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path: root/include/arch/x86_64/bits/fenv.h
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#pragma once

#define FE_INVALID   1
#define __FE_DENORM  2
#define FE_DIVBYZERO 4
#define FE_OVERFLOW  8
#define FE_UNDERFLOW 16
#define FE_INEXACT   32

#define FE_ALL_EXCEPT 63

#define FE_TONEAREST  0
#define FE_DOWNWARD   0x400
#define FE_UPWARD     0x800
#define FE_TOWARDZERO 0xc00

typedef unsigned short fexcept_t;

typedef struct {
	unsigned short __control_word;
	unsigned short __unused1;
	unsigned short __status_word;
	unsigned short __unused2;
	unsigned short __tags;
	unsigned short __unused3;
	unsigned int __eip;
	unsigned short __cs_selector;
	unsigned int __opcode : 11;
	unsigned int __unused4 : 5;
	unsigned int __data_offset;
	unsigned short __data_selector;
	unsigned short __unused5;
	unsigned int __mxcsr;
} fenv_t;

#define FE_DFL_ENV ((const fenv_t *)-1)