[unix-history] / usr / src / lib / libc / vax / string / strcpy.s

/*
 * Copyright (c) 1983 Regents of the University of California.
 * All rights reserved.
 *
 * %sccs.include.redist.c%
 */

#if defined(LIBC_SCCS) && !defined(lint)
	.asciz "@(#)strcpy.s	5.6 (Berkeley) %G%"
#endif /* LIBC_SCCS and not lint */

/*
 * Copy string s2 over top of s1.
 * Return base of s1.
 *
 * char *
 * strcpy(s1, s2)
 *	char *s1, *s2;
 */
#include "DEFS.h"

ENTRY(strcpy, R6)
	movl	4(ap), r3	# r3 = s1
	movl	8(ap), r6	# r6 = s2
1:
	locc	$0,$65535,(r6)	# find length of s2
	bneq	2f
	movc3	$65535,(r6),(r3)# copy full block
	movl	r1,r6
	jbr	1b
2:
	subl2	r6,r1		# calculate length
	incl	r1
	movc3	r1,(r6),(r3)	# copy remainder
	movl	4(ap),r0	# return base of s1
	ret
Commit	Line	Data
586c39b1 DF	1	/*
586c39b1 DF	2	* Copyright (c) 1983 Regents of the University of California.
493b70ca KB	3	* All rights reserved.
493b70ca KB	4	*
019bea33	5	* %sccs.include.redist.c%
586c39b1 DF	6	*/
586c39b1 DF	7
f4f66d2c	8	#if defined(LIBC_SCCS) && !defined(lint)
019bea33	9	.asciz "@(#)strcpy.s 5.6 (Berkeley) %G%"
f4f66d2c	10	#endif /* LIBC_SCCS and not lint */
ae7679ef SL	11
	12	/*
	13	* Copy string s2 over top of s1.
dff54044	14	* Return base of s1.
ae7679ef SL	15	*
	16	* char *
	17	* strcpy(s1, s2)
	18	* char s1, s2;
	19	*/
dadab5a2	20	#include "DEFS.h"
ae7679ef	21
dadab5a2	22	ENTRY(strcpy, R6)
ae7679ef SL	23	movl 4(ap), r3 # r3 = s1
	24	movl 8(ap), r6 # r6 = s2
	25	1:
	26	locc $0,$65535,(r6) # find length of s2
	27	bneq 2f
	28	movc3 $65535,(r6),(r3)# copy full block
dff54044	29	movl r1,r6
ae7679ef SL	30	jbr 1b
	31	2:
	32	subl2 r6,r1 # calculate length
	33	incl r1
	34	movc3 r1,(r6),(r3) # copy remainder
dff54044	35	movl 4(ap),r0 # return base of s1
ae7679ef	36	ret