/*      $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_ */