/ error	= killbkg(pgrp, sig)

.globl	_killbkg
.globl	cerror

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