156 lines
3.2 KiB
ArmAsm
156 lines
3.2 KiB
ArmAsm
/* This file contains the vector save and restore routines.
|
|
*
|
|
* Copyright (C) 2004-2015 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.). */
|
|
|
|
.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
|