--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/initcode.S	Fri May 26 23:11:05 2017 +0900
@@ -0,0 +1,28 @@
+# Initial process execs /init.
+
+#include "syscall.h"
+
+.globl start
+
+# exec(init, argv)
+start:
+    LDR     r1, =init
+    LDR     r2, =argv
+    MOV     r0, #SYS_exec
+    SWI     0x00
+
+exit:
+    MOV     r0, #SYS_exit
+    SWI     0x00
+    B       exit
+
+# char init[] = "/init\0";
+init:
+    .string "/init\0"
+
+# char *argv[] = { init, 0 };
+.p2align 2
+argv:
+    .word init
+    .word 0
+