/* * * $FreeBSD: src/sys/gnu/i386/fpemul/math_emu.h,v 1.2.12.1 1999/09/05 08:09:44 peter Exp $ * */ #ifndef _MATH_EMU_H #define _MATH_EMU_H struct fpu_reg { char sign; char tag; long exp; u_long sigl; u_long sigh; }; union i387_union { struct i387_hard_struct { long cwd; long swd; long twd; long fip; long fcs; long foo; long fos; long st_space[20]; /* 8*10 bytes for each FP-reg = 80 * bytes */ } hard; struct i387_soft_struct { long cwd; long swd; long twd; long fip; long fcs; long foo; long fos; long top; struct fpu_reg regs[8]; /* 8*16 bytes for each FP-reg = 128 * bytes */ unsigned char lookahead; struct trapframe *frame; unsigned long entry_eip; int orig_eip; } soft; }; #endif
