From b4f72c1d578d3ecf9738df8328c07246e8f54a48 Mon Sep 17 00:00:00 2001
From: tracer-ysyx <tracer@ysyx.org>
Date: Mon, 15 Jan 2024 22:48:27 +0800
Subject: [PATCH] =?UTF-8?q?>=20compile=20NEMU=20ysyx=5F22040000=20?=
 =?UTF-8?q?=E6=9D=8E=E5=BF=83=E6=9D=A8=20Linux=20calcite=206.1.71=20#1-Nix?=
 =?UTF-8?q?OS=20SMP=20PREEMPT=5FDYNAMIC=20Fri=20Jan=20=205=2014:18:41=20UT?=
 =?UTF-8?q?C=202024=20x86=5F64=20GNU/Linux=20=2022:48:27=20=20up=202=20day?=
 =?UTF-8?q?s=2011:43,=20=202=20users,=20=20load=20average:=200.35,=200.27,?=
 =?UTF-8?q?=200.37?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nemu/src/monitor/sdb/addrexp.l | 2 +-
 nemu/src/monitor/sdb/addrexp.y | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/nemu/src/monitor/sdb/addrexp.l b/nemu/src/monitor/sdb/addrexp.l
index 3d5c359..095014f 100644
--- a/nemu/src/monitor/sdb/addrexp.l
+++ b/nemu/src/monitor/sdb/addrexp.l
@@ -7,7 +7,7 @@
 
 %%
 
-$?[a-zA-Z]{2,3}  { yylval = isa_reg_str2val(yytext + 1, &success); if(!success) { return YYerror; } }
+$?[a-zA-Z]{2,3}   { yylval = isa_reg_str2val(yytext + 1, &success); if(!success) { return YYerror; } }
 0[xX][0-9a-fA-F]+ { yylval = strtoul(yytext, NULL, 16); return HEX_NUMBER; }
 [0-9]+            { yylval = strtoul(yytext, NULL, 10); return NUMBER; }
 [+\-*/()]         { return *yytext; }
diff --git a/nemu/src/monitor/sdb/addrexp.y b/nemu/src/monitor/sdb/addrexp.y
index 730c497..f0ba851 100644
--- a/nemu/src/monitor/sdb/addrexp.y
+++ b/nemu/src/monitor/sdb/addrexp.y
@@ -47,6 +47,6 @@ number
     | HEX_NUMBER 
 
 register
-    : REGISTER
+    : '$' REGISTER { $$ = $2; }
 
 %%