tge/engine/platformWin32/winMath_ASM.cc
2017-04-17 06:17:10 -06:00

48 lines
978 B
C++
Executable File

//-----------------------------------------------------------------------------
// Torque Game Engine
// Copyright (C) GarageGames.com, Inc.
//-----------------------------------------------------------------------------
#include "math/mMath.h"
#if defined(TORQUE_SUPPORTS_VC_INLINE_X86_ASM)
static S32 m_mulDivS32_ASM(S32 a, S32 b, S32 c)
{ // a * b / c
S32 r;
_asm
{
mov eax, a
imul b
idiv c
mov r, eax
}
return r;
}
static U32 m_mulDivU32_ASM(S32 a, S32 b, U32 c)
{ // a * b / c
S32 r;
_asm
{
mov eax, a
mov edx, 0
mul b
div c
mov r, eax
}
return r;
}
#endif
//------------------------------------------------------------------------------
void mInstallLibrary_ASM()
{
#if defined(TORQUE_SUPPORTS_VC_INLINE_X86_ASM)
m_mulDivS32 = m_mulDivS32_ASM;
m_mulDivU32 = m_mulDivU32_ASM;
#endif
}