reactos/lib/sdk/crt/float/i386/statfp.c
Art Yerkes c501d8112c Create a branch for network fixes.
svn path=/branches/aicom-network-fixes/; revision=34994
2008-08-01 11:32:26 +00:00

42 lines
1.2 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS system libraries
* FILE: lib/crt/??????
* PURPOSE: Unknown
* PROGRAMER: Unknown
* UPDATE HISTORY:
* 25/11/05: Added license header
*/
#include <precomp.h>
#include "float.h"
//WTF IS HAPPENING WITH float.h !??!?!
#define _SW_INVALID 0x00000010 /* invalid */
#define _SW_ZERODIVIDE 0x00000008 /* zero divide */
#define _SW_UNDERFLOW 0x00000002 /* underflow */
#define _SW_OVERFLOW 0x00000004 /* overflow */
#define _SW_INEXACT 0x00000001 /* inexact (precision) */
#define _SW_DENORMAL 0x00080000 /* denormal status bit */
/**********************************************************************
* _statusfp (MSVCRT.@)
*/
unsigned int CDECL _statusfp(void)
{
unsigned int retVal = 0;
#if defined(__GNUC__) && defined(__i386__)
unsigned int fpword;
__asm__ __volatile__( "fstsw %0" : "=m" (fpword) : );
if (fpword & 0x1) retVal |= _SW_INVALID;
if (fpword & 0x2) retVal |= _SW_DENORMAL;
if (fpword & 0x4) retVal |= _SW_ZERODIVIDE;
if (fpword & 0x8) retVal |= _SW_OVERFLOW;
if (fpword & 0x10) retVal |= _SW_UNDERFLOW;
if (fpword & 0x20) retVal |= _SW_INEXACT;
#else
FIXME(":Not implemented!\n");
#endif
return retVal;
}