xref: /original-bsd/usr.bin/f77/libF77/CCI/s_copy_s.s (revision a1c2194a)
1/*-
2 * Copyright (c) 1991 The Regents of the University of California.
3 * All rights reserved.
4 *
5 * This code is derived from software contributed to Berkeley by
6 * Computer Consoles Inc.
7 *
8 * %sccs.include.proprietary.c%
9 */
10
11#ifndef lint
12	.asciz "@(#)s_copy_s.s	5.2 (Berkeley) 04/12/91"
13#endif /* not lint */
14
15.data
16.text
17LL0:.align	1
18.globl	_s_copy
19.set	MASK__,0x1004		/* save r2, r12 */
20.data
21.text
22_s_copy:.word	MASK__
23movl	4(fp),r1		/* dest addr */
24movl	8(fp),r0		/* src addr */
25movl	12(fp),r12		/* dest length */
26cmpl	r12,16(fp)		/* if (ldest <= lsrc) */
27jgtr	L16
28movl	r12, r2			/* copy according to ldest */
29movs3
30ret
31L16: 				/* else */
32movl	16(fp),r2		/* copy according to lsrc */
33movs3
34addl2	4(fp),r12		/* and pad with spaces */
35L20:movb	$32,(r1)
36incl	r1
37cmpl	r1,r12
38jlssu	L20
39ret
40
41