mem2array(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv)
@@ -3084,7 +3204,7 @@ static int target_mem2array(Jim_Interp *interp, target_t *target, int argc, Jim_
                        break;
                default:
                        Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
-                       Jim_AppendStrings( interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL );
+                       Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
                        return JIM_ERR;
        }
        if (len == 0) {
@@ -3111,8 +3231,8 @@ static int target_mem2array(Jim_Interp *interp, target_t *target, int argc, Jim_
        } else {
                char buf[100];
                Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
-               sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads", 
-                               addr, 
+               sprintf(buf, "mem2array address: 0x%08" PRIx32 " is not aligned for %" PRId32 " byte reads",
+                               addr,
                                width);
                Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
                return JIM_ERR;
@@ -3132,12 +3252,12 @@ static int target_mem2array(Jim_Interp *interp, target_t *target, int argc, Jim_
                        count = (sizeof(buffer)/width);
                }
 
-               retval = target_read_memory( target, addr, width, count, buffer );
+               retval = target_read_memory(target, addr, width, count, buffer);
                if (retval != ERROR_OK) {
                        /* BOO !*/
-                       LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed", 
-                                         (unsigned int)addr, 
-                                         (int)width, 
+                       LOG_ERROR("mem2array: Read @ 0x%08x, w=%d, cnt=%d, failed",
+                                         (unsigned int)addr,
+                                         (int)width,
                                          (int)count);
                        Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
                        Jim_AppendStrings(interp, Jim_GetResult(interp), "mem2array: cannot read memory", NULL);
@@ -3205,19 +3325,18 @@ static int jim_array2mem(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
        target_t *target;
 
        context = Jim_GetAssocData(interp, "context");
-       if (context == NULL){
+       if (context == NULL) {
                LOG_ERROR("array2mem: no command context");
                return JIM_ERR;
        }
        target = get_current_target(context);
-       if (target == NULL){
+       if (target == NULL) {
                LOG_ERROR("array2mem: no current target");
                return JIM_ERR;
        }
 
-       return target_array2mem( interp,target, argc-1, argv+1 );
+       return target_array2mem(interp,target, argc-1, argv + 1);
 }
-
 static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_Obj *const *argv)
 {
        long l;
@@ -3271,7 +3390,7 @@ static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_
                        break;
                default:
                        Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
-                       Jim_AppendStrings( interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL );
+                       Jim_AppendStrings(interp, Jim_GetResult(interp), "Invalid width param, must be 8/16/32", NULL);
                        return JIM_ERR;
        }
        if (len == 0) {
@@ -3298,8 +3417,8 @@ static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_
        } else {
                char buf[100];
                Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
-               sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads", 
-                               (unsigned int)addr, 
+               sprintf(buf, "array2mem address: 0x%08x is not aligned for %d byte reads",
+                               (unsigned int)addr,
                                (int)width);
                Jim_AppendStrings(interp, Jim_GetResult(interp), buf , NULL);
                return JIM_ERR;
@@ -3339,9 +3458,9 @@ static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_
                retval = target_write_memory(target, addr, width, count, buffer);
                if (retval != ERROR_OK) {
                        /* BOO !*/
-                       LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed", 
-                                         (unsigned int)addr, 
-                                         (int)width, 
+                       LOG_ERROR("array2mem: Write @ 0x%08x, w=%d, cnt=%d, failed",
+                                         (unsigned int)addr,
+                                         (int)width,
                                          (int)count);
                        Jim_SetResult(interp, Jim_NewEmptyStringObj(interp));
                        Jim_AppendStrings(interp, Jim_GetResult(interp), "array2mem: cannot read memory", NULL);
@@ -3355,50 +3474,43 @@ static int target_array2mem(Jim_Interp *interp, target_t *target, int argc, Jim_
        return JIM_OK;
 }
 
-void target_all_handle_event( enum target_event e )
+void target_all_handle_event(enum target_event e)
 {
        target_t *target;
 
-       LOG_DEBUG( "**all*targets: event: %d, %s",
+       LOG_DEBUG("**all*targets: event: %d, %s",
                           (int)e,
-                          Jim_Nvp_value2name_simple( nvp_target_event, e )->name );
+                          Jim_Nvp_value2name_simple(nvp_target_event, e)->name);
 
        target = all_targets;
-       while (target){
-               target_handle_event( target, e );
+       while (target) {
+               target_handle_event(target, e);
                target = target->next;
        }
 }
 
-void target_handle_event( target_t *target, enum target_event e )
+
+/* FIX? should we propagate errors here rather than printing them
+ * and continuing?
+ */
+void target_handle_event(target_t *target, enum target_event e)
 {
        target_event_action_t *teap;
-       int done;
 
-       teap = target->event_action;
-
-       done = 0;
-       while ( teap ){
-               if ( teap->event == e ){
-                       done = 1;
-                       LOG_DEBUG( "target: (%d) %s (%s) event: %d (%s) action: %s\n",
+       for (teap = target->event_action; teap != NULL; teap = teap->next) {
+               if (teap->event == e) {
+                       LOG_DEBUG("target: (%d) %s (%s) event: %d (%s) action: %s",
                                           target->target_number,
                                           target->cmd_name,
                                           target_get_name(target),
                                           e,
-                                          Jim_Nvp_value2name_simple( nvp_target_event, e )->name,
-                                          Jim_GetString( teap->body, NULL ) );
-                       if (Jim_EvalObj( interp, teap->body ) != JIM_OK)
+                                          Jim_Nvp_value2name_simple(nvp_target_event, e)->name,
+                                          Jim_GetString(teap->body, NULL));
+                       if (Jim_EvalObj(interp, teap->body) != JIM_OK)
                        {
                                Jim_PrintErrorMessage(interp);
                        }
                }
-               teap = teap->next;
-       }
-       if ( !done ){
-               LOG_DEBUG( "event: %d %s - no action",
-                                  e,
-                                  Jim_Nvp_value2name_simple( nvp_target_event, e )->name );
        }
 }
 
@@ -3428,7 +3540,7 @@ static Jim_Nvp nvp_config_opts[] = {
        { .name = NULL, .value = -1 }
 };
 
-static int target_configure( Jim_GetOptInfo *goi, target_t *target )
+static int target_configure(Jim_GetOptInfo *goi, target_t *target)
 {
        Jim_Nvp *n;
        Jim_Obj *o;
@@ -3437,64 +3549,64 @@ static int target_configure( Jim_GetOptInfo *goi, target_t *target )
        int e;
 
        /* parse config or cget options ... */
-       while ( goi->argc > 0 ){
-               Jim_SetEmptyResult( goi->interp );
-               /* Jim_GetOpt_Debug( goi ); */
+       while (goi->argc > 0) {
+               Jim_SetEmptyResult(goi->interp);
+               /* Jim_GetOpt_Debug(goi); */
 
-               if ( target->type->target_jim_configure ){
+               if (target->type->target_jim_configure) {
                        /* target defines a configure function */
                        /* target gets first dibs on parameters */
-                       e = (*(target->type->target_jim_configure))( target, goi );
-                       if ( e == JIM_OK ){
+                       e = (*(target->type->target_jim_configure))(target, goi);
+                       if (e == JIM_OK) {
                                /* more? */
                                continue;
                        }
-                       if ( e == JIM_ERR ){
+                       if (e == JIM_ERR) {
                                /* An error */
                                return e;
                        }
                        /* otherwise we 'continue' below */
                }
-               e = Jim_GetOpt_Nvp( goi, nvp_config_opts, &n );
-               if ( e != JIM_OK ){
-                       Jim_GetOpt_NvpUnknown( goi, nvp_config_opts, 0 );
+               e = Jim_GetOpt_Nvp(goi, nvp_config_opts, &n);
+               if (e != JIM_OK) {
+                       Jim_GetOpt_NvpUnknown(goi, nvp_config_opts, 0);
                        return e;
                }
-               switch ( n->value ){
+               switch (n->value) {
                case TCFG_TYPE:
                        /* not setable */
-                       if ( goi->isconfigure ){
-                               Jim_SetResult_sprintf( goi->interp, "not setable: %s", n->name );
+                       if (goi->isconfigure) {
+                               Jim_SetResult_sprintf(goi->interp, "not setable: %s", n->name);
                                return JIM_ERR;
                        } else {
                        no_params:
-                               if ( goi->argc != 0 ){
-                                       Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "NO PARAMS");
+                               if (goi->argc != 0) {
+                                       Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "NO PARAMS");
                                        return JIM_ERR;
                                }
                        }
-                       Jim_SetResultString( goi->interp, target_get_name(target), -1 );
+                       Jim_SetResultString(goi->interp, target_get_name(target), -1);
                        /* loop for more */
                        break;
                case TCFG_EVENT:
-                       if ( goi->argc == 0 ){
-                               Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
+                       if (goi->argc == 0) {
+                               Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ...");
                                return JIM_ERR;
                        }
 
