cfg: add stm320518-eval onboard stlink config

[openocd.git] / tcl / mem_helper.tcl

# Helper for common memory read/modify/write procedures

# mrw: "memory read word", returns value of $reg
proc mrw {reg} {
        set value ""
        mem2array value 32 $reg 1
        return $value(0)
}

add_usage_text mrw "address"
add_help_text mrw "Returns value of word in memory."

# mmw: "memory modify word", updates value of $reg
#       $reg <== ((value & ~$clearbits) | $setbits)
proc mmw {reg setbits clearbits} {
        set old [mrw $reg]
        set new [expr ($old & ~$clearbits) | $setbits]
        mww $reg $new
}

add_usage_text mmw "address setbits clearbits"
add_help_text mmw "Modify word in memory. new_val = (old_val & ~clearbits) | setbits;"