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43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/* -
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* Written by J.T. Conklin, Apr 6, 1995
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* Public domain.
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* $NetBSD: ieeefp.h,v 1.2 1999/07/07 01:52:26 danw Exp $
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*/
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#ifndef _MACHINE_IEEEFP_H_
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#define _MACHINE_IEEEFP_H_
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/* Deprecated historical FPU control interface */
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typedef int fp_except_t;
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#ifdef __SPE__
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#define FP_X_OFL 0x01 /* overflow exception */
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#define FP_X_UFL 0x02 /* underflow exception */
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#define FP_X_DZ 0x04 /* divide-by-zero exception */
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#define FP_X_INV 0x08 /* invalid operation exception */
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#define FP_X_IMP 0x10 /* imprecise (loss of precision) */
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#else
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#define FP_X_IMP 0x01 /* imprecise (loss of precision) */
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#define FP_X_DZ 0x02 /* divide-by-zero exception */
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#define FP_X_UFL 0x04 /* underflow exception */
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#define FP_X_OFL 0x08 /* overflow exception */
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#define FP_X_INV 0x10 /* invalid operation exception */
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#endif
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typedef enum {
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FP_RN=0, /* round to nearest representable number */
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FP_RZ=1, /* round to zero (truncate) */
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FP_RP=2, /* round toward positive infinity */
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FP_RM=3 /* round toward negative infinity */
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} fp_rnd_t;
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__BEGIN_DECLS
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extern fp_rnd_t fpgetround(void);
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extern fp_rnd_t fpsetround(fp_rnd_t);
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extern fp_except_t fpgetmask(void);
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extern fp_except_t fpsetmask(fp_except_t);
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extern fp_except_t fpgetsticky(void);
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__END_DECLS
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#endif /* _MACHINE_IEEEFP_H_ */
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