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Get rid of Sys_FPU_SetRounding()

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dhewg 2012-07-05 20:32:00 +02:00
parent 0ef470de6c
commit a4558bb080
2 changed files with 0 additions and 34 deletions
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10
neo/sys/sys_public.h
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@ -58,13 +58,6 @@ typedef enum {
FPU_PRECISION_DOUBLE_EXTENDED = 2
} fpuPrecision_t;
typedef enum {
FPU_ROUNDING_TO_NEAREST = 0,
FPU_ROUNDING_DOWN = 1,
FPU_ROUNDING_UP = 2,
FPU_ROUNDING_TO_ZERO = 3
} fpuRounding_t;
typedef enum {
AXIS_SIDE,
AXIS_FORWARD,
@ -167,9 +160,6 @@ void Sys_FPU_EnableExceptions( int exceptions );
// sets the FPU precision
void Sys_FPU_SetPrecision( int precision );
// sets the FPU rounding mode
void Sys_FPU_SetRounding( int rounding );
// sets Flush-To-Zero mode
void Sys_FPU_SetFTZ( bool enable );

24
neo/sys/win32/win_cpu.cpp
View file

@ -297,27 +297,3 @@ void Sys_FPU_SetPrecision( int precision ) {
}
#endif
}
/*
================
Sys_FPU_SetRounding
================
*/
void Sys_FPU_SetRounding( int rounding ) {
#ifdef _MSC_VER
short roundingBitTable[4] = { 0, 1, 2, 3 };
short roundingBits = roundingBitTable[rounding & 3] << 10;
short roundingMask = ~( ( 1 << 11 ) | ( 1 << 10 ) );
__asm {
mov eax, statePtr
mov cx, roundingBits
fnstcw word ptr [eax]
mov bx, word ptr [eax]
and bx, roundingMask
or bx, cx
mov word ptr [eax], bx
fldcw word ptr [eax]
}
#endif
}