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ieeefp.h revision 1.7.24.1
      1  1.7.24.1  jdolecek /*	$NetBSD: ieeefp.h,v 1.7.24.1 2017/12/03 11:36:23 jdolecek Exp $	*/
      2       1.3     perry 
      3       1.1   mycroft /*
      4       1.1   mycroft  * Written by J.T. Conklin, Apr 6, 1995
      5       1.4   thorpej  * Modified by Jason R. Thorpe, June 22, 2003
      6       1.1   mycroft  * Public domain.
      7       1.1   mycroft  */
      8       1.1   mycroft 
      9       1.1   mycroft #ifndef _M68K_IEEEFP_H_
     10       1.1   mycroft #define _M68K_IEEEFP_H_
     11       1.1   mycroft 
     12       1.6      matt #include <sys/featuretest.h>
     13       1.6      matt 
     14       1.6      matt #if defined(_NETBSD_SOURCE) || defined(_ISOC99_SOURCE)
     15       1.6      matt 
     16  1.7.24.1  jdolecek #include <m68k/fenv.h>
     17       1.6      matt 
     18       1.6      matt #if !defined(_ISOC99_SOURCE)
     19       1.6      matt 
     20       1.1   mycroft typedef int fp_except;
     21       1.6      matt 
     22  1.7.24.1  jdolecek /* adjust for FP_* and FE_* value differences */
     23  1.7.24.1  jdolecek #define	__FPE(x) ((x) >> 3)
     24  1.7.24.1  jdolecek #define	__FEE(x) ((x) << 3)
     25  1.7.24.1  jdolecek #define	__FPR(x) ((x) >> 4)
     26  1.7.24.1  jdolecek #define	__FER(x) ((x) << 4)
     27  1.7.24.1  jdolecek 
     28  1.7.24.1  jdolecek #define FP_X_IMP	__FPE(FE_INEXACT)	/* imprecise (loss of precision) */
     29  1.7.24.1  jdolecek #define FP_X_DZ		__FPE(FE_DIVBYZERO)	/* divide-by-zero exception */
     30  1.7.24.1  jdolecek #define FP_X_UFL	__FPE(FE_UNDERFLOW)	/* underflow exception */
     31  1.7.24.1  jdolecek #define FP_X_OFL	__FPE(FE_OVERFLOW)	/* overflow exception */
     32  1.7.24.1  jdolecek #define FP_X_INV	__FPE(FE_INVALID)	/* invalid operation exception */
     33       1.1   mycroft 
     34       1.1   mycroft typedef enum {
     35  1.7.24.1  jdolecek     FP_RN=__FPR(FE_TONEAREST),	/* round to nearest representable number */
     36  1.7.24.1  jdolecek     FP_RZ=__FPR(FE_TOWARDZERO),	/* round to zero (truncate) */
     37  1.7.24.1  jdolecek     FP_RM=__FPR(FE_DOWNWARD),	/* round toward negative infinity */
     38  1.7.24.1  jdolecek     FP_RP=__FPR(FE_UPWARD)	/* round toward positive infinity */
     39       1.1   mycroft } fp_rnd;
     40       1.1   mycroft 
     41       1.4   thorpej typedef enum {
     42       1.4   thorpej     FP_PE=0,			/* extended-precision (64-bit) */
     43       1.4   thorpej     FP_PS=1,			/* single-precision (24-bit) */
     44       1.4   thorpej     FP_PD=2			/* double-precision (53-bit) */
     45       1.4   thorpej } fp_prec;
     46       1.4   thorpej 
     47  1.7.24.1  jdolecek #endif /* !_ISOC99_SOURCE */
     48       1.6      matt 
     49       1.4   thorpej #define	__HAVE_FP_PREC
     50       1.4   thorpej 
     51       1.6      matt #endif	/* _NETBSD_SOURCE || _ISOC99_SOURCE */
     52       1.6      matt 
     53       1.1   mycroft #endif /* _M68K_IEEEFP_H_ */
     54