48 lines
756 B
C
48 lines
756 B
C
/*
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*
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* $FreeBSD$
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*
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*/
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#ifndef _MATH_EMU_H
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#define _MATH_EMU_H
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struct fpu_reg {
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char sign;
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char tag;
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long exp;
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u_long sigl;
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u_long sigh;
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};
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union i387_union {
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struct i387_hard_struct {
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long cwd;
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long swd;
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long twd;
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long fip;
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long fcs;
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long foo;
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long fos;
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long st_space[20]; /* 8*10 bytes for each FP-reg = 80
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* bytes */
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} hard;
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struct i387_soft_struct {
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long cwd;
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long swd;
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long twd;
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long fip;
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long fcs;
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long foo;
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long fos;
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long top;
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struct fpu_reg regs[8]; /* 8*16 bytes for each FP-reg = 128
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* bytes */
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unsigned char lookahead;
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struct trapframe *frame;
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unsigned long entry_eip;
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int orig_eip;
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} soft;
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};
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#endif
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