From: Steven Stallion <stallion@squareup.com>
Date: Tue, 27 Nov 2018 02:01:34 +0000 (-0600)
Subject: mem_helper: add mrh command
X-Git-Tag: v0.11.0-rc1~940
X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=commitdiff_plain;h=82dd17e2488ae233d8818901ec6f07525694e55e

mem_helper: add mrh command

This patch adds support for reading halfword values from memory. This
command compliments existing support for writing halfwords (mwh).

Change-Id: I8ec628e65c05a7f00aa57e3af0f228eb8bd4d14e
Signed-off-by: Steven Stallion <stallion@squareup.com>
Reviewed-on: http://openocd.zylin.com/4781
Tested-by: jenkins
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
---

diff --git a/tcl/mem_helper.tcl b/tcl/mem_helper.tcl
index 86ad00f7eb..5955793e25 100644
--- a/tcl/mem_helper.tcl
+++ b/tcl/mem_helper.tcl
@@ -10,6 +10,17 @@ proc mrw {reg} {
 add_usage_text mrw "address"
 add_help_text mrw "Returns value of word in memory."
 
+# mrh: "memory read halfword", returns value of $reg
+proc mrh {reg} {
+	set value ""
+	mem2array value 16 $reg 1
+	return $value(0)
+}
+
+add_usage_text mrh "address"
+add_help_text mrh "Returns value of halfword in memory."
+
+# mrb: "memory read byte", returns value of $reg
 proc mrb {reg} {
 	set value ""
 	mem2array value 8 $reg 1