X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Farm_simulator.c;h=b47606d633bb55a20852f50df3ab88881cc45ebc;hp=561b14f8f2c71bbbadf7738a0dcbae2cb0fdff95;hb=45af9d83c90134ec929599bf4a05360e8bd1e8be;hpb=237e894805dd757cc24029af1b4b1e824c51712b

diff --git a/src/target/arm_simulator.c b/src/target/arm_simulator.c
index 561b14f8f2..b47606d633 100644
--- a/src/target/arm_simulator.c
+++ b/src/target/arm_simulator.c
@@ -32,7 +32,7 @@
 
 u32 arm_shift(u8 shift, u32 Rm, u32 shift_amount, u8 *carry)
 {
-	u32 return_value;
+	u32 return_value = 0;
 	shift_amount &= 0xff;
 	
 	if (shift == 0x0) /* LSL */
@@ -269,13 +269,14 @@ int thumb_pass_branch_condition(u32 cpsr, u16 opcode)
 int arm_simulate_step(target_t *target, u32 *dry_run_pc)
 {
 	armv4_5_common_t *armv4_5 = target->arch_info;
-	u32 opcode;
 	u32 current_pc = buf_get_u32(armv4_5->core_cache->reg_list[15].value, 0, 32);
 	arm_instruction_t instruction;
 	int instruction_size;
 	
 	if (armv4_5->core_state == ARMV4_5_STATE_ARM)
 	{
+		u32 opcode;
+		
 		/* get current instruction, and identify it */
 		target_read_u32(target, current_pc, &opcode);
 		arm_evaluate_opcode(opcode, current_pc, &instruction);
@@ -298,8 +299,10 @@ int arm_simulate_step(target_t *target, u32 *dry_run_pc)
 	}
 	else
 	{
-		target_read_u32(target, current_pc, &opcode);
-		arm_evaluate_opcode(opcode, current_pc, &instruction);
+		u16 opcode;
+		
+		target_read_u16(target, current_pc, &opcode);
+		thumb_evaluate_opcode(opcode, current_pc, &instruction);
 		instruction_size = 2;
 		
 		/* check condition code (only for branch instructions) */
@@ -463,7 +466,7 @@ int arm_simulate_step(target_t *target, u32 *dry_run_pc)
 	/* load register instructions */
 	else if ((instruction.type >= ARM_LDR) && (instruction.type <= ARM_LDRSH))
 	{
-		u32 load_address, modified_address, load_value;
+		u32 load_address = 0, modified_address = 0, load_value;
 		u32 Rn = buf_get_u32(ARMV4_5_CORE_REG_MODE(armv4_5->core_cache, armv4_5->core_mode, instruction.info.load_store.Rn).value, 0, 32);
 		
 		/* adjust Rn in case the PC is being read */