-                       e = Jim_GetOpt_Nvp( goi, nvp_target_event, &n );
-                       if ( e != JIM_OK ){
-                               Jim_GetOpt_NvpUnknown( goi, nvp_target_event, 1 );
+                       e = Jim_GetOpt_Nvp(goi, nvp_target_event, &n);
+                       if (e != JIM_OK) {
+                               Jim_GetOpt_NvpUnknown(goi, nvp_target_event, 1);
                                return e;
                        }
 
-                       if ( goi->isconfigure ){
-                               if ( goi->argc != 1 ){
-                                       Jim_WrongNumArgs( goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
+                       if (goi->isconfigure) {
+                               if (goi->argc != 1) {
+                                       Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name? ?EVENT-BODY?");
                                        return JIM_ERR;
                                }
                        } else {
-                               if ( goi->argc != 0 ){
+                               if (goi->argc != 0) {
                                        Jim_WrongNumArgs(goi->interp, goi->argc, goi->argv, "-event ?event-name?");
                                        return JIM_ERR;
                                }
@@ -3505,24 +3617,26 @@ static int target_configure( Jim_GetOptInfo *goi, target_t *target )
 
                                teap = target->event_action;
                                /* replace existing? */
-                               while ( teap ){
-                                       if ( teap->event == (enum target_event)n->value ){
+                               while (teap) {
+                                       if (teap->event == (enum target_event)n->value) {
                                                break;
                                        }
                                        teap = teap->next;
                                }
 
-                               if ( goi->isconfigure ){
-                                       if ( teap == NULL ){
+                               if (goi->isconfigure) {
+                                       bool replace = true;
+                                       if (teap == NULL) {
                                                /* create new */
-                                               teap = calloc( 1, sizeof(*teap) );
+                                               teap = calloc(1, sizeof(*teap));
+                                               replace = false;
                                        }
                                        teap->event = n->value;
-                                       Jim_GetOpt_Obj( goi, &o );
-                                       if ( teap->body ){
-                                               Jim_DecrRefCount( interp, teap->body );
+                                       Jim_GetOpt_Obj(goi, &o);
+                                       if (teap->body) {
+                                               Jim_DecrRefCount(interp, teap->body);
                                        }
-                                       teap->body  = Jim_DuplicateObj( goi->interp, o );
+                                       teap->body  = Jim_DuplicateObj(goi->interp, o);
                                        /*
                                         * FIXME:
                                         *     Tcl/TK - "tk events" have a nice feature.
@@ -3533,18 +3647,21 @@ static int target_configure( Jim_GetOptInfo *goi, target_t *target )
                                         *     The idea is: %N - target number
                                         *     The idea is: %E - event name.
                                         */
-                                       Jim_IncrRefCount( teap->body );
+                                       Jim_IncrRefCount(teap->body);
 
-                                       /* add to head of event list */
-                                       teap->next = target->event_action;
-                                       target->event_action = teap;
+                                       if (!replace)
+                                       {
+                                               /* add to head of event list */
+                                               teap->next = target->event_action;
+                                               target->event_action = teap;
+                                       }
                                        Jim_SetEmptyResult(goi->interp);
                                } else {
                                        /* get */
-                                       if ( teap == NULL ){
-                                               Jim_SetEmptyResult( goi->interp );
+                                       if (teap == NULL) {
+                                               Jim_SetEmptyResult(goi->interp);
                                        } else {
-                                               Jim_SetResult( goi->interp, Jim_DuplicateObj( goi->interp, teap->body ) );
+                                               Jim_SetResult(goi->interp, Jim_DuplicateObj(goi->interp, teap->body));
                                        }
                                }
                        }
@@ -3552,67 +3669,69 @@ static int target_configure( Jim_GetOptInfo *goi, target_t *target )
                        break;
 
                case TCFG_WORK_AREA_VIRT:
-                       if ( goi->isconfigure ){
+                       if (goi->isconfigure) {
                                target_free_all_working_areas(target);
-                               e = Jim_GetOpt_Wide( goi, &w );
-                               if ( e != JIM_OK ){
+                               e = Jim_GetOpt_Wide(goi, &w);
+                               if (e != JIM_OK) {
                                        return e;
                                }
                                target->working_area_virt = w;
+                               target->working_area_virt_spec = true;
                        } else {
-                               if ( goi->argc != 0 ){
+                               if (goi->argc != 0) {
                                        goto no_params;
                                }
                        }
-                       Jim_SetResult( interp, Jim_NewIntObj( goi->interp, target->working_area_virt ) );
+                       Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->working_area_virt));
                        /* loop for more */
                        break;
 
                case TCFG_WORK_AREA_PHYS:
-                       if ( goi->isconfigure ){
+                       if (goi->isconfigure) {
                                target_free_all_working_areas(target);
-                               e = Jim_GetOpt_Wide( goi, &w );
-                               if ( e != JIM_OK ){
+                               e = Jim_GetOpt_Wide(goi, &w);
+                               if (e != JIM_OK) {
                                        return e;
                                }
                                target->working_area_phys = w;
+                               target->working_area_phys_spec = true;
                        } else {
-                               if ( goi->argc != 0 ){
+                               if (goi->argc != 0) {
                                        goto no_params;
                                }
                        }
-                       Jim_SetResult( interp, Jim_NewIntObj( goi->interp, target->working_area_phys ) );
+                       Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->working_area_phys));
                        /* loop for more */
                        break;
 
                case TCFG_WORK_AREA_SIZE:
-                       if ( goi->isconfigure ){
+                       if (goi->isconfigure) {
                                target_free_all_working_areas(target);
-                               e = Jim_GetOpt_Wide( goi, &w );
-                               if ( e != JIM_OK ){
+                               e = Jim_GetOpt_Wide(goi, &w);
+                               if (e != JIM_OK) {
                                        return e;
                                }
                                target->working_area_size = w;
                        } else {
-                               if ( goi->argc != 0 ){
+                               if (goi->argc != 0) {
                                        goto no_params;
                                }
                        }
-                       Jim_SetResult( interp, Jim_NewIntObj( goi->interp, target->working_area_size ) );
+                       Jim_SetResult(interp, Jim_NewIntObj(goi->interp, target->working_area_size));
                        /* loop for more */
                        break;
 
                case TCFG_WORK_AREA_BACKUP:
-                       if ( goi->isconfigure ){
+                       if (goi->isconfigure) {
                                target_free_all_working_areas(target);
-                               e = Jim_GetOpt_Wide( goi, &w );
-                               if ( e != JIM_OK ){
+                               e = Jim_GetOpt_Wide(goi, &w);
+                               if (e != JIM_OK) {
                                        return e;
                                }
                                /* make this exactly 1 or 0 */
                                target->backup_working_area = (!!w);
                        } else {
-                               if ( goi->argc != 0 ){
+                               if (goi->argc != 0) {
                                        goto no_params;
                                }
                        }
@@ -3621,73 +3740,73 @@ static int target_configure( Jim_GetOptInfo *goi, target_t *target )
                        break;
 
                case TCFG_ENDIAN:
-                       if ( goi->isconfigure ){
-                               e = Jim_GetOpt_Nvp( goi, nvp_target_endian, &n );
-                               if ( e != JIM_OK ){
-                                       Jim_GetOpt_NvpUnknown( goi, nvp_target_endian, 1 );
+                       if (goi->isconfigure) {
+                               e = Jim_GetOpt_Nvp(goi, nvp_target_endian, &n);
+                               if (e != JIM_OK) {
+                                       Jim_GetOpt_NvpUnknown(goi, nvp_target_endian, 1);
                                        return e;
                                }
                                target->endianness = n->value;
                        } else {
-                               if ( goi->argc != 0 ){
+                               if (goi->argc != 0) {
                                        goto no_params;
                                }
                        }
-                       n = Jim_Nvp_value2name_simple( nvp_target_endian, target->endianness );
-                       if ( n->name == NULL ){
+                       n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
+                       if (n->name == NULL) {
                                target->endianness = TARGET_LITTLE_ENDIAN;
-                               n = Jim_Nvp_value2name_simple( nvp_target_endian, target->endianness );
+                               n = Jim_Nvp_value2name_simple(nvp_target_endian, target->endianness);
                        }
-                       Jim_SetResultString( goi->interp, n->name, -1 );
+                       Jim_SetResultString(goi->interp, n->name, -1);
                        /* loop for more */
                        break;
 
