projects / thirdparty / gcc.git / blame
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|---|---|---|
| efdc5d91 AP |
1 | /* This file contains the vector save and restore routines. |
| 2 | * | |
| a5544970 | 3 | * Copyright (C) 2004-2019 Free Software Foundation, Inc. |
| efdc5d91 AP |
4 | * |
| 5 | * This file is free software; you can redistribute it and/or modify it | |
| 6 | * under the terms of the GNU General Public License as published by the | |
| 748086b7 | 7 | * Free Software Foundation; either version 3, or (at your option) any |
| efdc5d91 AP |
8 | * later version. |
| 9 | * | |
| efdc5d91 AP |
10 | * This file is distributed in the hope that it will be useful, but |
| 11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 13 | * General Public License for more details. | |
| 14 | * | |
| 748086b7 JJ |
15 | * Under Section 7 of GPL version 3, you are granted additional |
| 16 | * permissions described in the GCC Runtime Library Exception, version | |
| 17 | * 3.1, as published by the Free Software Foundation. | |
| 18 | * | |
| 19 | * You should have received a copy of the GNU General Public License and | |
| 20 | * a copy of the GCC Runtime Library Exception along with this program; | |
| 21 | * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 62c49b83 | 22 | * <http://www.gnu.org/licenses/>. |
| efdc5d91 AP |
23 | */ |
| 24 | ||
| 25 | /* Vector save/restore routines for Darwin. Note that each vector | |
| 26 | save/restore requires 2 instructions (8 bytes.) | |
| 27 | ||
| 28 | THE SAVE AND RESTORE ROUTINES CAN HAVE ONLY ONE GLOBALLY VISIBLE | |
| 29 | ENTRY POINT - callers have to jump to "saveFP+60" to save f29..f31, | |
| 30 | for example. For FP reg saves/restores, it takes one instruction | |
| 31 | (4 bytes) to do the operation; for Vector regs, 2 instructions are | |
| 32 | required (8 bytes.). */ | |
| 33 | ||
| c4e18b1c | 34 | .machine ppc7400 |
| efdc5d91 AP |
35 | .text |
| 36 | .align 2 | |
| 37 | ||
| 38 | .private_extern saveVEC | |
| 39 | saveVEC: | |
| 40 | li r11,-192 | |
| 41 | stvx v20,r11,r0 | |
| 42 | li r11,-176 | |
| 43 | stvx v21,r11,r0 | |
| 44 | li r11,-160 | |
| 45 | stvx v22,r11,r0 | |
| 46 | li r11,-144 | |
| 47 | stvx v23,r11,r0 | |
| 48 | li r11,-128 | |
| 49 | stvx v24,r11,r0 | |
| 50 | li r11,-112 | |
| 51 | stvx v25,r11,r0 | |
| 52 | li r11,-96 | |
| 53 | stvx v26,r11,r0 | |
| 54 | li r11,-80 | |
| 55 | stvx v27,r11,r0 | |
| 56 | li r11,-64 | |
| 57 | stvx v28,r11,r0 | |
| 58 | li r11,-48 | |
| 59 | stvx v29,r11,r0 | |
| 60 | li r11,-32 | |
| 61 | stvx v30,r11,r0 | |
| 62 | li r11,-16 | |
| 63 | stvx v31,r11,r0 | |
| 64 | blr | |
| 65 | ||
| 66 | .private_extern restVEC | |
| 67 | restVEC: | |
| 68 | li r11,-192 | |
| 69 | lvx v20,r11,r0 | |
| 70 | li r11,-176 | |
| 71 | lvx v21,r11,r0 | |
| 72 | li r11,-160 | |
| 73 | lvx v22,r11,r0 | |
| 74 | li r11,-144 | |
| 75 | lvx v23,r11,r0 | |
| 76 | li r11,-128 | |
| 77 | lvx v24,r11,r0 | |
| 78 | li r11,-112 | |
| 79 | lvx v25,r11,r0 | |
| 80 | li r11,-96 | |
| 81 | lvx v26,r11,r0 | |
| 82 | li r11,-80 | |
| 83 | lvx v27,r11,r0 | |
| 84 | li r11,-64 | |
| 85 | lvx v28,r11,r0 | |
| 86 | li r11,-48 | |
| 87 | lvx v29,r11,r0 | |
| 88 | li r11,-32 | |
| 89 | lvx v30,r11,r0 | |
| 90 | li r11,-16 | |
| 91 | lvx v31,r11,r0 | |
| 92 | blr | |
| 93 | ||
| 94 | /* saveVEC_vr11 -- as saveVEC but VRsave is returned in R11. */ | |
| 95 | ||
| 96 | .private_extern saveVEC_vr11 | |
| 97 | saveVEC_vr11: | |
| 98 | li r11,-192 | |
| 99 | stvx v20,r11,r0 | |
| 100 | li r11,-176 | |
| 101 | stvx v21,r11,r0 | |
| 102 | li r11,-160 | |
| 103 | stvx v22,r11,r0 | |
| 104 | li r11,-144 | |
| 105 | stvx v23,r11,r0 | |
| 106 | li r11,-128 | |
| 107 | stvx v24,r11,r0 | |
| 108 | li r11,-112 | |
| 109 | stvx v25,r11,r0 | |
| 110 | li r11,-96 | |
| 111 | stvx v26,r11,r0 | |
| 112 | li r11,-80 | |
| 113 | stvx v27,r11,r0 | |
| 114 | li r11,-64 | |
| 115 | stvx v28,r11,r0 | |
| 116 | li r11,-48 | |
| 117 | stvx v29,r11,r0 | |
| 118 | li r11,-32 | |
| 119 | stvx v30,r11,r0 | |
| 120 | li r11,-16 | |
| 121 | stvx v31,r11,r0 | |
| 122 | mfspr r11,VRsave | |
| 123 | blr | |
| 124 | ||
| 125 | /* As restVec, but the original VRsave value passed in R10. */ | |
| 126 | ||
| 127 | .private_extern restVEC_vr10 | |
| 128 | restVEC_vr10: | |
| 129 | li r11,-192 | |
| 130 | lvx v20,r11,r0 | |
| 131 | li r11,-176 | |
| 132 | lvx v21,r11,r0 | |
| 133 | li r11,-160 | |
| 134 | lvx v22,r11,r0 | |
| 135 | li r11,-144 | |
| 136 | lvx v23,r11,r0 | |
| 137 | li r11,-128 | |
| 138 | lvx v24,r11,r0 | |
| 139 | li r11,-112 | |
| 140 | lvx v25,r11,r0 | |
| 141 | li r11,-96 | |
| 142 | lvx v26,r11,r0 | |
| 143 | li r11,-80 | |
| 144 | lvx v27,r11,r0 | |
| 145 | li r11,-64 | |
| 146 | lvx v28,r11,r0 | |
| 147 | li r11,-48 | |
| 148 | lvx v29,r11,r0 | |
| 149 | li r11,-32 | |
| 150 | lvx v30,r11,r0 | |
| 151 | li r11,-16 | |
| 152 | lvx v31,r11,r0 | |
| 153 | /* restore VRsave from R10. */ | |
| 154 | mtspr VRsave,r10 | |
| 155 | blr |