1bbb83b526
- Use some files from ARM version. - Use NetBSD software floating point library to provide floating point operations not handled directly by hardware floating point enabled GCC compiler. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Harry Liebel <Harry.Liebel@arm.com> Reviewed-by: Olivier Martin <Olivier.Martin@arm.com> Reviewed-by: Daryl McDaniel <edk2-lists@mc2research.org> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18118 6f19259b-4bc3-4df7-8a09-765794883524
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
/* $NetBSD: fenv.h,v 1.2 2014/01/29 00:22:09 matt Exp $ */
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/*
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* Based on ieeefp.h written by J.T. Conklin, Apr 28, 1995
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* Public domain.
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*/
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#ifndef _AARCH64_FENV_H_
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#define _AARCH64_FENV_H_
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/* AArch64 split FPSCR into two registers FPCR and FPSR */
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typedef struct {
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unsigned int __fpcr;
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unsigned int __fpsr;
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} fenv_t;
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typedef int fexcept_t;
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#define FE_INVALID 0x01 /* invalid operation exception */
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#define FE_DIVBYZERO 0x02 /* divide-by-zero exception */
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#define FE_OVERFLOW 0x04 /* overflow exception */
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#define FE_UNDERFLOW 0x08 /* underflow exception */
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#define FE_INEXACT 0x10 /* imprecise (loss of precision; "inexact") */
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#define FE_ALL_EXCEPT 0x1f
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#define FE_TONEAREST 0 /* round to nearest representable number */
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#define FE_UPWARD 1 /* round toward positive infinity */
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#define FE_DOWNWARD 2 /* round toward negative infinity */
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#define FE_TOWARDZERO 3 /* round to zero (truncate) */
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__BEGIN_DECLS
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/* Default floating-point environment */
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extern const fenv_t __fe_dfl_env;
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#define FE_DFL_ENV (&__fe_dfl_env)
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__END_DECLS
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#endif /* _AARCH64_FENV_H_ */
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