                case TCFG_VARIANT:
-                       if ( goi->isconfigure ){
-                               if ( goi->argc < 1 ){
-                                       Jim_SetResult_sprintf( goi->interp,
+                       if (goi->isconfigure) {
+                               if (goi->argc < 1) {
+                                       Jim_SetResult_sprintf(goi->interp,
                                                                                   "%s ?STRING?",
-                                                                                  n->name );
+                                                                                  n->name);
                                        return JIM_ERR;
                                }
-                               if ( target->variant ){
+                               if (target->variant) {
                                        free((void *)(target->variant));
                                }
-                               e = Jim_GetOpt_String( goi, &cp, NULL );
+                               e = Jim_GetOpt_String(goi, &cp, NULL);
                                target->variant = strdup(cp);
                        } else {
-                               if ( goi->argc != 0 ){
+                               if (goi->argc != 0) {
                                        goto no_params;
                                }
                        }
-                       Jim_SetResultString( goi->interp, target->variant,-1 );
+                       Jim_SetResultString(goi->interp, target->variant,-1);
                        /* loop for more */
                        break;
                case TCFG_CHAIN_POSITION:
-                       if ( goi->isconfigure ){
+                       if (goi->isconfigure) {
                                Jim_Obj *o;
-                               jtag_tap_t *tap;
+                               struct jtag_tap *tap;
                                target_free_all_working_areas(target);
-                               e = Jim_GetOpt_Obj( goi, &o );
-                               if ( e != JIM_OK ){
+                               e = Jim_GetOpt_Obj(goi, &o);
+                               if (e != JIM_OK) {
                                        return e;
                                }
-                               tap = jtag_tap_by_jim_obj( goi->interp, o );
-                               if ( tap == NULL ){
+                               tap = jtag_tap_by_jim_obj(goi->interp, o);
+                               if (tap == NULL) {
                                        return JIM_ERR;
                                }
                                /* make this exactly 1 or 0 */
                                target->tap = tap;
                        } else {
-                               if ( goi->argc != 0 ){
+                               if (goi->argc != 0) {
                                        goto no_params;
                                }
                        }
-                       Jim_SetResultString( interp, target->tap->dotted_name, -1 );
+                       Jim_SetResultString(interp, target->tap->dotted_name, -1);
                        /* loop for more e*/
                        break;
                }
-       } /* while ( goi->argc ) */
+       } /* while (goi->argc) */
 
 
                /* done - we return */
@@ -3695,7 +3814,7 @@ static int target_configure( Jim_GetOptInfo *goi, target_t *target )
 }
 
 /** this is the 'tcl' handler for the target specific command */
-static int tcl_target_func( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
+static int tcl_target_func(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 {
        Jim_GetOptInfo goi;
        jim_wide a,b,c;
@@ -3749,36 +3868,36 @@ static int tcl_target_func( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
        };
 
        /* go past the "command" */
-       Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
+       Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
 
-       target = Jim_CmdPrivData( goi.interp );
+       target = Jim_CmdPrivData(goi.interp);
        cmd_ctx = Jim_GetAssocData(goi.interp, "context");
 
        /* commands here are in an NVP table */
-       e = Jim_GetOpt_Nvp( &goi, target_options, &n );
-       if ( e != JIM_OK ){
-               Jim_GetOpt_NvpUnknown( &goi, target_options, 0 );
+       e = Jim_GetOpt_Nvp(&goi, target_options, &n);
+       if (e != JIM_OK) {
+               Jim_GetOpt_NvpUnknown(&goi, target_options, 0);
                return e;
        }
        /* Assume blank result */
-       Jim_SetEmptyResult( goi.interp );
+       Jim_SetEmptyResult(goi.interp);
 
-       switch ( n->value ){
+       switch (n->value) {
        case TS_CMD_CONFIGURE:
-               if ( goi.argc < 2 ){
-                       Jim_WrongNumArgs( goi.interp, goi.argc, goi.argv, "missing: -option VALUE ...");
+               if (goi.argc < 2) {
+                       Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv, "missing: -option VALUE ...");
                        return JIM_ERR;
                }
                goi.isconfigure = 1;
-               return target_configure( &goi, target );
+               return target_configure(&goi, target);
        case TS_CMD_CGET:
                // some things take params
-               if ( goi.argc < 1 ){
-                       Jim_WrongNumArgs( goi.interp, 0, goi.argv, "missing: ?-option?");
+               if (goi.argc < 1) {
+                       Jim_WrongNumArgs(goi.interp, 0, goi.argv, "missing: ?-option?");
                        return JIM_ERR;
                }
                goi.isconfigure = 0;
-               return target_configure( &goi, target );
+               return target_configure(&goi, target);
                break;
        case TS_CMD_MWW:
        case TS_CMD_MWH:
@@ -3789,50 +3908,50 @@ static int tcl_target_func( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
                 * argv[3] = optional count.
                 */
 
-               if ( (goi.argc == 2) || (goi.argc == 3) ){
+               if ((goi.argc == 2) || (goi.argc == 3)) {
                        /* all is well */
                } else {
                mwx_error:
-                       Jim_SetResult_sprintf( goi.interp, "expected: %s ADDR DATA [COUNT]", n->name );
+                       Jim_SetResult_sprintf(goi.interp, "expected: %s ADDR DATA [COUNT]", n->name);
                        return JIM_ERR;
                }
 
-               e = Jim_GetOpt_Wide( &goi, &a );
-               if ( e != JIM_OK ){
+               e = Jim_GetOpt_Wide(&goi, &a);
+               if (e != JIM_OK) {
                        goto mwx_error;
                }
 
-               e = Jim_GetOpt_Wide( &goi, &b );
-               if ( e != JIM_OK ){
+               e = Jim_GetOpt_Wide(&goi, &b);
+               if (e != JIM_OK) {
                        goto mwx_error;
                }
                if (goi.argc == 3) {
-                       e = Jim_GetOpt_Wide( &goi, &c );
-                       if ( e != JIM_OK ){
+                       e = Jim_GetOpt_Wide(&goi, &c);
+                       if (e != JIM_OK) {
                                goto mwx_error;
                        }
                } else {
                        c = 1;
                }
 
-               switch ( n->value ){
+               switch (n->value) {
                case TS_CMD_MWW:
-                       target_buffer_set_u32( target, target_buf, b );
+                       target_buffer_set_u32(target, target_buf, b);
                        b = 4;
                        break;
                case TS_CMD_MWH:
-                       target_buffer_set_u16( target, target_buf, b );
+                       target_buffer_set_u16(target, target_buf, b);
                        b = 2;
                        break;
                case TS_CMD_MWB:
-                       target_buffer_set_u8( target, target_buf, b );
+                       target_buffer_set_u8(target, target_buf, b);
                        b = 1;
                        break;
                }
-               for ( x = 0 ; x < c ; x++ ){
-                       e = target_write_memory( target, a, b, 1, target_buf );
-                       if ( e != ERROR_OK ){
-                               Jim_SetResult_sprintf( interp, "Error writing @ 0x%08x: %d\n", (int)(a), e );
+               for (x = 0 ; x < c ; x++) {
+                       e = target_write_memory(target, a, b, 1, target_buf);
+                       if (e != ERROR_OK) {
+                               Jim_SetResult_sprintf(interp, "Error writing @ 0x%08x: %d\n", (int)(a), e);
                                return JIM_ERR;
                        }
                        /* b = width */
@@ -3849,24 +3968,24 @@ static int tcl_target_func( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
                 * argv[1] = address
                 * argv[2] = optional count
                 */
-               if ( (goi.argc == 2) || (goi.argc == 3) ){
-                       Jim_SetResult_sprintf( goi.interp, "expected: %s ADDR [COUNT]", n->name );
+               if ((goi.argc == 2) || (goi.argc == 3)) {
+                       Jim_SetResult_sprintf(goi.interp, "expected: %s ADDR [COUNT]", n->name);
                        return JIM_ERR;
                }
-               e = Jim_GetOpt_Wide( &goi, &a );
-               if ( e != JIM_OK ){
+               e = Jim_GetOpt_Wide(&goi, &a);
+               if (e != JIM_OK) {
                        return JIM_ERR;
                }
-               if ( goi.argc ){
-                       e = Jim_GetOpt_Wide( &goi, &c );
-                       if ( e != JIM_OK ){
+               if (goi.argc) {
+                       e = Jim_GetOpt_Wide(&goi, &c);
+                       if (e != JIM_OK) {
                                return JIM_ERR;
                        }
                } else {
                        c = 1;
                }
                b = 1; /* shut up gcc */
-               switch ( n->value ){
+               switch (n->value) {
                case TS_CMD_MDW:
                        b =  4;
                        break;
@@ -3881,52 +4000,52 @@ static int tcl_target_func( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
                /* convert to "bytes" */
                c = c * b;
                /* count is now in 'BYTES' */
-               while ( c > 0 ){
+               while (c > 0) {
                        y = c;
-                       if ( y > 16 ){
+                       if (y > 16) {
                                y = 16;
                        }
-                       e = target_read_memory( target, a, b, y / b, target_buf );
-                       if ( e != ERROR_OK ){
-                               Jim_SetResult_sprintf( interp, "error reading target @ 0x%08lx", (int)(a) );
+                       e = target_read_memory(target, a, b, y / b, target_buf);
+                       if (e != ERROR_OK) {
+                               Jim_SetResult_sprintf(interp, "error reading target @ 0x%08lx", (int)(a));
                                return JIM_ERR;
                        }
 
