> 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
 22:09:55 up 6 days, 17:15,  1 user,  load average: 1.11, 1.04, 1.05

nanos-lite/src/syscall.c

@@ -8,8 +8,7 @@ size_t _write(int fd, const void *buf, size_t count) {
   for (size_t i = 0; i < count; i++) {
     putch(((const char*)buf)[i]);
   }
-  printf("%d", count);
-  return count;
+  return 0;
 }
 
 void _sbrk(intptr_t increment) {
@@ -30,5 +29,4 @@ void do_syscall(Context *c) {
     case SYS_exit: halt(0);  break;
     default: panic("Unhandled syscall ID = %d", a[0]);
   }
-  printf("syscall %d done, ret = 0x%x\n", a[0], c->GPRx);
 }