Add original unix v6

2018-01-27 22:35:41 +09:00
commit 2c7099ee50
664 changed files with 106254 additions and 0 deletions
@@ -0,0 +1,12 @@
+/ C return sequence which
+/ sets errno, returns -1.
+
+.globl	cerror
+.comm	_errno,2
+
+cerror:
+	mov	r0,_errno
+	mov	$-1,r0
+	mov	r5,sp
+	mov	(sp)+,r5
+	rts	pc