-                       Jim_fprintf( interp, interp->cookie_stdout, "0x%08x ", (int)(a) );
-                       switch ( b ){
+                       Jim_fprintf(interp, interp->cookie_stdout, "0x%08x ", (int)(a));
+                       switch (b) {
                        case 4:
-                               for ( x = 0 ; (x < 16) && (x < y) ; x += 4 ){
-                                       z = target_buffer_get_u32( target, &(target_buf[ x * 4 ]) );
-                                       Jim_fprintf( interp, interp->cookie_stdout, "%08x ", (int)(z) );
+                               for (x = 0 ; (x < 16) && (x < y) ; x += 4) {
+                                       z = target_buffer_get_u32(target, &(target_buf[ x * 4 ]));
+                                       Jim_fprintf(interp, interp->cookie_stdout, "%08x ", (int)(z));
                                }
-                               for ( ; (x < 16) ; x += 4 ){
-                                       Jim_fprintf( interp, interp->cookie_stdout, "         " );
+                               for (; (x < 16) ; x += 4) {
+                                       Jim_fprintf(interp, interp->cookie_stdout, "         ");
                                }
                                break;
                        case 2:
-                               for ( x = 0 ; (x < 16) && (x < y) ; x += 2 ){
-                                       z = target_buffer_get_u16( target, &(target_buf[ x * 2 ]) );
-                                       Jim_fprintf( interp, interp->cookie_stdout, "%04x ", (int)(z) );
+                               for (x = 0 ; (x < 16) && (x < y) ; x += 2) {
+                                       z = target_buffer_get_u16(target, &(target_buf[ x * 2 ]));
+                                       Jim_fprintf(interp, interp->cookie_stdout, "%04x ", (int)(z));
                                }
-                               for ( ; (x < 16) ; x += 2 ){
-                                       Jim_fprintf( interp, interp->cookie_stdout, "     " );
+                               for (; (x < 16) ; x += 2) {
+                                       Jim_fprintf(interp, interp->cookie_stdout, "     ");
                                }
                                break;
                        case 1:
                        default:
-                               for ( x = 0 ; (x < 16) && (x < y) ; x += 1 ){
-                                       z = target_buffer_get_u8( target, &(target_buf[ x * 4 ]) );
-                                       Jim_fprintf( interp, interp->cookie_stdout, "%02x ", (int)(z) );
+                               for (x = 0 ; (x < 16) && (x < y) ; x += 1) {
+                                       z = target_buffer_get_u8(target, &(target_buf[ x * 4 ]));
+                                       Jim_fprintf(interp, interp->cookie_stdout, "%02x ", (int)(z));
                                }
-                               for ( ; (x < 16) ; x += 1 ){
-                                       Jim_fprintf( interp, interp->cookie_stdout, "   " );
+                               for (; (x < 16) ; x += 1) {
+                                       Jim_fprintf(interp, interp->cookie_stdout, "   ");
                                }
                                break;
                        }
                        /* ascii-ify the bytes */
-                       for ( x = 0 ; x < y ; x++ ){
-                               if ( (target_buf[x] >= 0x20) &&
-                                       (target_buf[x] <= 0x7e) ){
+                       for (x = 0 ; x < y ; x++) {
+                               if ((target_buf[x] >= 0x20) &&
+                                       (target_buf[x] <= 0x7e){
                                        /* good */
                                } else {
                                        /* smack it */
@@ -3934,119 +4053,127 @@ static int tcl_target_func( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
                                }
                        }
                        /* space pad  */
-                       while ( x < 16 ){
+                       while (x < 16) {
                                target_buf[x] = ' ';
                                x++;
                        }
                        /* terminate */
                        target_buf[16] = 0;
                        /* print - with a newline */
-                       Jim_fprintf( interp, interp->cookie_stdout, "%s\n", target_buf );
+                       Jim_fprintf(interp, interp->cookie_stdout, "%s\n", target_buf);
                        /* NEXT... */
                        c -= 16;
                        a += 16;
                }
                return JIM_OK;
        case TS_CMD_MEM2ARRAY:
-               return target_mem2array( goi.interp, target, goi.argc, goi.argv );
+               return target_mem2array(goi.interp, target, goi.argc, goi.argv);
                break;
        case TS_CMD_ARRAY2MEM:
-               return target_array2mem( goi.interp, target, goi.argc, goi.argv );
+               return target_array2mem(goi.interp, target, goi.argc, goi.argv);
                break;
        case TS_CMD_EXAMINE:
-               if ( goi.argc ){
-                       Jim_WrongNumArgs( goi.interp, 2, argv, "[no parameters]");
+               if (goi.argc) {
+                       Jim_WrongNumArgs(goi.interp, 2, argv, "[no parameters]");
                        return JIM_ERR;
                }
                if (!target->tap->enabled)
                        goto err_tap_disabled;
-               e = target->type->examine( target );
-               if ( e != ERROR_OK ){
-                       Jim_SetResult_sprintf( interp, "examine-fails: %d", e );
+               e = target->type->examine(target);
+               if (e != ERROR_OK) {
+                       Jim_SetResult_sprintf(interp, "examine-fails: %d", e);
                        return JIM_ERR;
                }
                return JIM_OK;
        case TS_CMD_POLL:
-               if ( goi.argc ){
-                       Jim_WrongNumArgs( goi.interp, 2, argv, "[no parameters]");
+               if (goi.argc) {
+                       Jim_WrongNumArgs(goi.interp, 2, argv, "[no parameters]");
                        return JIM_ERR;
                }
                if (!target->tap->enabled)
                        goto err_tap_disabled;
-               if ( !(target_was_examined(target)) ){
+               if (!(target_was_examined(target))) {
                        e = ERROR_TARGET_NOT_EXAMINED;
                } else {
-                       e = target->type->poll( target );
+                       e = target->type->poll(target);
                }
-               if ( e != ERROR_OK ){
-                       Jim_SetResult_sprintf( interp, "poll-fails: %d", e );
+               if (e != ERROR_OK) {
+                       Jim_SetResult_sprintf(interp, "poll-fails: %d", e);
                        return JIM_ERR;
                } else {
                        return JIM_OK;
                }
                break;
        case TS_CMD_RESET:
-               if ( goi.argc != 2 ){
-                       Jim_WrongNumArgs( interp, 2, argv, "t|f|assert|deassert BOOL");
+               if (goi.argc != 2) {
+                       Jim_WrongNumArgs(interp, 2, argv,
+                                       "([tT]|[fF]|assert|deassert) BOOL");
                        return JIM_ERR;
                }
-               e = Jim_GetOpt_Nvp( &goi, nvp_assert, &n );
-               if ( e != JIM_OK ){
-                       Jim_GetOpt_NvpUnknown( &goi, nvp_assert, 1 );
+               e = Jim_GetOpt_Nvp(&goi, nvp_assert, &n);
+               if (e != JIM_OK) {
+                       Jim_GetOpt_NvpUnknown(&goi, nvp_assert, 1);
                        return e;
                }
                /* the halt or not param */
-               e = Jim_GetOpt_Wide( &goi, &a);
-               if ( e != JIM_OK ){
+               e = Jim_GetOpt_Wide(&goi, &a);
+               if (e != JIM_OK) {
                        return e;
                }
                if (!target->tap->enabled)
                        goto err_tap_disabled;
+               if (!target->type->assert_reset
+                               || !target->type->deassert_reset) {
+                       Jim_SetResult_sprintf(interp,
+                                       "No target-specific reset for %s",
+                                       target->cmd_name);
+                       return JIM_ERR;
+               }
                /* determine if we should halt or not. */
                target->reset_halt = !!a;
                /* When this happens - all workareas are invalid. */
                target_free_all_working_areas_restore(target, 0);
 
