mirror of
https://github.com/reactos/reactos.git
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Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.
This commit is contained in:
Colin Finck
parent
b94e2d8ca0
commit
c2c66aff7d
24198 changed files with 0 additions and 37285 deletions
28
sdk/lib/crt/float/i386/clearfp.c
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28
sdk/lib/crt/float/i386/clearfp.c
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/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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* FILE: lib/sdk/crt/float/i386/clearfp.c
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* PURPOSE: Unknown
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* PROGRAMER: Unknown
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* UPDATE HISTORY:
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* 25/11/05: Added license header
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*/
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#include <precomp.h>
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unsigned int _statusfp( void );
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/*********************************************************************
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* _clearfp (MSVCRT.@)
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*/
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unsigned int CDECL _clearfp(void)
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{
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unsigned int retVal = _statusfp();
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#if defined(__GNUC__)
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__asm__ __volatile__( "fnclex" );
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#else
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__asm fnclex;
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#endif
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return retVal;
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}
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137
sdk/lib/crt/float/i386/cntrlfp.c
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137
sdk/lib/crt/float/i386/cntrlfp.c
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/* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */
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#include <precomp.h>
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#include <float.h>
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#define X87_CW_IM (1<<0) /* Invalid operation mask */
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#define X87_CW_DM (1<<1) /* Denormal operand mask */
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#define X87_CW_ZM (1<<2) /* Zero divide mask */
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#define X87_CW_OM (1<<3) /* Overflow mask */
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#define X87_CW_UM (1<<4) /* Underflow mask */
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#define X87_CW_PM (1<<5) /* Precision mask */
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#define X87_CW_PC_MASK (3<<8) /* precision control mask */
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#define X87_CW_PC24 (0<<8) /* 24 bit precision */
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#define X87_CW_PC53 (2<<8) /* 53 bit precision */
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#define X87_CW_PC64 (3<<8) /* 64 bit precision */
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#define X87_CW_RC_MASK (3<<10) /* rounding control mask */
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#define X87_CW_RC_NEAREST (0<<10) /* round to nearest */
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#define X87_CW_RC_DOWN (1<<10) /* round down */
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#define X87_CW_RC_UP (2<<10) /* round up */
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#define X87_CW_RC_ZERO (3<<10) /* round toward zero (chop) */
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#define X87_CW_IC (1<<12) /* infinity control flag */
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#ifdef _M_AMD64
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unsigned int __getfpcw87(void);
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void __setfpcw87(unsigned int);
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#endif
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/*
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* @implemented
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*/
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unsigned int CDECL _controlfp(unsigned int newval, unsigned int mask)
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{
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return _control87( newval, mask & ~_EM_DENORMAL );
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}
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/*********************************************************************
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* _control87 (MSVCRT.@)
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*/
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unsigned int CDECL _control87(unsigned int newval, unsigned int mask)
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{
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unsigned short fpword = 0;
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unsigned int flags = 0;
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TRACE("(%08x, %08x): Called\n", newval, mask);
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/* Get fp control word */
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#ifdef _M_AMD64
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fpword = __getfpcw87();
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#elif defined(__GNUC__)
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__asm__ __volatile__( "fstcw %0" : "=m" (fpword) : );
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#else
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__asm fstcw [fpword];
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#endif
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TRACE("Control word before : %08x\n", fpword);
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/* Convert into mask constants */
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if (fpword & 0x1) flags |= _EM_INVALID;
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if (fpword & 0x2) flags |= _EM_DENORMAL;
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if (fpword & 0x4) flags |= _EM_ZERODIVIDE;
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if (fpword & 0x8) flags |= _EM_OVERFLOW;
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if (fpword & 0x10) flags |= _EM_UNDERFLOW;
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if (fpword & 0x20) flags |= _EM_INEXACT;
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switch(fpword & 0xC00) {
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case 0xC00: flags |= _RC_UP|_RC_DOWN; break;
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case 0x800: flags |= _RC_UP; break;
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case 0x400: flags |= _RC_DOWN; break;
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}
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switch(fpword & 0x300) {
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case 0x0: flags |= _PC_24; break;
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case 0x200: flags |= _PC_53; break;
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case 0x300: flags |= _PC_64; break;
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}
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if (fpword & 0x1000) flags |= _IC_AFFINE;
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/* Mask with parameters */
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flags = (flags & ~mask) | (newval & mask);
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/* Convert (masked) value back to fp word */
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fpword = 0;
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if (flags & _EM_INVALID) fpword |= 0x1;
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if (flags & _EM_DENORMAL) fpword |= 0x2;
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if (flags & _EM_ZERODIVIDE) fpword |= 0x4;
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if (flags & _EM_OVERFLOW) fpword |= 0x8;
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if (flags & _EM_UNDERFLOW) fpword |= 0x10;
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if (flags & _EM_INEXACT) fpword |= 0x20;
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switch(flags & (_RC_UP | _RC_DOWN)) {
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case _RC_UP|_RC_DOWN: fpword |= 0xC00; break;
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case _RC_UP: fpword |= 0x800; break;
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case _RC_DOWN: fpword |= 0x400; break;
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}
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switch (flags & (_PC_24 | _PC_53)) {
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case _PC_64: fpword |= 0x300; break;
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case _PC_53: fpword |= 0x200; break;
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case _PC_24: fpword |= 0x0; break;
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}
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if (flags & _IC_AFFINE) fpword |= 0x1000;
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TRACE("Control word after : %08x\n", fpword);
