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/* $OpenBSD: ieeefp.h,v 1.4 2011/03/23 16:54:36 pirofti Exp $ */
/*
* Written by J.T. Conklin, Apr 11, 1995
* Public domain.
*/
#ifndef _MIPS64_IEEEFP_H_
#define _MIPS64_IEEEFP_H_
typedef int fp_except;
#define FP_X_IMP 0x01 /* imprecise (loss of precision) */
#define FP_X_UFL 0x02 /* underflow exception */
#define FP_X_OFL 0x04 /* overflow exception */
#define FP_X_DZ 0x08 /* divide-by-zero exception */
#define FP_X_INV 0x10 /* invalid operation exception */
typedef enum {
FP_RN=0, /* round to nearest representable number */
FP_RZ=1, /* round to zero (truncate) */
FP_RP=2, /* round toward positive infinity */
FP_RM=3 /* round toward negative infinity */
} fp_rnd;
#ifdef _KERNEL
/*
* Defines for the floating-point completion/emulation code.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/proc.h>
#include <machine/fpu.h>
#define float_raise(bits) \
do { curproc->p_md.md_regs->fsr |= (bits) << FPCSR_C_SHIFT; } while (0)
#define float_set_inexact() float_raise(FP_X_IMP)
#define float_set_invalid() float_raise(FP_X_INV)
#define float_get_round(csr) (csr & FPCSR_RM_MASK)
#define fpgetround() float_get_round(curproc->p_md.md_regs->fsr)
#endif
#endif /* !_MIPS64_IEEEFP_H_ */
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