                /* do the assert */
-               if ( n->value == NVP_ASSERT ){
-                       target->type->assert_reset( target );
+               if (n->value == NVP_ASSERT) {
+                       e = target->type->assert_reset(target);
                } else {
-                       target->type->deassert_reset( target );
+                       e = target->type->deassert_reset(target);
                }
-               return JIM_OK;
+               return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
        case TS_CMD_HALT:
-               if ( goi.argc ){
-                       Jim_WrongNumArgs( goi.interp, 0, argv, "halt [no parameters]");
+               if (goi.argc) {
+                       Jim_WrongNumArgs(goi.interp, 0, argv, "halt [no parameters]");
                        return JIM_ERR;
                }
                if (!target->tap->enabled)
                        goto err_tap_disabled;
-               target->type->halt( target );
-               return JIM_OK;
+               e = target->type->halt(target);
+               return (e == ERROR_OK) ? JIM_OK : JIM_ERR;
        case TS_CMD_WAITSTATE:
                /* params:  <name>  statename timeoutmsecs */
-               if ( goi.argc != 2 ){
-                       Jim_SetResult_sprintf( goi.interp, "%s STATENAME TIMEOUTMSECS", n->name );
+               if (goi.argc != 2) {
+                       Jim_SetResult_sprintf(goi.interp, "%s STATENAME TIMEOUTMSECS", n->name);
                        return JIM_ERR;
                }
-               e = Jim_GetOpt_Nvp( &goi, nvp_target_state, &n );
-               if ( e != JIM_OK ){
-                       Jim_GetOpt_NvpUnknown( &goi, nvp_target_state,1 );
+               e = Jim_GetOpt_Nvp(&goi, nvp_target_state, &n);
+               if (e != JIM_OK) {
+                       Jim_GetOpt_NvpUnknown(&goi, nvp_target_state,1);
                        return e;
                }
-               e = Jim_GetOpt_Wide( &goi, &a );
-               if ( e != JIM_OK ){
+               e = Jim_GetOpt_Wide(&goi, &a);
+               if (e != JIM_OK) {
                        return e;
                }
                if (!target->tap->enabled)
                        goto err_tap_disabled;
-               e = target_wait_state( target, n->value, a );
-               if ( e != ERROR_OK ){
-                       Jim_SetResult_sprintf( goi.interp,
+               e = target_wait_state(target, n->value, a);
+               if (e != ERROR_OK) {
+                       Jim_SetResult_sprintf(goi.interp,
                                                                   "target: %s wait %s fails (%d) %s",
                                                                   target->cmd_name,
                                                                   n->name,
-                                                                  e, target_strerror_safe(e) );
+                                                                  e, target_strerror_safe(e));
                        return JIM_ERR;
                } else {
                        return JIM_OK;
@@ -4058,40 +4185,41 @@ static int tcl_target_func( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
                {
                        target_event_action_t *teap;
                        teap = target->event_action;
-                       command_print( cmd_ctx, "Event actions for target (%d) %s\n",
+                       command_print(cmd_ctx, "Event actions for target (%d) %s\n",
                                                   target->target_number,
-                                                  target->cmd_name );
-                       command_print( cmd_ctx, "%-25s | Body", "Event");
-                       command_print( cmd_ctx, "------------------------- | ----------------------------------------");
-                       while ( teap ){
-                               command_print( cmd_ctx,
+                                                  target->cmd_name);
+                       command_print(cmd_ctx, "%-25s | Body", "Event");
+                       command_print(cmd_ctx, "------------------------- | ----------------------------------------");
+                       while (teap) {
+                               command_print(cmd_ctx,
                                                           "%-25s | %s",
-                                                          Jim_Nvp_value2name_simple( nvp_target_event, teap->event )->name,
-                                                          Jim_GetString( teap->body, NULL ) );
+                                                          Jim_Nvp_value2name_simple(nvp_target_event, teap->event)->name,
+                                                          Jim_GetString(teap->body, NULL));
                                teap = teap->next;
                        }
-                       command_print( cmd_ctx, "***END***");
+                       command_print(cmd_ctx, "***END***");
                        return JIM_OK;
                }
        case TS_CMD_CURSTATE:
-               if ( goi.argc != 0 ){
-                       Jim_WrongNumArgs( goi.interp, 0, argv, "[no parameters]");
+               if (goi.argc != 0) {
+                       Jim_WrongNumArgs(goi.interp, 0, argv, "[no parameters]");
                        return JIM_ERR;
                }
-               Jim_SetResultString( goi.interp,
-                                                        Jim_Nvp_value2name_simple(nvp_target_state,target->state)->name,-1);
+               Jim_SetResultString(goi.interp,
+                                                       target_state_name( target ),
+                                                       -1);
                return JIM_OK;
        case TS_CMD_INVOKE_EVENT:
-               if ( goi.argc != 1 ){
-                       Jim_SetResult_sprintf( goi.interp, "%s ?EVENTNAME?",n->name);
+               if (goi.argc != 1) {
+                       Jim_SetResult_sprintf(goi.interp, "%s ?EVENTNAME?",n->name);
                        return JIM_ERR;
                }
-               e = Jim_GetOpt_Nvp( &goi, nvp_target_event, &n );
-               if ( e != JIM_OK ){
-                       Jim_GetOpt_NvpUnknown( &goi, nvp_target_event, 1 );
+               e = Jim_GetOpt_Nvp(&goi, nvp_target_event, &n);
+               if (e != JIM_OK) {
+                       Jim_GetOpt_NvpUnknown(&goi, nvp_target_event, 1);
                        return e;
                }
-               target_handle_event( target, n->value );
+               target_handle_event(target, n->value);
                return JIM_OK;
        }
        return JIM_ERR;
@@ -4101,7 +4229,7 @@ err_tap_disabled:
        return JIM_ERR;
 }
 
-static int target_create( Jim_GetOptInfo *goi )
+static int target_create(Jim_GetOptInfo *goi)
 {
        Jim_Obj *new_cmd;
        Jim_Cmd *cmd;
@@ -4113,44 +4241,44 @@ static int target_create( Jim_GetOptInfo *goi )
        struct command_context_s *cmd_ctx;
 
        cmd_ctx = Jim_GetAssocData(goi->interp, "context");
-       if ( goi->argc < 3 ){
-               Jim_WrongNumArgs( goi->interp, 1, goi->argv, "?name? ?type? ..options...");
+       if (goi->argc < 3) {
+               Jim_WrongNumArgs(goi->interp, 1, goi->argv, "?name? ?type? ..options...");
                return JIM_ERR;
        }
 
        /* COMMAND */
-       Jim_GetOpt_Obj( goi, &new_cmd );
+       Jim_GetOpt_Obj(goi, &new_cmd);
        /* does this command exist? */
-       cmd = Jim_GetCommand( goi->interp, new_cmd, JIM_ERRMSG );
-       if ( cmd ){
-               cp = Jim_GetString( new_cmd, NULL );
+       cmd = Jim_GetCommand(goi->interp, new_cmd, JIM_ERRMSG);
+       if (cmd) {
+               cp = Jim_GetString(new_cmd, NULL);
                Jim_SetResult_sprintf(goi->interp, "Command/target: %s Exists", cp);
                return JIM_ERR;
        }
 
