1/*
2 * Copyright (c) 2003 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
5 *
6 * This file contains Original Code and/or Modifications of Original Code
7 * as defined in and that are subject to the Apple Public Source License
8 * Version 2.0 (the 'License'). You may not use this file except in
9 * compliance with the License. The rights granted to you under the License
10 * may not be used to create, or enable the creation or redistribution of,
11 * unlawful or unlicensed copies of an Apple operating system, or to
12 * circumvent, violate, or enable the circumvention or violation of, any
13 * terms of an Apple operating system software license agreement.
14 *
15 * Please obtain a copy of the License at
16 * http://www.opensource.apple.com/apsl/ and read it before using this file.
17 *
18 * The Original Code and all software distributed under the License are
19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
23 * Please see the License for the specific language governing rights and
24 * limitations under the License.
25 *
26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
27 */
28
29#include <sys/appleapiopts.h>
30#include <ppc/asm.h>					// EXT, LEXT
31#include <machine/cpu_capabilities.h>
32#include <machine/commpage.h>
33
34        .text
35        .align	2
36
37
38// *********************************************
39// * M A C H _ A B S O L U T E _ T I M E _ 3 2 *
40// *********************************************
41
42mach_absolute_time_32:
431:
44        mftbu	r3
45        mftb	r4
46        mftbu	r5
47        cmplw	r3,r5
48        beqlr+
49        b		1b
50
51	COMMPAGE_DESCRIPTOR(mach_absolute_time_32,_COMM_PAGE_ABSOLUTE_TIME,0,k64Bit,kCommPage32)
52
53
54// *********************************************
55// * M A C H _ A B S O L U T E _ T I M E _ 6 4 *
56// *********************************************
57//
58// This is the version that is called in 32-bit mode, so we return the TBR in r3 and r4.
59
60mach_absolute_time_64:
61        mftb	r4
62        srdi	r3,r4,32
63        blr
64
65	COMMPAGE_DESCRIPTOR(mach_absolute_time_64,_COMM_PAGE_ABSOLUTE_TIME,k64Bit,0,kCommPage32)
66
67
68// *************************************************
69// * M A C H _ A B S O L U T E _ T I M E _ L P 6 4 *
70// *************************************************
71//
72// This is the version that is called in 64-bit mode, so we return the TBR in r3.
73
74mach_absolute_time_lp64:
75        mftb	r3
76        blr
77
78	COMMPAGE_DESCRIPTOR(mach_absolute_time_lp64,_COMM_PAGE_ABSOLUTE_TIME,k64Bit,0,kCommPage64)
79
80
81