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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [config/] [rs6000/] [darwin-vecsave.asm] - Blame information for rev 816

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1 38 julius 
/*  This file contains the vector save and restore routines.
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 *
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 *   Copyright (C) 2004 Free Software Foundation, Inc.
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 *
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 * This file is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License as published by the
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 * Free Software Foundation; either version 2, or (at your option) any
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 * later version.
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 *
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 * In addition to the permissions in the GNU General Public License, the
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 * Free Software Foundation gives you unlimited permission to link the
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 * compiled version of this file with other programs, and to distribute
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 * those programs without any restriction coming from the use of this
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 * file.  (The General Public License restrictions do apply in other
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 * respects; for example, they cover modification of the file, and
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 * distribution when not linked into another program.)
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 *
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 * This file is distributed in the hope that it will be useful, but
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 * WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
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 * General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; see the file COPYING.  If not, write to
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 * the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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 * Boston, MA 02110-1301, USA.
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 *
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 *  As a special exception, if you link this library with files
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 *  compiled with GCC to produce an executable, this does not cause the
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 *  resulting executable to be covered by the GNU General Public License.
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 *  This exception does not however invalidate any other reasons why the
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 *  executable file might be covered by the GNU General Public License.
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 */
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/* Vector save/restore routines for Darwin.  Note that each vector
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   save/restore requires 2 instructions (8 bytes.)
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   THE SAVE AND RESTORE ROUTINES CAN HAVE ONLY ONE GLOBALLY VISIBLE
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   ENTRY POINT - callers have to jump to "saveFP+60" to save f29..f31,
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   for example.  For FP reg saves/restores, it takes one instruction
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   (4 bytes) to do the operation; for Vector regs, 2 instructions are
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   required (8 bytes.).   */
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        .machine ppc7400
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.text
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        .align 2
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.private_extern saveVEC
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saveVEC:
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        li r11,-192
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        stvx v20,r11,r0
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        li r11,-176
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        stvx v21,r11,r0
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        li r11,-160
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        stvx v22,r11,r0
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        li r11,-144
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        stvx v23,r11,r0
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        li r11,-128
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        stvx v24,r11,r0
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        li r11,-112
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        stvx v25,r11,r0
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        li r11,-96
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        stvx v26,r11,r0
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        li r11,-80
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        stvx v27,r11,r0
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        li r11,-64
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        stvx v28,r11,r0
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        li r11,-48
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        stvx v29,r11,r0
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        li r11,-32
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        stvx v30,r11,r0
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        li r11,-16
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        stvx v31,r11,r0
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        blr
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.private_extern restVEC
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restVEC:
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        li r11,-192
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        lvx v20,r11,r0
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        li r11,-176
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        lvx v21,r11,r0
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        li r11,-160
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        lvx v22,r11,r0
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        li r11,-144
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        lvx v23,r11,r0
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        li r11,-128
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        lvx v24,r11,r0
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        li r11,-112
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        lvx v25,r11,r0
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        li r11,-96
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        lvx v26,r11,r0
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        li r11,-80
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        lvx v27,r11,r0
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        li r11,-64
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        lvx v28,r11,r0
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        li r11,-48
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        lvx v29,r11,r0
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        li r11,-32
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        lvx v30,r11,r0
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        li r11,-16
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        lvx v31,r11,r0
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        blr
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/* saveVEC_vr11 -- as saveVEC but VRsave is returned in R11.  */
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.private_extern saveVEC_vr11
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saveVEC_vr11:
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        li r11,-192
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        stvx v20,r11,r0
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        li r11,-176
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        stvx v21,r11,r0
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        li r11,-160
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        stvx v22,r11,r0
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        li r11,-144
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        stvx v23,r11,r0
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        li r11,-128
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        stvx v24,r11,r0
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        li r11,-112
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        stvx v25,r11,r0
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        li r11,-96
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        stvx v26,r11,r0
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        li r11,-80
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        stvx v27,r11,r0
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        li r11,-64
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        stvx v28,r11,r0
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        li r11,-48
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        stvx v29,r11,r0
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        li r11,-32
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        stvx v30,r11,r0
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        li r11,-16
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        stvx v31,r11,r0
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        mfspr r11,VRsave
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        blr
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/* As restVec, but the original VRsave value passed in R10.  */
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.private_extern restVEC_vr10
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restVEC_vr10:
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        li r11,-192
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        lvx v20,r11,r0
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        li r11,-176
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        lvx v21,r11,r0
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        li r11,-160
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        lvx v22,r11,r0
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        li r11,-144
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        lvx v23,r11,r0
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        li r11,-128
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        lvx v24,r11,r0
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        li r11,-112
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        lvx v25,r11,r0
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        li r11,-96
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        lvx v26,r11,r0
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        li r11,-80
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        lvx v27,r11,r0
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        li r11,-64
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        lvx v28,r11,r0
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        li r11,-48
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        lvx v29,r11,r0
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        li r11,-32
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        lvx v30,r11,r0
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        li r11,-16
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        lvx v31,r11,r0
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                                /* restore VRsave from R10.  */
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        mtspr VRsave,r10
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        blr

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