> 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
 19:14:12 up 18:04,  1 user,  load average: 0.25, 0.15, 0.11

nemu/src/monitor/sdb/expr.c

@@ -217,6 +217,9 @@ uint32_t eval(const Token* arr, int p, int q, bool* success) {
     int type = arr[i].type;
     int type_level = get_level(type);
     if (type_level <= op_type_level) {
+      if (arr[op].type == TK_NEG && type == TK_NEG) {
+        continue;
+      }
       op = i;
       op_type_level = type_level;
     }