bcmp.s

来自「<B>Digital的Unix操作系统VAX 4.2源码</B>」· S 代码 · 共 22 行

/* @(#)bcmp.s	4.2 1/14/83 */
/* bcmp(s1, s2, n) */

#include "DEFS.h"

ENTRY(bcmp)
	movl	4(ap),r1
	movl	8(ap),r3
	movl	12(ap),r4
1:
	movzwl	$65535,r0
	cmpl	r4,r0
	jleq	2f
	subl2	r0,r4
	cmpc3	r0,(r1),(r3)
	jeql	1b
	addl2	r4,r0
	ret
2:
	cmpc3	r4,(r1),(r3)
	ret