42 lines
729 B
C
42 lines
729 B
C
|
#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
|