> compile NEMU

ysyx_22040000 李心杨
Linux calcite 6.1.71 #1-NixOS SMP PREEMPT_DYNAMIC Fri Jan  5 14:18:41 UTC 2024 x86_64 GNU/Linux
 16:27:37  up 2 days  5:22,  2 users,  load average: 0.21, 0.59, 0.70

nemu/src/monitor/sdb/addrexp.l

@@ -5,6 +5,7 @@
 
 %%
 
+$[a-zA-Z]         { }
 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; }

nemu/src/monitor/sdb/addrexp.y

@@ -14,6 +14,7 @@
 %}
 
 %token NUMBER HEX_NUMBER
+%token REGISTER
 %start input
 %define api.value.type { word_t }
 %parse-param { uint32_t *result }

nemu/src/monitor/sdb/sdb.h

@@ -18,4 +18,19 @@
 
 #include <common.h>
 
+enum ExprType {
+  EXPR_TYPE_MEM_ADDR,
+  EXPR_TYPE_REG
+};
+
+union ExprValue {
+  word_t addr;
+  word_t *reg;
+};
+
+typedef struct ExprResult {
+  union ExprValue val;
+  enum ExprType type;
+} ExprResult;
+
 #endif

nemu/src/monitor/sdb/watchpoint.c

@@ -97,8 +97,12 @@ int wp_remove_by_number(int number) {
   return 0;
 }
 
-// int wp_eval_all(char *) {
+int wp_eval_all() {
+  WP *wp;
+  for (wp = head; wp != NULL; wp = wp->next) {
     
-// }
+  }
+  return 0;
+}
 
 /* TODO: Implement the functionality of watchpoint */