projects / apple / xnu.git / blame
| Commit | Line | Data |
|---|---|---|
| 55e303ae A |
1 | /* |
| 2 | * Copyright (c) 2003 Apple Computer, Inc. All rights reserved. | |
| 3 | * | |
| 4 | * @APPLE_LICENSE_HEADER_START@ | |
| 5 | * | |
| ff6e181a A |
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. Please obtain a copy of the License at | |
| 10 | * http://www.opensource.apple.com/apsl/ and read it before using this | |
| 11 | * file. | |
| 55e303ae | 12 | * |
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13 | * The Original Code and all software distributed under the License are |
| 14 | * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER | |
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15 | * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, |
| 16 | * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, | |
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17 | * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. |
| 18 | * Please see the License for the specific language governing rights and | |
| 19 | * limitations under the License. | |
| 55e303ae A |
20 | * |
| 21 | * @APPLE_LICENSE_HEADER_END@ | |
| 22 | */ | |
| 23 | ||
| 24 | #define ASSEMBLER | |
| 25 | #include <sys/appleapiopts.h> | |
| 26 | #include <ppc/asm.h> // EXT, LEXT | |
| 27 | #include <machine/cpu_capabilities.h> | |
| 28 | #include <machine/commpage.h> | |
| 29 | ||
| 30 | .text | |
| 31 | .align 2 | |
| 55e303ae A |
32 | |
| 33 | ||
| 34 | // ********************************************* | |
| 35 | // * M A C H _ A B S O L U T E _ T I M E _ 3 2 * | |
| 36 | // ********************************************* | |
| 37 | ||
| 38 | mach_absolute_time_32: | |
| 39 | 1: | |
| 40 | mftbu r3 | |
| 41 | mftb r4 | |
| 42 | mftbu r5 | |
| 43 | cmplw r3,r5 | |
| 44 | beqlr+ | |
| 45 | b 1b | |
| 46 | ||
| 91447636 | 47 | COMMPAGE_DESCRIPTOR(mach_absolute_time_32,_COMM_PAGE_ABSOLUTE_TIME,0,k64Bit,kCommPage32) |
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48 | |
| 49 | ||
| 50 | // ********************************************* | |
| 51 | // * M A C H _ A B S O L U T E _ T I M E _ 6 4 * | |
| 52 | // ********************************************* | |
| 53 | // | |
| 91447636 | 54 | // This is the version that is called in 32-bit mode, so we return the TBR in r3 and r4. |
| 55e303ae A |
55 | |
| 56 | mach_absolute_time_64: | |
| 57 | mftb r4 | |
| 58 | srdi r3,r4,32 | |
| 59 | blr | |
| 60 | ||
| 91447636 A |
61 | COMMPAGE_DESCRIPTOR(mach_absolute_time_64,_COMM_PAGE_ABSOLUTE_TIME,k64Bit,0,kCommPage32) |
| 62 | ||
| 63 | ||
| 64 | // ************************************************* | |
| 65 | // * M A C H _ A B S O L U T E _ T I M E _ L P 6 4 * | |
| 66 | // ************************************************* | |
| 67 | // | |
| 68 | // This is the version that is called in 64-bit mode, so we return the TBR in r3. | |
| 69 | ||
| 70 | mach_absolute_time_lp64: | |
| 71 | mftb r3 | |
| 72 | blr | |
| 73 | ||
| 74 | COMMPAGE_DESCRIPTOR(mach_absolute_time_lp64,_COMM_PAGE_ABSOLUTE_TIME,k64Bit,0,kCommPage64) | |
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75 | |
| 76 |