kaguya
94 lines
1.8 KiB
C
94 lines
1.8 KiB
C
#ifndef MLIBC_FENV_H
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#define MLIBC_FENV_H
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#if defined(__x86_64__) || defined(__i386__)
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#define FE_DENORMAL 2
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#define FE_DIVBYZERO 4
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#define FE_INEXACT 32
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#define FE_INVALID 1
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#define FE_OVERFLOW 8
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#define FE_UNDERFLOW 16
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#define FE_ALL_EXCEPT (FE_DENORMAL | FE_DIVBYZERO | FE_INEXACT | FE_INVALID | FE_OVERFLOW | FE_UNDERFLOW)
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#define FE_TONEAREST 0
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#define FE_DOWNWARD 0x400
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#define FE_UPWARD 0x800
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#define FE_TOWARDZERO 0xC00
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#elif defined(__aarch64__)
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#define FE_INVALID 1
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#define FE_DIVBYZERO 2
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#define FE_OVERFLOW 4
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#define FE_UNDERFLOW 8
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#define FE_INEXACT 16
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#define FE_ALL_EXCEPT 31
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#define FE_TONEAREST 0
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#define FE_UPWARD 0x400000
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#define FE_DOWNWARD 0x800000
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#define FE_TOWARDZERO 0xC00000
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#elif defined(__riscv) && __riscv_xlen == 64
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#define FE_INEXACT 1
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#define FE_UNDERFLOW 2
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#define FE_OVERFLOW 4
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#define FE_DIVBYZERO 8
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#define FE_INVALID 16
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#define FE_ALL_EXCEPT 31
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#define FE_TONEAREST 0
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#define FE_TOWARDZERO 1
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#define FE_DOWNWARD 2
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#define FE_UPWARD 3
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#elif defined (__m68k__)
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#if __HAVE_68881__ || __mcffpu__ || __HAVE_FPU_
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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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#elif defined(__loongarch64)
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#define FE_INEXACT 0x010000
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#define FE_UNDERFLOW 0x020000
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#define FE_OVERFLOW 0x040000
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#define FE_DIVBYZERO 0x080000
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#define FE_INVALID 0x100000
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#define FE_ALL_EXCEPT (FE_INEXACT | FE_DIVBYZERO | FE_UNDERFLOW | FE_OVERFLOW | FE_INVALID)
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#define FE_TONEAREST 0x000
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#define FE_TOWARDZERO 0x100
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#define FE_UPWARD 0x200
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#define FE_DOWNWARD 0x300
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#else
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#error Unknown architecture
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#endif
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#endif /* MLIBC_FENV_H */
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