X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=tcl%2Fmem_helper.tcl;h=0229d54b783ac606556a405bb0ef8acbd0481631;hb=5ffc745ea39393d2fc2772bf11e996e237463004;hp=a3d92cb82deee70cfe551cda334ca12b543ad108;hpb=ecad76061f6edff5db67ad05e6514dff6cd6efc7;p=fw%2Fopenocd

diff --git a/tcl/mem_helper.tcl b/tcl/mem_helper.tcl
index a3d92cb82..0229d54b7 100644
--- a/tcl/mem_helper.tcl
+++ b/tcl/mem_helper.tcl
@@ -1,20 +1,36 @@
+# SPDX-License-Identifier: GPL-2.0-or-later
+
 # 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)
+	return [read_memory $reg 32 1]
 }
 
 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} {
+	return [read_memory $reg 16 1]
+}
+
+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} {
+	return [read_memory $reg 8 1]
+}
+
+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} {
 	set old [mrw $reg]
-	set new [expr ($old & ~$clearbits) | $setbits]
+	set new [expr {($old & ~$clearbits) | $setbits}]
 	mww $reg $new
 }