usr/src/lib/libc/vax/string/strcpy.s

/*      strcpy.s        4.3     84/11/07        */

/*
 * 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