        /* TYPE */
-       e = Jim_GetOpt_String( goi, &cp2, NULL );
+       e = Jim_GetOpt_String(goi, &cp2, NULL);
        cp = cp2;
        /* now does target type exist */
-       for ( x = 0 ; target_types[x] ; x++ ){
-               if ( 0 == strcmp( cp, target_types[x]->name ) ){
+       for (x = 0 ; target_types[x] ; x++) {
+               if (0 == strcmp(cp, target_types[x]->name)) {
                        /* found */
                        break;
                }
        }
-       if ( target_types[x] == NULL ){
-               Jim_SetResult_sprintf( goi->interp, "Unknown target type %s, try one of ", cp );
-               for ( x = 0 ; target_types[x] ; x++ ){
-                       if ( target_types[x+1] ){
-                               Jim_AppendStrings( goi->interp,
+       if (target_types[x] == NULL) {
+               Jim_SetResult_sprintf(goi->interp, "Unknown target type %s, try one of ", cp);
+               for (x = 0 ; target_types[x] ; x++) {
+                       if (target_types[x + 1]) {
+                               Jim_AppendStrings(goi->interp,
                                                                   Jim_GetResult(goi->interp),
                                                                   target_types[x]->name,
                                                                   ", ", NULL);
                        } else {
-                               Jim_AppendStrings( goi->interp,
+                               Jim_AppendStrings(goi->interp,
                                                                   Jim_GetResult(goi->interp),
                                                                   " or ",
-                                                                  target_types[x]->name,NULL );
+                                                                  target_types[x]->name,NULL);
                        }
                }
                return JIM_ERR;
@@ -4164,7 +4292,7 @@ static int target_create( Jim_GetOptInfo *goi )
        /* allocate memory for each unique target type */
        target->type = (target_type_t*)calloc(1,sizeof(target_type_t));
 
-       memcpy( target->type, target_types[x], sizeof(target_type_t));
+       memcpy(target->type, target_types[x], sizeof(target_type_t));
 
        /* will be set by "-endian" */
        target->endianness = TARGET_ENDIAN_UNKNOWN;
@@ -4184,6 +4312,8 @@ static int target_create( Jim_GetOptInfo *goi )
 
        target->display             = 1;
 
+       target->halt_issued                     = false;
+
        /* initialize trace information */
        target->trace_info = malloc(sizeof(trace_t));
        target->trace_info->num_trace_points         = 0;
@@ -4201,21 +4331,21 @@ static int target_create( Jim_GetOptInfo *goi )
 
        /* Do the rest as "configure" options */
        goi->isconfigure = 1;
-       e = target_configure( goi, target);
+       e = target_configure(goi, target);
 
        if (target->tap == NULL)
        {
-               Jim_SetResultString( interp, "-chain-position required when creating target", -1);
-               e=JIM_ERR;
+               Jim_SetResultString(interp, "-chain-position required when creating target", -1);
+               e = JIM_ERR;
        }
 
-       if ( e != JIM_OK ){
-               free( target->type );
-               free( target );
+       if (e != JIM_OK) {
+               free(target->type);
+               free(target);
                return e;
        }
 
-       if ( target->endianness == TARGET_ENDIAN_UNKNOWN ){
+       if (target->endianness == TARGET_ENDIAN_UNKNOWN) {
                /* default endian to little if not specified */
                target->endianness = TARGET_LITTLE_ENDIAN;
        }
@@ -4225,38 +4355,38 @@ static int target_create( Jim_GetOptInfo *goi )
                target->variant = strdup("");
 
        /* create the target specific commands */
-       if ( target->type->register_commands ){
-               (*(target->type->register_commands))( cmd_ctx );
+       if (target->type->register_commands) {
+               (*(target->type->register_commands))(cmd_ctx);
        }
-       if ( target->type->target_create ){
-               (*(target->type->target_create))( target, goi->interp );
+       if (target->type->target_create) {
+               (*(target->type->target_create))(target, goi->interp);
        }
 
        /* append to end of list */
        {
                target_t **tpp;
                tpp = &(all_targets);
-               while ( *tpp ){
-                       tpp = &( (*tpp)->next );
+               while (*tpp) {
+                       tpp = &((*tpp)->next);
                }
                *tpp = target;
        }
 
-       cp = Jim_GetString( new_cmd, NULL );
+       cp = Jim_GetString(new_cmd, NULL);
        target->cmd_name = strdup(cp);
 
        /* now - create the new target name command */
-       e = Jim_CreateCommand( goi->interp,
+       e = Jim_CreateCommand(goi->interp,
                                                   /* name */
                                                   cp,
                                                   tcl_target_func, /* C function */
                                                   target, /* private data */
-                                                  NULL ); /* no del proc */
+                                                  NULL); /* no del proc */
 
        return e;
 }
 
-static int jim_target( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
+static int jim_target(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
 {
        int x,r,e;
        jim_wide w;
@@ -4281,91 +4411,95 @@ static int jim_target( Jim_Interp *interp, int argc, Jim_Obj *const *argv )
        LOG_DEBUG("Target command params:");
        LOG_DEBUG("%s", Jim_Debug_ArgvString(interp, argc, argv));
 
-       cmd_ctx = Jim_GetAssocData( interp, "context" );
+       cmd_ctx = Jim_GetAssocData(interp, "context");
 
-       Jim_GetOpt_Setup( &goi, interp, argc-1, argv+1 );
+       Jim_GetOpt_Setup(&goi, interp, argc-1, argv + 1);
 
-       if ( goi.argc == 0 ){
+       if (goi.argc == 0) {
                Jim_WrongNumArgs(interp, 1, argv, "missing: command ...");
                return JIM_ERR;
        }
 
-       /* Jim_GetOpt_Debug( &goi ); */
-       r = Jim_GetOpt_Enum( &goi, target_cmds, &x   );
-       if ( r != JIM_OK ){
+       /* Jim_GetOpt_Debug(&goi); */
+       r = Jim_GetOpt_Enum(&goi, target_cmds, &x);
+       if (r != JIM_OK) {
                return r;
        }
 
-       switch (x){
+       switch (x) {
        default:
                Jim_Panic(goi.interp,"Why am I here?");
                return JIM_ERR;
        case TG_CMD_CURRENT:
-               if ( goi.argc != 0 ){
-                       Jim_WrongNumArgs( goi.interp, 1, goi.argv, "Too many parameters");
+               if (goi.argc != 0) {
+                       Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
                        return JIM_ERR;
                }
-               Jim_SetResultString( goi.interp, get_current_target( cmd_ctx )->cmd_name, -1 );
+               Jim_SetResultString(goi.interp, get_current_target(cmd_ctx)->cmd_name, -1);
                return JIM_OK;
        case TG_CMD_TYPES:
-               if ( goi.argc != 0 ){
-                       Jim_WrongNumArgs( goi.interp, 1, goi.argv, "Too many parameters" );
+               if (goi.argc != 0) {
+                       Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
                        return JIM_ERR;
                }
-               Jim_SetResult( goi.interp, Jim_NewListObj( goi.interp, NULL, 0 ) );
-               for ( x = 0 ; target_types[x] ; x++ ){
-                       Jim_ListAppendElement( goi.interp,
+               Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
+               for (x = 0 ; target_types[x] ; x++) {
+                       Jim_ListAppendElement(goi.interp,
                                                                   Jim_GetResult(goi.interp),
-                                                                  Jim_NewStringObj( goi.interp, target_types[x]->name, -1 ) );
+                                                                  Jim_NewStringObj(goi.interp, target_types[x]->name, -1));
                }
                return JIM_OK;
        case TG_CMD_NAMES:
-               if ( goi.argc != 0 ){
-                       Jim_WrongNumArgs( goi.interp, 1, goi.argv, "Too many parameters" );
+               if (goi.argc != 0) {
+                       Jim_WrongNumArgs(goi.interp, 1, goi.argv, "Too many parameters");
                        return JIM_ERR;
                }
-               Jim_SetResult( goi.interp, Jim_NewListObj( goi.interp, NULL, 0 ) );
+               Jim_SetResult(goi.interp, Jim_NewListObj(goi.interp, NULL, 0));
                target = all_targets;
-               while ( target ){
-                       Jim_ListAppendElement( goi.interp,
+               while (target) {
+                       Jim_ListAppendElement(goi.interp,
                                                                   Jim_GetResult(goi.interp),
-                                                                  Jim_NewStringObj( goi.interp, target->cmd_name, -1 ) );
+                                                                  Jim_NewStringObj(goi.interp, target->cmd_name, -1));
                        target = target->next;
                }
                return JIM_OK;
        case TG_CMD_CREATE:
-               if ( goi.argc < 3 ){
-                       Jim_WrongNumArgs( goi.interp, goi.argc, goi.argv, "?name  ... config options ...");
+               if (goi.argc < 3) {
+                       Jim_WrongNumArgs(goi.interp, goi.argc, goi.argv, "?name  ... config options ...");
                        return JIM_ERR;
                }
-               return target_create( &goi );
+               return target_create(&goi);
                break;
        case TG_CMD_NUMBER:
-               if ( goi.argc != 1 ){
-                       Jim_SetResult_sprintf( goi.interp, "expected: target number ?NUMBER?");
+               /* It's OK to remove this mechanism sometime after August 2010 or so */
+               LOG_WARNING("don't use numbers as target identifiers; use names");
+               if (goi.argc != 1) {
+                       Jim_SetResult_sprintf(goi.interp, "expected: target number ?NUMBER?");
                        return JIM_ERR;
                }
-               e = Jim_GetOpt_Wide( &goi, &w );
-               if ( e != JIM_OK ){
+               e = Jim_GetOpt_Wide(&goi, &w);
+               if (e != JIM_OK) {
                        return JIM_ERR;
                }
-               {
-                       target_t *t;
-                       t = get_target_by_num(w);
-                       if ( t == NULL ){
-                               Jim_SetResult_sprintf( goi.interp,"Target: number %d does not exist", (int)(w));
-                               return JIM_ERR;
-                       }
-                       Jim_SetResultString( goi.interp, t->cmd_name, -1 );
-                       return JIM_OK;
+               for (x = 0, target = all_targets; target; target = target->next, x++) {
+                       if (target->target_number == w)
+                               break;
+               }
+               if (target == NULL) {
+                       Jim_SetResult_sprintf(goi.interp,
+                                       "Target: number %d does not exist", (int)(w));
+                       return JIM_ERR;
                }
+               Jim_SetResultString(goi.interp, target->cmd_name, -1);
+               return JIM_OK;
        case TG_CMD_COUNT:
-               if ( goi.argc != 0 ){
-                       Jim_WrongNumArgs( goi.interp, 0, goi.argv, "<no parameters>");
+               if (goi.argc != 0) {
+                       Jim_WrongNumArgs(goi.interp, 0, goi.argv, "<no parameters>");
                        return JIM_ERR;
                }
-               Jim_SetResult( goi.interp,
-                                          Jim_NewIntObj( goi.interp, max_target_number()));
+               for (x = 0, target = all_targets; target; target = target->next, x++)
+                       continue;
+               Jim_SetResult(goi.interp, Jim_NewIntObj(goi.interp, x));
                return JIM_OK;
        }
 
