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f81e44a0d9
three ABIs are supported: the default with 68881 80-bit fpu format and results returned in floating point registers, softfloat-only with the same format, and coldfire fpu with IEEE single/double only. only the first is tested at all, and only under qemu which has fpu emulation bugs. basic functionality smoke tests have been performed for the most common arch-specific breakage via libc-test and qemu user-level emulation. some sysvipc failures remain, but are shared with other big endian archs and will be fixed separately.
30 lines
527 B
C
30 lines
527 B
C
#if __HAVE_68881__ || __mcffpu__
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#define FE_INEXACT 8
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#define FE_DIVBYZERO 16
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#define FE_UNDERFLOW 32
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#define FE_OVERFLOW 64
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#define FE_INVALID 128
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#define FE_ALL_EXCEPT 0xf8
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#define FE_TONEAREST 0
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#define FE_TOWARDZERO 16
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#define FE_DOWNWARD 32
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#define FE_UPWARD 48
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#else
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#define FE_ALL_EXCEPT 0
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#define FE_TONEAREST 0
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#endif
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typedef unsigned fexcept_t;
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typedef struct {
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unsigned __control_register, __status_register, __instruction_address;
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} fenv_t;
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#define FE_DFL_ENV ((const fenv_t *) -1)
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