MiniUnix/usr/source/s5/write.s

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/ C library -- write

/ nwritten = write(file, buffer, count);
/
/ nwritten == -1 means error

.globl	_write, cerror

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