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#ifndef _I386_MATH_EMU_H

#define _I386_MATH_EMU_H

#include <asm/sigcontext.h>

void restore_i387_soft(struct _fpstate *buf);

struct _fpstate * save_i387_soft(struct _fpstate * buf);

struct fpu_reg {

        char sign;

        char tag;

        long exp;

        unsigned sigl;

        unsigned sigh;

};

/* This structure matches the layout of the data saved to the stack

   following a device-not-present interrupt, part of it saved

   automatically by the 80386/80486.

   */

struct info {

        long ___orig_eip;

        long ___ret_from_system_call;

        long ___ebx;

        long ___ecx;

        long ___edx;

        long ___esi;

        long ___edi;

        long ___ebp;

        long ___eax;

        long ___ds;

        long ___es;

        long ___fs;

        long ___gs;

        long ___orig_eax;

        long ___eip;

        long ___cs;

        long ___eflags;

        long ___esp;

        long ___ss;

        long ___vm86_es; /* This and the following only in vm86 mode */

        long ___vm86_ds;

        long ___vm86_fs;

        long ___vm86_gs;

};

/* Interface for converting data between the emulator format

 * and the hardware format. Used for core dumping and for

 * ptrace(2) */

void hardreg_to_softreg(const char hardreg[10],

                              struct fpu_reg *soft_reg);

void softreg_to_hardreg(const struct fpu_reg *rp, char d[10],

                        long int control_word);

#endif