| /* This file contains the vector save and restore routines. |
| * |
| * Copyright (C) 2004-2021 Free Software Foundation, Inc. |
| * |
| * This file is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the |
| * Free Software Foundation; either version 3, or (at your option) any |
| * later version. |
| * |
| * This file is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * Under Section 7 of GPL version 3, you are granted additional |
| * permissions described in the GCC Runtime Library Exception, version |
| * 3.1, as published by the Free Software Foundation. |
| * |
| * You should have received a copy of the GNU General Public License and |
| * a copy of the GCC Runtime Library Exception along with this program; |
| * see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| * <http://www.gnu.org/licenses/>. |
| */ |
| |
| /* Vector save/restore routines for Darwin. Note that each vector |
| save/restore requires 2 instructions (8 bytes.) |
| |
| THE SAVE AND RESTORE ROUTINES CAN HAVE ONLY ONE GLOBALLY VISIBLE |
| ENTRY POINT - callers have to jump to "saveFP+60" to save f29..f31, |
| for example. For FP reg saves/restores, it takes one instruction |
| (4 bytes) to do the operation; for Vector regs, 2 instructions are |
| required (8 bytes.). */ |
| |
| /* With some assemblers, we need the correct machine directive to get the |
| right CPU type / subtype in the file header. */ |
| #if __ppc64__ |
| .machine ppc64 |
| #else |
| .machine ppc7400 |
| #endif |
| .text |
| .align 2 |
| |
| .private_extern saveVEC |
| saveVEC: |
| li r11,-192 |
| stvx v20,r11,r0 |
| li r11,-176 |
| stvx v21,r11,r0 |
| li r11,-160 |
| stvx v22,r11,r0 |
| li r11,-144 |
| stvx v23,r11,r0 |
| li r11,-128 |
| stvx v24,r11,r0 |
| li r11,-112 |
| stvx v25,r11,r0 |
| li r11,-96 |
| stvx v26,r11,r0 |
| li r11,-80 |
| stvx v27,r11,r0 |
| li r11,-64 |
| stvx v28,r11,r0 |
| li r11,-48 |
| stvx v29,r11,r0 |
| li r11,-32 |
| stvx v30,r11,r0 |
| li r11,-16 |
| stvx v31,r11,r0 |
| blr |
| |
| .private_extern restVEC |
| restVEC: |
| li r11,-192 |
| lvx v20,r11,r0 |
| li r11,-176 |
| lvx v21,r11,r0 |
| li r11,-160 |
| lvx v22,r11,r0 |
| li r11,-144 |
| lvx v23,r11,r0 |
| li r11,-128 |
| lvx v24,r11,r0 |
| li r11,-112 |
| lvx v25,r11,r0 |
| li r11,-96 |
| lvx v26,r11,r0 |
| li r11,-80 |
| lvx v27,r11,r0 |
| li r11,-64 |
| lvx v28,r11,r0 |
| li r11,-48 |
| lvx v29,r11,r0 |
| li r11,-32 |
| lvx v30,r11,r0 |
| li r11,-16 |
| lvx v31,r11,r0 |
| blr |
| |
| /* saveVEC_vr11 -- as saveVEC but VRsave is returned in R11. */ |
| |
| .private_extern saveVEC_vr11 |
| saveVEC_vr11: |
| li r11,-192 |
| stvx v20,r11,r0 |
| li r11,-176 |
| stvx v21,r11,r0 |
| li r11,-160 |
| stvx v22,r11,r0 |
| li r11,-144 |
| stvx v23,r11,r0 |
| li r11,-128 |
| stvx v24,r11,r0 |
| li r11,-112 |
| stvx v25,r11,r0 |
| li r11,-96 |
| stvx v26,r11,r0 |
| li r11,-80 |
| stvx v27,r11,r0 |
| li r11,-64 |
| stvx v28,r11,r0 |
| li r11,-48 |
| stvx v29,r11,r0 |
| li r11,-32 |
| stvx v30,r11,r0 |
| li r11,-16 |
| stvx v31,r11,r0 |
| mfspr r11,VRsave |
| blr |
| |
| /* As restVec, but the original VRsave value passed in R10. */ |
| |
| .private_extern restVEC_vr10 |
| restVEC_vr10: |
| li r11,-192 |
| lvx v20,r11,r0 |
| li r11,-176 |
| lvx v21,r11,r0 |
| li r11,-160 |
| lvx v22,r11,r0 |
| li r11,-144 |
| lvx v23,r11,r0 |
| li r11,-128 |
| lvx v24,r11,r0 |
| li r11,-112 |
| lvx v25,r11,r0 |
| li r11,-96 |
| lvx v26,r11,r0 |
| li r11,-80 |
| lvx v27,r11,r0 |
| li r11,-64 |
| lvx v28,r11,r0 |
| li r11,-48 |
| lvx v29,r11,r0 |
| li r11,-32 |
| lvx v30,r11,r0 |
| li r11,-16 |
| lvx v31,r11,r0 |
| /* restore VRsave from R10. */ |
| mtspr VRsave,r10 |
| blr |