@@ -4389,39 +4523,37 @@ static void free_fastload(void)
        if (fastload != NULL)
        {
                int i;
-               for (i=0; i<fastload_num; i++)
+               for (i = 0; i < fastload_num; i++)
                {
                        if (fastload[i].data)
                                free(fastload[i].data);
                }
                free(fastload);
-               fastload=NULL;
+               fastload = NULL;
        }
 }
 
 
 
 
-static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_fast_load_image_command)
 {
        uint8_t *buffer;
        uint32_t buf_cnt;
        uint32_t image_size;
-       uint32_t min_address=0;
-       uint32_t max_address=0xffffffff;
+       uint32_t min_address = 0;
+       uint32_t max_address = 0xffffffff;
        int i;
 
        image_t image;
 
-       duration_t duration;
-       char *duration_text;
-
-       int retval = parse_load_image_command_args(args, argc,
+       int retval = CALL_COMMAND_HANDLER(parse_load_image_command_args,
                        &image, &min_address, &max_address);
        if (ERROR_OK != retval)
                return retval;
 
-       duration_start_measure(&duration);
+       struct duration bench;
+       duration_start(&bench);
 
        if (image_open(&image, args[0], (argc >= 3) ? args[2] : NULL) != ERROR_OK)
        {
@@ -4430,8 +4562,8 @@ static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, cha
 
        image_size = 0x0;
        retval = ERROR_OK;
-       fastload_num=image.num_sections;
-       fastload=(struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
+       fastload_num = image.num_sections;
+       fastload = (struct FastLoad *)malloc(sizeof(struct FastLoad)*image.num_sections);
        if (fastload == NULL)
        {
                image_close(&image);
@@ -4443,7 +4575,7 @@ static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, cha
                buffer = malloc(image.sections[i].size);
                if (buffer == NULL)
                {
-                       command_print(cmd_ctx, "error allocating buffer for section (%d bytes)", 
+                       command_print(cmd_ctx, "error allocating buffer for section (%d bytes)",
                                                  (int)(image.sections[i].size));
                        break;
                }
@@ -4454,53 +4586,56 @@ static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, cha
                        break;
                }
 
-               uint32_t offset=0;
-               uint32_t length=buf_cnt;
+               uint32_t offset = 0;
+               uint32_t length = buf_cnt;
 
 
                /* DANGER!!! beware of unsigned comparision here!!! */
 
-               if ((image.sections[i].base_address+buf_cnt >= min_address)&&
-                               (image.sections[i].base_address<max_address))
+               if ((image.sections[i].base_address + buf_cnt >= min_address)&&
+                               (image.sections[i].base_address < max_address))
                {
-                       if (image.sections[i].base_address<min_address)
+                       if (image.sections[i].base_address < min_address)
                        {
                                /* clip addresses below */
                                offset += min_address-image.sections[i].base_address;
                                length -= offset;
                        }
 
-                       if (image.sections[i].base_address+buf_cnt>max_address)
+                       if (image.sections[i].base_address + buf_cnt > max_address)
                        {
-                               length -= (image.sections[i].base_address+buf_cnt)-max_address;
+                               length -= (image.sections[i].base_address + buf_cnt)-max_address;
                        }
 
-                       fastload[i].address=image.sections[i].base_address+offset;
-                       fastload[i].data=malloc(length);
+                       fastload[i].address = image.sections[i].base_address + offset;
+                       fastload[i].data = malloc(length);
                        if (fastload[i].data == NULL)
                        {
                                free(buffer);
                                break;
                        }
-                       memcpy(fastload[i].data, buffer+offset, length);
-                       fastload[i].length=length;
+                       memcpy(fastload[i].data, buffer + offset, length);
+                       fastload[i].length = length;
 
                        image_size += length;
-                       command_print(cmd_ctx, "%u byte written at address 0x%8.8x", 
-                                                 (unsigned int)length, 
-                                                 ((unsigned int)(image.sections[i].base_address+offset)));
+                       command_print(cmd_ctx, "%u bytes written at address 0x%8.8x",
+                                                 (unsigned int)length,
+                                                 ((unsigned int)(image.sections[i].base_address + offset)));
                }
 
                free(buffer);
        }
 
-       duration_stop_measure(&duration, &duration_text);
-       if (retval == ERROR_OK)
+       if ((ERROR_OK == retval) && (duration_measure(&bench) == ERROR_OK))
        {
-               command_print(cmd_ctx, "Loaded %u bytes in %s", (unsigned int)image_size, duration_text);
-               command_print(cmd_ctx, "NB!!! image has not been loaded to target, issue a subsequent 'fast_load' to do so.");
+               command_print(cmd_ctx, "Loaded %" PRIu32 " bytes "
+                               "in %fs (%0.3f kb/s)", image_size, 
+                               duration_elapsed(&bench), duration_kbps(&bench, image_size));
+
+               command_print(cmd_ctx,
+                               "WARNING: image has not been loaded to target!"
+                               "You can issue a 'fast_load' to finish loading.");
        }
-       free(duration_text);
 
        image_close(&image);
 
@@ -4512,9 +4647,9 @@ static int handle_fast_load_image_command(struct command_context_s *cmd_ctx, cha
        return retval;
 }
 
-static int handle_fast_load_command(struct command_context_s *cmd_ctx, char *cmd, char **args, int argc)
+COMMAND_HANDLER(handle_fast_load_command)
 {
-       if (argc>0)
+       if (argc > 0)
                return ERROR_COMMAND_SYNTAX_ERROR;
        if (fastload == NULL)
        {
@@ -4522,14 +4657,14 @@ static int handle_fast_load_command(struct command_context_s *cmd_ctx, char *cmd
                return ERROR_FAIL;
        }
        int i;
-       int ms=timeval_ms();
-       int size=0;
-       int retval=ERROR_OK;
-       for (i=0; i<fastload_num;i++)
+       int ms = timeval_ms();
+       int size = 0;
+       int retval = ERROR_OK;
+       for (i = 0; i < fastload_num;i++)
        {
                target_t *target = get_current_target(cmd_ctx);
-               command_print(cmd_ctx, "Write to 0x%08x, length 0x%08x", 
-                                         (unsigned int)(fastload[i].address), 
+               command_print(cmd_ctx, "Write to 0x%08x, length 0x%08x",
+                                         (unsigned int)(fastload[i].address),
                                          (unsigned int)(fastload[i].length));
                if (retval == ERROR_OK)
                {
@@ -4537,15 +4672,221 @@ static int handle_fast_load_command(struct command_context_s *cmd_ctx, char *cmd
                }
                size += fastload[i].length;
        }
-       int after=timeval_ms();
+       int after = timeval_ms();
        command_print(cmd_ctx, "Loaded image %f kBytes/s", (float)(size/1024.0)/((float)(after-ms)/1000.0));
        return retval;
 }
 