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/* Put fp control word */
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#ifdef _M_AMD64
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__setfpcw87(fpword);
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#elif defined(__GNUC__)
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__asm__ __volatile__( "fldcw %0" : : "m" (fpword) );
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#else
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__asm fldcw [fpword];
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#endif
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return flags;
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}
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/*********************************************************************
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* _controlfp_s (MSVCRT.@)
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*/
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int CDECL _controlfp_s(unsigned int *cur, unsigned int newval, unsigned int mask)
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{
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#ifdef __i386__
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unsigned int val;
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if (!MSVCRT_CHECK_PMT( !(newval & mask & ~(_MCW_EM | _MCW_IC | _MCW_RC | _MCW_PC | _MCW_DN))))
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{
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if (cur) *cur = _controlfp( 0, 0 ); /* retrieve it anyway */
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return EINVAL;
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}
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val = _controlfp( newval, mask );
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if (cur) *cur = val;
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return 0;
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#else
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FIXME(":Not Implemented!\n");
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return 0;
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#endif
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}
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31
sdk/lib/crt/float/i386/fpreset.c
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31
sdk/lib/crt/float/i386/fpreset.c
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/*
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* COPYRIGHT: See COPYING.LIB in the top level directory
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* PROJECT: ReactOS system libraries
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* PURPOSE: Resets FPU state to the default
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* PROGRAMER: Thomas Faber <thomas.faber@reactos.org>
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*/
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#include <precomp.h>
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/*********************************************************************
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* _fpreset (MSVCRT.@)
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*/
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void CDECL _fpreset(void)
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{
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const unsigned short x86_cw = 0x27f;
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#ifdef _MSC_VER
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__asm { fninit }
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__asm { fldcw [x86_cw] }
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#else
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__asm__ __volatile__( "fninit; fldcw %0" : : "m" (x86_cw) );
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#endif
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if (IsProcessorFeaturePresent(PF_XMMI64_INSTRUCTIONS_AVAILABLE))
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{
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const unsigned long sse2_cw = 0x1f80;
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#ifdef _MSC_VER
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__asm { ldmxcsr [sse2_cw] }
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#else
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__asm__ __volatile__( "ldmxcsr %0" : : "m" (sse2_cw) );
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#endif
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}
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}
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40
sdk/lib/crt/float/i386/logb.c
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40
sdk/lib/crt/float/i386/logb.c
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/* Math functions for i387.
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Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by John C. Bowman <bowman@ipp-garching.mpg.de>, 1995.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include <precomp.h>
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double _logb (double __x)
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{
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register double __val;
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#ifdef __GNUC__
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register double __junk;
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__asm __volatile__
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("fxtract\n\t"
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: "=t" (__junk), "=u" (__val) : "0" (__x));
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#else
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#pragma message ("REVIEW ME")
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__asm fld [__x];
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__asm fxtract;
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__asm fstp st(0);
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__asm fstp [__val];
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#endif /*__GNUC__*/
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return __val;
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}
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44
sdk/lib/crt/float/i386/statfp.c
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44
sdk/lib/crt/float/i386/statfp.c
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/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS system libraries
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* FILE: lib/sdk/crt/float/i386/statfp.c
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* PURPOSE: Unknown
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* PROGRAMER: Unknown
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* UPDATE HISTORY:
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* 25/11/05: Added license header
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*/
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#include <precomp.h>
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#include "float.h"
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//WTF IS HAPPENING WITH float.h !??!?!
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#define _SW_INVALID 0x00000010 /* invalid */
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#define _SW_ZERODIVIDE 0x00000008 /* zero divide */
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#define _SW_UNDERFLOW 0x00000002 /* underflow */
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#define _SW_OVERFLOW 0x00000004 /* overflow */
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#define _SW_INEXACT 0x00000001 /* inexact (precision) */
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#define _SW_DENORMAL 0x00080000 /* denormal status bit */
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/**********************************************************************
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* _statusfp (MSVCRT.@)
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*/
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unsigned int CDECL _statusfp(void)
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{
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unsigned int retVal = 0;
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unsigned short fpword;
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#ifdef _M_AMD64
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fpword = _mm_getcsr();
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#elif defined(__GNUC__)
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__asm__ __volatile__( "fstsw %0" : "=m" (fpword) : );
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#else // _MSC_VER
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__asm fstsw [fpword];
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#endif
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if (fpword & 0x1) retVal |= _SW_INVALID;
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if (fpword & 0x2) retVal |= _SW_DENORMAL;
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if (fpword & 0x4) retVal |= _SW_ZERODIVIDE;
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if (fpword & 0x8) retVal |= _SW_OVERFLOW;
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if (fpword & 0x10) retVal |= _SW_UNDERFLOW;
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if (fpword & 0x20) retVal |= _SW_INEXACT;
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return retVal;
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}
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