diff options
Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/rs6000/darwin-vecsave.asm')
-rw-r--r-- | gcc-4.2.1-5666.3/gcc/config/rs6000/darwin-vecsave.asm | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/rs6000/darwin-vecsave.asm b/gcc-4.2.1-5666.3/gcc/config/rs6000/darwin-vecsave.asm new file mode 100644 index 000000000..693879f82 --- /dev/null +++ b/gcc-4.2.1-5666.3/gcc/config/rs6000/darwin-vecsave.asm @@ -0,0 +1,165 @@ +/* This file contains the vector save and restore routines. + * + * Copyright (C) 2004 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 2, or (at your option) any + * later version. + * + * In addition to the permissions in the GNU General Public License, the + * Free Software Foundation gives you unlimited permission to link the + * compiled version of this file with other programs, and to distribute + * those programs without any restriction coming from the use of this + * file. (The General Public License restrictions do apply in other + * respects; for example, they cover modification of the file, and + * distribution when not linked into another program.) + * + * 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. + * + * You should have received a copy of the GNU General Public License + * along with this program; see the file COPYING. If not, write to + * the Free Software Foundation, 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + * As a special exception, if you link this library with files + * compiled with GCC to produce an executable, this does not cause the + * resulting executable to be covered by the GNU General Public License. + * This exception does not however invalidate any other reasons why the + * executable file might be covered by the GNU General Public License. + */ + +/* 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.). */ + + .machine ppc7400 +.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 |