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remove math_ops.h

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This commit is contained in:
aliaspider 2014-11-23 04:41:08 +01:00
parent 5ecde178a3
commit baa762be44
3 changed files with 0 additions and 43 deletions
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2
pce_fast/cdrom/SimpleFIFO.h
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@ -3,8 +3,6 @@
#include <assert.h>
#include "math_ops.h"
template<typename T>
class SimpleFIFO
{

40
pce_fast/mednafen/math_ops.h
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@ -1,40 +0,0 @@
#ifndef __MDFN_MATH_OPS_H
#define __MDFN_MATH_OPS_H
#include "mednafen.h"
static INLINE uint32 uilog2(uint32 v)
{
// http://graphics.stanford.edu/~seander/bithacks.html#IntegerLogDeBruijn
static const uint32 MultiplyDeBruijnBitPosition[32] =
{
0, 9, 1, 10, 13, 21, 2, 29, 11, 14, 16, 18, 22, 25, 3, 30,
8, 12, 20, 28, 15, 17, 24, 7, 19, 27, 23, 6, 26, 5, 4, 31
};
v |= v >> 1; // first round down to one less than a power of 2
v |= v >> 2;
v |= v >> 4;
v |= v >> 8;
v |= v >> 16;
return MultiplyDeBruijnBitPosition[(uint32_t)(v * 0x07C4ACDDU) >> 27];
}
// Some compilers' optimizers and some platforms might fubar the generated code from these macros,
// so some tests are run in...tests.cpp
#define sign_8_to_s16(_value) ((int16)(int8)(_value))
#define sign_9_to_s16(_value) (((int16)((unsigned int)(_value) << 7)) >> 7)
#define sign_10_to_s16(_value) (((int16)((uint32)(_value) << 6)) >> 6)
#define sign_11_to_s16(_value) (((int16)((uint32)(_value) << 5)) >> 5)
#define sign_12_to_s16(_value) (((int16)((uint32)(_value) << 4)) >> 4)
#define sign_13_to_s16(_value) (((int16)((uint32)(_value) << 3)) >> 3)
#define sign_14_to_s16(_value) (((int16)((uint32)(_value) << 2)) >> 2)
#define sign_15_to_s16(_value) (((int16)((uint32)(_value) << 1)) >> 1)
// This obviously won't convert higher-than-32 bit numbers to signed 32-bit ;)
// Also, this shouldn't be used for 8-bit and 16-bit signed numbers, since you can
// convert those faster with typecasts...
#define sign_x_to_s32(_bits, _value) (((int32)((uint32)(_value) << (32 - _bits))) >> (32 - _bits))
#endif

1
pce_fast/mednafen/mednafen.h
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@ -6,7 +6,6 @@
#include <stdlib.h>
#include <string.h>
#include "mednafen-types.h"
#include "math_ops.h"
#include "settings.h"
#include "git.h"
extern MDFNGI MDFNGameInfo;