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tcl: add mrb command to mem_helper.tcl 

add "mrb" command to read a byte of memory into a variable

Change-Id: I5ddc9fbcc55958a249548627bd15824df6dc0d61
Signed-off-by: Matthias Welwarsky <matthias.welwarsky@sysgo.com>
Reviewed-on: http://openocd.zylin.com/3542
Tested-by: jenkins
Reviewed-by: Andreas Fritiofson <andreas.fritiofson@gmail.com>
This commit is contained in:
Matthias Welwarsky 2016-07-11 15:23:42 +02:00 committed by Andreas Fritiofson
parent 800fe0b885
commit 7a0473bbb6
1 changed files with 9 additions and 0 deletions
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9
tcl/mem_helper.tcl
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@ -10,6 +10,15 @@ proc mrw {reg} {
add_usage_text mrw "address"
add_help_text mrw "Returns value of word in memory."
proc mrb {reg} {
set value ""
mem2array value 8 $reg 1
return $value(0)
}
add_usage_text mrb "address"
add_help_text mrb "Returns value of byte in memory."
# mmw: "memory modify word", updates value of $reg
# $reg <== ((value & ~$clearbits) | $setbits)
proc mmw {reg setbits clearbits} {