diff --git a/baremetal/arch/aarch64/no_bootloader/m5exit.S b/baremetal/arch/aarch64/no_bootloader/m5exit.S
new file mode 100644
index 0000000..067f46d
--- /dev/null
+++ b/baremetal/arch/aarch64/no_bootloader/m5exit.S
@@ -0,0 +1,3 @@
+.global mystart
+mystart:
+    mov x0, #0; .inst 0XFF000110 | (0x21 << 16);
diff --git a/baremetal/lib/common.c b/baremetal/lib/common.c
index c6334bc..b6a3e33 100644
--- a/baremetal/lib/common.c
+++ b/baremetal/lib/common.c
@@ -58,7 +58,7 @@ int _write(int file, char *ptr, int len) {
     return len;
 }
 
-/* Only 0 is supported for now, arm semihosting cannot handle it. */
+/* Only 0 is supported for now, arm semihosting cannot handle other values. */
 void _exit(int status) {
 #if defined(__arm__)
     __asm__ __volatile__ ("mov r0, #0x18; ldr r1, =#0x20026; svc 0x00123456");