chown.s

unix v7是最后一个广泛发布的研究型UNIX版本

/ C library -- chown

/ error = chown(string, owner);

.globl	_chown,
.globl	cerror
.chown = 16.

_chown:
	mov	r5,-(sp)
	mov	sp,r5
	mov	4(r5),0f
	mov	6(r5),0f+2
	mov	8(r5),0f+4
	sys	0; 9f
	bec	1f
	jmp	cerror
1:
	clr	r0
	mov	(sp)+,r5
	rts	pc
.data
9:
	sys	.chown; 0:..; ..; ..