+static int jim_mcrmrc(Jim_Interp *interp, int argc, Jim_Obj *const *argv)
+{
+       command_context_t *context;
+       target_t *target;
+       int retval;
 
-/*
- * Local Variables: 
- * c-basic-offset: 4
- * tab-width: 4
- * End:
- */
+       context = Jim_GetAssocData(interp, "context");
+       if (context == NULL) {
+               LOG_ERROR("array2mem: no command context");
+               return JIM_ERR;
+       }
+       target = get_current_target(context);
+       if (target == NULL) {
+               LOG_ERROR("array2mem: no current target");
+               return JIM_ERR;
+       }
+
+       if ((argc < 6) || (argc > 7))
+       {
+               return JIM_ERR;
+       }
+
+       int cpnum;
+       uint32_t op1;
+       uint32_t op2;
+       uint32_t CRn;
+       uint32_t CRm;
+       uint32_t value;
+
+       int e;
+       long l;
+       e = Jim_GetLong(interp, argv[1], &l);
+       if (e != JIM_OK) {
+               return e;
+       }
+       cpnum = l;
+
+       e = Jim_GetLong(interp, argv[2], &l);
+       if (e != JIM_OK) {
+               return e;
+       }
+       op1 = l;
+
+       e = Jim_GetLong(interp, argv[3], &l);
+       if (e != JIM_OK) {
+               return e;
+       }
+       CRn = l;
+
+       e = Jim_GetLong(interp, argv[4], &l);
+       if (e != JIM_OK) {
+               return e;
+       }
+       CRm = l;
+
+       e = Jim_GetLong(interp, argv[5], &l);
+       if (e != JIM_OK) {
+               return e;
+       }
+       op2 = l;
+
+       value = 0;
+
+       if (argc == 7)
+       {
+               e = Jim_GetLong(interp, argv[6], &l);
+               if (e != JIM_OK) {
+                       return e;
+               }
+               value = l;
+
+               retval = target_mcr(target, cpnum, op1, op2, CRn, CRm, value);
+               if (retval != ERROR_OK)
+                       return JIM_ERR;
+       } else
+       {
+               retval = target_mrc(target, cpnum, op1, op2, CRn, CRm, &value);
+               if (retval != ERROR_OK)
+                       return JIM_ERR;
+
+               Jim_SetResult(interp, Jim_NewIntObj(interp, value));
+       }
+
+       return JIM_OK;
+}
+
+int target_register_commands(struct command_context_s *cmd_ctx)
+{
+
+       register_command(cmd_ctx, NULL, "targets",
+                       handle_targets_command, COMMAND_EXEC,
+                       "change current command line target (one parameter) "
+                       "or list targets (no parameters)");
+
+       register_jim(cmd_ctx, "target", jim_target, "configure target");
+
+       return ERROR_OK;
+}
+
+int target_register_user_commands(struct command_context_s *cmd_ctx)
+{
+       int retval = ERROR_OK;
+       if ((retval = target_request_register_commands(cmd_ctx)) != ERROR_OK)
+               return retval;
+
+       if ((retval = trace_register_commands(cmd_ctx)) != ERROR_OK)
+               return retval;
+
+       register_command(cmd_ctx, NULL, "profile",
+                       handle_profile_command, COMMAND_EXEC,
+                       "profiling samples the CPU PC");
+
+       register_jim(cmd_ctx, "ocd_mem2array", jim_mem2array,
+                       "read memory and return as a TCL array for script processing "
+                       "<ARRAYNAME> <WIDTH = 32/16/8> <ADDRESS> <COUNT>");
+
+       register_jim(cmd_ctx, "ocd_array2mem", jim_array2mem,
+                       "convert a TCL array to memory locations and write the values "
+                       "<ARRAYNAME> <WIDTH = 32/16/8> <ADDRESS> <COUNT>");
+
+       register_command(cmd_ctx, NULL, "fast_load_image",
+                       handle_fast_load_image_command, COMMAND_ANY,
+                       "same args as load_image, image stored in memory "
+                       "- mainly for profiling purposes");
+
+       register_command(cmd_ctx, NULL, "fast_load",
+                       handle_fast_load_command, COMMAND_ANY,
+                       "loads active fast load image to current target "
+                       "- mainly for profiling purposes");
+
+       /** @todo don't register virt2phys() unless target supports it */
+       register_command(cmd_ctx, NULL, "virt2phys",
+                       handle_virt2phys_command, COMMAND_ANY,
+                       "translate a virtual address into a physical address");
+
+       register_command(cmd_ctx,  NULL, "reg",
+                       handle_reg_command, COMMAND_EXEC,
+                       "display or set a register");
+
+       register_command(cmd_ctx,  NULL, "poll",
+                       handle_poll_command, COMMAND_EXEC,
+                       "poll target state");
+       register_command(cmd_ctx,  NULL, "wait_halt",
+                       handle_wait_halt_command, COMMAND_EXEC,
+                       "wait for target halt [time (s)]");
+       register_command(cmd_ctx,  NULL, "halt",
+                       handle_halt_command, COMMAND_EXEC,
+                       "halt target");
+       register_command(cmd_ctx,  NULL, "resume",
+                       handle_resume_command, COMMAND_EXEC,
+                       "resume target [addr]");
+       register_command(cmd_ctx,  NULL, "reset",
+                       handle_reset_command, COMMAND_EXEC,
+                       "reset target [run | halt | init] - default is run");
+       register_command(cmd_ctx,  NULL, "soft_reset_halt",
+                       handle_soft_reset_halt_command, COMMAND_EXEC,
+                       "halt the target and do a soft reset");
+
+       register_command(cmd_ctx,  NULL, "step",
+                       handle_step_command, COMMAND_EXEC,
+                       "step one instruction from current PC or [addr]");
+
+       register_command(cmd_ctx,  NULL, "mdw",
+                       handle_md_command, COMMAND_EXEC,
+                       "display memory words [phys] <addr> [count]");
+       register_command(cmd_ctx,  NULL, "mdh",
+                       handle_md_command, COMMAND_EXEC,
+                       "display memory half-words [phys] <addr> [count]");
+       register_command(cmd_ctx,  NULL, "mdb",
+                       handle_md_command, COMMAND_EXEC,
+                       "display memory bytes [phys] <addr> [count]");
+
+       register_command(cmd_ctx,  NULL, "mww",
+                       handle_mw_command, COMMAND_EXEC,
+                       "write memory word [phys]  <addr> <value> [count]");
+       register_command(cmd_ctx,  NULL, "mwh",
+                       handle_mw_command, COMMAND_EXEC,
+                       "write memory half-word [phys]  <addr> <value> [count]");
+       register_command(cmd_ctx,  NULL, "mwb",
+                       handle_mw_command, COMMAND_EXEC,
+                       "write memory byte [phys] <addr> <value> [count]");
+
+       register_command(cmd_ctx,  NULL, "bp",
+                       handle_bp_command, COMMAND_EXEC,
+                       "list or set breakpoint [<address> <length> [hw]]");
+       register_command(cmd_ctx,  NULL, "rbp",
+                       handle_rbp_command, COMMAND_EXEC,
+                       "remove breakpoint <address>");
+
+       register_command(cmd_ctx,  NULL, "wp",
+                       handle_wp_command, COMMAND_EXEC,
+                       "list or set watchpoint "
+                               "[<address> <length> <r/w/a> [value] [mask]]");
+       register_command(cmd_ctx,  NULL, "rwp",
+                       handle_rwp_command, COMMAND_EXEC,
+                       "remove watchpoint <address>");
+
+       register_command(cmd_ctx,  NULL, "load_image",
+                       handle_load_image_command, COMMAND_EXEC,
+                       "load_image <file> <address> "
+                       "['bin'|'ihex'|'elf'|'s19'] [min_address] [max_length]");
+       register_command(cmd_ctx,  NULL, "dump_image",
+                       handle_dump_image_command, COMMAND_EXEC,
+                       "dump_image <file> <address> <size>");
+       register_command(cmd_ctx,  NULL, "verify_image",
+                       handle_verify_image_command, COMMAND_EXEC,
+                       "verify_image <file> [offset] [type]");
+       register_command(cmd_ctx,  NULL, "test_image",
+                       handle_test_image_command, COMMAND_EXEC,
+                       "test_image <file> [offset] [type]");
+
+       return ERROR_OK;
+}