mirror of
https://github.com/TorqueGameEngines/Torque3D.git
synced 2026-01-20 04:34:48 +00:00
56 lines
1.9 KiB
C++
56 lines
1.9 KiB
C++
//-----------------------------------------------------------------------------
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// Copyright (c) 2012 GarageGames, LLC
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to
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// deal in the Software without restriction, including without limitation the
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// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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// sell copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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// IN THE SOFTWARE.
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//-----------------------------------------------------------------------------
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#include "math/mMath.h"
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static S32 m_mulDivS32_ASM(S32 a, S32 b, S32 c)
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{ // a * b / c
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S32 r;
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__asm__ __volatile__(
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"imul %2\n"
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"idiv %3\n"
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: "=a" (r) : "a" (a) , "b" (b) , "c" (c)
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);
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return r;
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}
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static U32 m_mulDivU32_ASM(S32 a, S32 b, U32 c)
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{ // a * b / c
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S32 r;
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__asm__ __volatile__(
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"mov $0, %%edx\n"
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"mul %2\n"
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"div %3\n"
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: "=a" (r) : "a" (a) , "b" (b) , "c" (c)
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);
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return r;
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}
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//------------------------------------------------------------------------------
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void mInstallLibrary_ASM()
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{
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m_mulDivS32 = m_mulDivS32_ASM;
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m_mulDivU32 = m_mulDivU32_ASM;
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}
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