> compile NEMU

221220000 张三
Linux zzy 5.15.146.1-microsoft-standard-WSL2 #1 SMP Thu Jan 11 04:09:03 UTC 2024 x86_64 x86_64 x86_64 GNU/Linux
 17:10:02 up 19:35,  2 users,  load average: 0.61, 0.33, 0.22

nemu/src/monitor/sdb/sdb.c

@@ -174,7 +174,8 @@ int test_expr() {
   uint32_t expect, res;
   char buf[65536] = {0};
   if (scanf("%"PRIu32" %s", &expect, buf));
-  res = expr(buf, NULL);
+  bool success = false;
+  res = expr(buf, &success);
   if (res == expect) {
     printf("True  :");
   } else {