From 370dc66f05227c70d2dedf4a46823d2164ed34fe Mon Sep 17 00:00:00 2001
From: tracer-ysyx <tracer@ysyx.org>
Date: Mon, 15 Jan 2024 23:04:10 +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=2023:04:10=20=20up=202=20day?=
 =?UTF-8?q?s=2011:59,=20=202=20users,=20=20load=20average:=200.39,=200.40,?=
 =?UTF-8?q?=200.38?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 nemu/src/monitor/sdb/addrexp.l | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/nemu/src/monitor/sdb/addrexp.l b/nemu/src/monitor/sdb/addrexp.l
index 53cf666..9d6b263 100644
--- a/nemu/src/monitor/sdb/addrexp.l
+++ b/nemu/src/monitor/sdb/addrexp.l
@@ -7,7 +7,13 @@
 
 %%
 
-\$[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) {
+        printf("YYTEXT: %s", yytext);
+        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; }