ReactOS Development > Doxygen

00001 #pragma once
00002 
00003 #if defined(_M_IX86)
00004 
00005 FORCEINLINE
00006 BOOL
00007 _FLOATOBJ_Equal(FLOATOBJ *pf1, FLOATOBJ *pf2)
00008 {
00009     EFLOAT_S *pef1 = (EFLOAT_S*)pf1;
00010     EFLOAT_S *pef2 = (EFLOAT_S*)pf2;
00011     return (pef1->lMant == pef2->lMant && pef1->lExp == pef2->lExp);
00012 }
00013 
00014 FORCEINLINE
00015 LONG
00016 _FLOATOBJ_GetLong(FLOATOBJ *pf)
00017 {
00018     EFLOAT_S *pef = (EFLOAT_S*)pf;
00019     return pef->lMant >> (32 - pef->lExp);
00020 }
00021 
00022 FORCEINLINE
00023 LONG
00024 _FLOATOBJ_GetFix(FLOATOBJ *pf)
00025 {
00026     EFLOAT_S *pef = (EFLOAT_S*)pf;
00027     LONG Shift = (28 - pef->lExp);
00028     return (Shift >= 0 ? pef->lMant >> Shift : pef->lMant << -Shift);
00029 }
00030 
00031 FORCEINLINE
00032 BOOL
00033 _FLOATOBJ_IsLong(FLOATOBJ *pf)
00034 {
00035     EFLOAT_S *pef = (EFLOAT_S*)pf;
00036     ULONG Shift = 32 - pef->lExp;
00037     if (Shift > 31) return FALSE;
00038     return (((pef->lMant >> Shift) << Shift) == pef->lMant);
00039 }
00040 
00041 FORCEINLINE
00042 BOOL
00043 _FLOATOBJ_Equal0(FLOATOBJ *pf)
00044 {
00045     EFLOAT_S *pef = (EFLOAT_S*)pf;
00046     return (pef->lMant == 0 && pef->lExp == 0);
00047 }
00048 
00049 FORCEINLINE
00050 BOOL
00051 _FLOATOBJ_Equal1(FLOATOBJ *pf)
00052 {
00053     EFLOAT_S *pef = (EFLOAT_S*)pf;
00054     return (pef->lMant == 0x40000000 && pef->lExp == 2);
00055 }
00056 
00057 extern const FLOATOBJ gef0;
00058 extern const FLOATOBJ gef1;
00059 extern const FLOATOBJ gef16;
00060 
00061 #define FLOATOBJ_0 {0x00000000, 0x00000000}
00062 #define FLOATOBJ_1 {0x40000000, 0x00000002}
00063 #define FLOATOBJ_16 {0x40000000, 0x00000006}
00064 #define FLOATOBJ_1_16 {0x40000000, 0xfffffffe}
00065 
00066 #define FLOATOBJ_Set0(fo) (fo)->ul1 = 0; (fo)->ul2 = 0;
00067 #define FLOATOBJ_Set1(fo) (fo)->ul1 = 0x40000000; (fo)->ul2 = 2;
00068 
00069 #else
00070 
00071 #define _FLOATOBJ_Equal(pf,pf1) (*(pf) == *(pf1))
00072 #define _FLOATOBJ_GetLong(pf) ((LONG)*(pf))
00073 #define _FLOATOBJ_IsLong(pf) ((FLOAT)((LONG)*(pf)) == *(pf))
00074 #define _FLOATOBJ_Equal0(pf) (*(pf) == 0.)
00075 #define _FLOATOBJ_Equal1(pf) (*(pf) == 1.)
00076 #define _FLOATOBJ_GetFix(pf) ((LONG)(*(pf) * 16.))
00077 
00078 #define FLOATOBJ_0 0.
00079 #define FLOATOBJ_1 1.
00080 #define FLOATOBJ_16 16.
00081 #define FLOATOBJ_1_16 (1./16.)
00082 
00083 #define gef0 FLOATOBJ_0
00084 #define gef1 FLOATOBJ_1
00085 #define gef16 FLOATOBJ_16
00086 
00087 #define FLOATOBJ_Set0(fo) *(fo) = 0;
00088 #define FLOATOBJ_Set1(fo) *(fo) = 1;
00089 
00090 #endif
Generated on Fri May 25 2012 04:36:30 for ReactOS by
1.7.6.1