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- Replaced the static consts by enums.

This commit is contained in:
Sylvain Pion 1999-03-12 14:21:11 +00:00
parent 814d128d15
commit 9731f06a82
1 changed files with 52 additions and 36 deletions
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88
Packages/Interval_arithmetic/include/CGAL/Interval_arithmetic/_FPU.h
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@ -98,11 +98,12 @@ CGAL_BEGIN_NAMESPACE
#define CGAL_IA_GETFPCW(CW) asm volatile ("fstcw %0" : "=m" (CW))
#endif
typedef unsigned short FPU_CW_t;
// x86: rounding | def. mask
static const FPU_CW_t FPU_cw_near = _FPU_RC_NEAREST | 0x127f;
static const FPU_CW_t FPU_cw_zero = _FPU_RC_ZERO | 0x127f;
static const FPU_CW_t FPU_cw_up = _FPU_RC_UP | 0x127f;
static const FPU_CW_t FPU_cw_down = _FPU_RC_DOWN | 0x127f;
enum { // rounding | def. mask
FPU_cw_near = _FPU_RC_NEAREST | 0x127f,
FPU_cw_zero = _FPU_RC_ZERO | 0x127f,
FPU_cw_up = _FPU_RC_UP | 0x127f,
FPU_cw_down = _FPU_RC_DOWN | 0x127f
};
#endif // __i386
#ifdef __sparc
@ -110,17 +111,20 @@ static const FPU_CW_t FPU_cw_down = _FPU_RC_DOWN | 0x127f;
#define CGAL_IA_SETFPCW(CW) asm volatile ("ld %0,%%fsr" : :"m" (CW))
#define CGAL_IA_GETFPCW(CW) asm volatile ("st %%fsr,%0" : "=m" (CW))
typedef unsigned int FPU_CW_t;
// Sparc: rounding | precision | def.mask
static const FPU_CW_t FPU_cw_near = 0x0 | 0x20000000 | 0x1f;
static const FPU_CW_t FPU_cw_zero = 0x40000000 | 0x20000000 | 0x1f;
static const FPU_CW_t FPU_cw_up = 0x80000000 | 0x20000000 | 0x1f;
static const FPU_CW_t FPU_cw_down = 0xc0000000 | 0x20000000 | 0x1f;
enum { // rounding | precision | def.mask
FPU_cw_near = 0x0 | 0x20000000 | 0x1f,
FPU_cw_zero = 0x40000000 | 0x20000000 | 0x1f,
FPU_cw_up = 0x80000000 | 0x20000000 | 0x1f,
FPU_cw_down = 0xc0000000 | 0x20000000 | 0x1f
};
#else
typedef fp_rnd FPU_CW_t;
static const FPU_CW_t FPU_cw_near = FP_RN;
static const FPU_CW_t FPU_cw_zero = FP_RZ;
static const FPU_CW_t FPU_cw_up = FP_RP;
static const FPU_CW_t FPU_cw_down = FP_RM;
enum {
FPU_cw_near = FP_RN,
FPU_cw_zero = FP_RZ,
FPU_cw_up = FP_RP,
FPU_cw_down = FP_RM
};
#endif
#endif // __sparc
@ -129,23 +133,29 @@ static const FPU_CW_t FPU_cw_down = FP_RM;
#define CGAL_IA_SETFPCW(CW) asm volatile ("ctc1 %0,$31" : :"r" (CW))
#define CGAL_IA_GETFPCW(CW) asm volatile ("cfc1 %0,$31" : "=r" (CW))
typedef unsigned int FPU_CW_t;
static const FPU_CW_t FPU_cw_near = 0x0;
static const FPU_CW_t FPU_cw_zero = 0x1;
static const FPU_CW_t FPU_cw_up = 0x2;
static const FPU_CW_t FPU_cw_down = 0x3;
enum {
FPU_cw_near = 0x0,
FPU_cw_zero = 0x1,
FPU_cw_up = 0x2,
FPU_cw_down = 0x3
};
#else
#ifdef __SGI_ieeefph__ // 2 cases for C... I love IRIX !!!
typedef fp_rnd FPU_CW_t;
static const FPU_CW_t FPU_cw_near = FP_RN;
static const FPU_CW_t FPU_cw_zero = FP_RZ;
static const FPU_CW_t FPU_cw_up = FP_RP;
static const FPU_CW_t FPU_cw_down = FP_RM;
enum {
FPU_cw_near = FP_RN,
FPU_cw_zero = FP_RZ,
FPU_cw_up = FP_RP,
FPU_cw_down = FP_RM
};
#else
typedef int FPU_CW_t;
static const FPU_CW_t FPU_cw_near = ROUND_TO_NEAREST;
static const FPU_CW_t FPU_cw_zero = ROUND_TO_ZERO;
static const FPU_CW_t FPU_cw_up = ROUND_TO_PLUS_INFINITY;
static const FPU_CW_t FPU_cw_down = ROUND_TO_MINUS_INFINITY;
enum {
FPU_cw_near = ROUND_TO_NEAREST,
FPU_cw_zero = ROUND_TO_ZERO,
FPU_cw_up = ROUND_TO_PLUS_INFINITY,
FPU_cw_down = ROUND_TO_MINUS_INFINITY
};
#endif
#endif
#endif // __mips
@ -155,22 +165,28 @@ static const FPU_CW_t FPU_cw_down = ROUND_TO_MINUS_INFINITY;
#define CGAL_IA_SETFPCW(CW) asm volatile ("mt_fpcr %0; excb" : :"f" (CW))
#define CGAL_IA_GETFPCW(CW) asm volatile ("excb; mf_fpcr %0" : "=f" (CW))
typedef unsigned long FPU_CW_t;
// Alpha: rounding
static const FPU_CW_t FPU_cw_zero = 0x0000000000000000UL;
static const FPU_CW_t FPU_cw_near = 0x0800000000000000UL;
static const FPU_CW_t FPU_cw_up = 0x0c00000000000000UL;
static const FPU_CW_t FPU_cw_down = 0x0400000000000000UL;
enum { // rounding
// I guess it won't work, because enum == int.
FPU_cw_zero = 0x0000000000000000UL,
FPU_cw_near = 0x0800000000000000UL,
FPU_cw_up = 0x0c00000000000000UL,
FPU_cw_down = 0x0400000000000000UL
};
#else
typedef unsigned int FPU_CW_t;
static const FPU_CW_t FPU_cw_zero = FP_RND_RZ;
static const FPU_CW_t FPU_cw_near = FP_RND_RN;
static const FPU_CW_t FPU_cw_up = FP_RND_RP;
static const FPU_CW_t FPU_cw_down = FP_RND_RM;
enum {
FPU_cw_zero = FP_RND_RZ,
FPU_cw_near = FP_RND_RN,
FPU_cw_up = FP_RND_RP,
FPU_cw_down = FP_RND_RM
};
#endif
#endif // __alpha
// Generic part.
// Main functions:
static inline FPU_CW_t FPU_get_control_word (void);
static inline void FPU_set_control_word (FPU_CW_t);
static inline FPU_CW_t FPU_get_control_word (void)
{