> 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
 18:06:44 up 13:19,  1 user,  load average: 0.21, 0.09, 0.11

abstract-machine/klib/src/stdio.c

@@ -42,6 +42,19 @@ int vsnprintf(char *out, size_t n, const char *fmt, va_list ap) {
 }
 
 static int rvsnprintf(char* out, size_t n, const char* fmt, va_list ap) {
+  while (n) {
+    switch (*fmt)
+    {
+    case '%':
+      break;
+    default:
+      *out = *fmt;
+      out ++;
+      fmt ++;
+      n --;
+      break;
+    }
+  }
   return 0;
 }