1/* $NetBSD: sbrk.S,v 1.4 1996/10/17 03:08:20 cgd Exp $ */
2
3/*
4 * Copyright (c) 1994, 1995 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
22 * School of Computer Science
23 * Carnegie Mellon University
24 * Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30#include <machine/asm.h>
31__FBSDID("$FreeBSD: head/lib/libc/ia64/sys/sbrk.S 111777 2003-03-03 01:09:46Z obrien $");
32
33#include "SYS.h"
34
35 .globl _end
36
37 .data
38EXPORT(curbrk)
39 .quad _end
40
41 .text
42ENTRY(sbrk, 1)
43 add r14 = @ltoff(curbrk), gp
44 ;;
45 ld8 r14 = [r14]
46 cmp.eq p6, p0 = in0, r0
47 ;;
48 ld8 ret0 = [r14]
49(p6) br.ret.sptk.few rp
50 ;;
51 add in0 = ret0, in0
52 CALLSYS_ERROR(break)
53 add r14 = @ltoff(curbrk), gp
54 ;;
55 ld8 r14 = [r14]
56 ;;
57 ld8 ret0 = [r14]
58 st8 [r14] = in0
59 br.ret.sptk.few rp
60END(sbrk)
2
3/*
4 * Copyright (c) 1994, 1995 Carnegie-Mellon University.
5 * All rights reserved.
6 *
7 * Author: Chris G. Demetriou
8 *
9 * Permission to use, copy, modify and distribute this software and
10 * its documentation is hereby granted, provided that both the copyright
11 * notice and this permission notice appear in all copies of the
12 * software, derivative works or modified versions, and any portions
13 * thereof, and that both notices appear in supporting documentation.
14 *
15 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
16 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
17 * FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
18 *
19 * Carnegie Mellon requests users of this software to return to
20 *
21 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
22 * School of Computer Science
23 * Carnegie Mellon University
24 * Pittsburgh PA 15213-3890
25 *
26 * any improvements or extensions that they make and grant Carnegie the
27 * rights to redistribute these changes.
28 */
29
30#include <machine/asm.h>
31__FBSDID("$FreeBSD: head/lib/libc/ia64/sys/sbrk.S 111777 2003-03-03 01:09:46Z obrien $");
32
33#include "SYS.h"
34
35 .globl _end
36
37 .data
38EXPORT(curbrk)
39 .quad _end
40
41 .text
42ENTRY(sbrk, 1)
43 add r14 = @ltoff(curbrk), gp
44 ;;
45 ld8 r14 = [r14]
46 cmp.eq p6, p0 = in0, r0
47 ;;
48 ld8 ret0 = [r14]
49(p6) br.ret.sptk.few rp
50 ;;
51 add in0 = ret0, in0
52 CALLSYS_ERROR(break)
53 add r14 = @ltoff(curbrk), gp
54 ;;
55 ld8 r14 = [r14]
56 ;;
57 ld8 ret0 = [r14]
58 st8 [r14] = in0
59 br.ret.sptk.few rp
60END(sbrk)