ieeefp.h

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    1 /* -
    2  * Written by J.T. Conklin, Apr 6, 1995
    3  * Public domain.
    4  * $NetBSD: ieeefp.h,v 1.2 1999/07/07 01:52:26 danw Exp $
    5  * $FreeBSD$
    6  */
    7 
    8 #ifndef _MACHINE_IEEEFP_H_
    9 #define _MACHINE_IEEEFP_H_
   10 
   11 /* Deprecated historical FPU control interface */
   12 
   13 typedef int fp_except_t;
   14 #ifdef __SPE__
   15 #define FP_X_OFL        0x01    /* overflow exception */
   16 #define FP_X_UFL        0x02    /* underflow exception */
   17 #define FP_X_DZ         0x04    /* divide-by-zero exception */
   18 #define FP_X_INV        0x08    /* invalid operation exception */
   19 #define FP_X_IMP        0x10    /* imprecise (loss of precision) */
   20 #else
   21 #define FP_X_IMP        0x01    /* imprecise (loss of precision) */
   22 #define FP_X_DZ         0x02    /* divide-by-zero exception */
   23 #define FP_X_UFL        0x04    /* underflow exception */
   24 #define FP_X_OFL        0x08    /* overflow exception */
   25 #define FP_X_INV        0x10    /* invalid operation exception */
   26 #endif
   27 
   28 typedef enum {
   29     FP_RN=0,                    /* round to nearest representable number */
   30     FP_RZ=1,                    /* round to zero (truncate) */
   31     FP_RP=2,                    /* round toward positive infinity */
   32     FP_RM=3                     /* round toward negative infinity */
   33 } fp_rnd_t;
   34 
   35 __BEGIN_DECLS
   36 extern fp_rnd_t    fpgetround(void);
   37 extern fp_rnd_t    fpsetround(fp_rnd_t);
   38 extern fp_except_t fpgetmask(void);
   39 extern fp_except_t fpsetmask(fp_except_t);
   40 extern fp_except_t fpgetsticky(void);
   41 __END_DECLS
   42 
   43 #endif /* _MACHINE_IEEEFP_H_ */

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FreeBSD/Linux Kernel Cross Reference sys/powerpc/include/ieeefp.h

FreeBSD/Linux Kernel Cross Reference
sys/powerpc/include/ieeefp.h