0,0 → 1,93 |
# |
# Copyright (C) 2006 Martin Decky |
# All rights reserved. |
# |
# Redistribution and use in source and binary forms, with or without |
# modification, are permitted provided that the following conditions |
# are met: |
# |
# - Redistributions of source code must retain the above copyright |
# notice, this list of conditions and the following disclaimer. |
# - Redistributions in binary form must reproduce the above copyright |
# notice, this list of conditions and the following disclaimer in the |
# documentation and/or other materials provided with the distribution. |
# - The name of the author may not be used to endorse or promote products |
# derived from this software without specific prior written permission. |
# |
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
# |
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#include <arch/asm/regname.h> |
#include <arch/context_offset.h> |
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.text |
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.global fpu_context_save |
.global fpu_context_restore |
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.macro FPU_CONTEXT_STORE r |
stfd fr14, OFFSET_FR14(\r) |
stfd fr15, OFFSET_FR15(\r) |
stfd fr16, OFFSET_FR16(\r) |
stfd fr17, OFFSET_FR17(\r) |
stfd fr18, OFFSET_FR18(\r) |
stfd fr19, OFFSET_FR19(\r) |
stfd fr20, OFFSET_FR20(\r) |
stfd fr21, OFFSET_FR21(\r) |
stfd fr22, OFFSET_FR22(\r) |
stfd fr23, OFFSET_FR23(\r) |
stfd fr24, OFFSET_FR24(\r) |
stfd fr25, OFFSET_FR25(\r) |
stfd fr26, OFFSET_FR26(\r) |
stfd fr27, OFFSET_FR27(\r) |
stfd fr28, OFFSET_FR28(\r) |
stfd fr29, OFFSET_FR29(\r) |
stfd fr30, OFFSET_FR30(\r) |
stfd fr31, OFFSET_FR31(\r) |
.endm |
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.macro FPU_CONTEXT_LOAD r |
lfd fr14, OFFSET_FR14(\r) |
lfd fr15, OFFSET_FR15(\r) |
lfd fr16, OFFSET_FR16(\r) |
lfd fr17, OFFSET_FR17(\r) |
lfd fr18, OFFSET_FR18(\r) |
lfd fr19, OFFSET_FR19(\r) |
lfd fr20, OFFSET_FR20(\r) |
lfd fr21, OFFSET_FR21(\r) |
lfd fr22, OFFSET_FR22(\r) |
lfd fr23, OFFSET_FR23(\r) |
lfd fr24, OFFSET_FR24(\r) |
lfd fr25, OFFSET_FR25(\r) |
lfd fr26, OFFSET_FR26(\r) |
lfd fr27, OFFSET_FR27(\r) |
lfd fr28, OFFSET_FR28(\r) |
lfd fr29, OFFSET_FR29(\r) |
lfd fr30, OFFSET_FR30(\r) |
lfd fr31, OFFSET_FR31(\r) |
.endm |
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fpu_context_save: |
FPU_CONTEXT_STORE r3 |
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mffs fr0 |
stfd fr0, OFFSET_FPSCR(r3) |
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blr |
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fpu_context_restore: |
FPU_CONTEXT_LOAD r3 |
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lfd fr0, OFFSET_FPSCR(r3) |
mtfsf 7, fr0 |
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blr |