X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=tcl%2Fmem_helper.tcl;h=9ea285a22c8ea5736039211337cfa48bd8742d1b;hb=fc74ccda52eced1f7be9fc99f071b0f47a7044ea;hp=a3d92cb82deee70cfe551cda334ca12b543ad108;hpb=ecad76061f6edff5db67ad05e6514dff6cd6efc7;p=fw%2Fopenocd

diff --git a/tcl/mem_helper.tcl b/tcl/mem_helper.tcl
index a3d92cb82..9ea285a22 100644
--- a/tcl/mem_helper.tcl
+++ b/tcl/mem_helper.tcl
@@ -10,11 +10,31 @@ 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
+	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} {
 	set old [mrw $reg]
-	set new [expr ($old & ~$clearbits) | $setbits]
+	set new [expr {($old & ~$clearbits) | $setbits}]
 	mww $reg $new
 }