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623e649acb
all cpu-related stuff is now defined in cpu.h (with cpu_ prefix and fully encapsulated). fix quite brittle core/HT unit/package detection. implement mkdir on VC8, where it is deprecated add strdup on MacOSX move ia32 code into separate subdir. functions implemented in asm are called ia32_asm_*. add some unix versions of sysdep functions (cannot test them) timer: fix for amd64 linux This was SVN commit r4995.
70 lines
1.4 KiB
C++
70 lines
1.4 KiB
C++
/**
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* =========================================================================
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* File : sysdep.cpp
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* Project : 0 A.D.
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* Description : various system-specific function implementations
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*
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* @author Jan.Wassenberg@stud.uni-karlsruhe.de
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* =========================================================================
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*/
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/*
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* Copyright (c) 2003-2005 Jan Wassenberg
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*
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* Redistribution and/or modification are also permitted under the
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* terms of the GNU General Public License as published by the
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* Free Software Foundation (version 2 or later, at your option).
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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*/
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#include "precompiled.h"
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#include "sysdep.h"
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// emulate C99 functionality
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#if !HAVE_C99_MATH
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// fallback versions in case ia32 optimized versions are unavailable.
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#if !HAVE_MS_ASM
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inline float rintf(float f)
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{
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return (float)(int)f;
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}
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inline double rint(double d)
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{
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return (double)(int)d;
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}
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float fminf(float a, float b)
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{
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return (a < b)? a : b;
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}
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float fmaxf(float a, float b)
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{
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return (a > b)? a : b;
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}
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uint fpclassify(double d)
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{
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// really sucky stub implementation; doesn't attempt to cover all cases.
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if(d != d)
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return FP_NAN;
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else
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return FP_NORMAL;
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}
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uint fpclassifyf(float f)
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{
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return fpclassify((double)f);
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}
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#endif
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#endif // #if !HAVE_C99_MATH
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