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/*
* Copyright (c) 1998 Robert Nordier
* All rights reserved.
*
* Redistribution and use in source and binary forms are freely
* permitted provided that the above copyright notice and this
* paragraph and the following disclaimer are duplicated in all
* such forms.
*
* This software is provided "AS IS" and without any express or
* implied warranties, including, without limitation, the implied
* warranties of merchantability and fitness for a particular
* purpose.
*/
/*
* $FreeBSD$
*/
#ifndef _BTXV86_H_
#define _BTXV86_H_
#include <sys/types.h>
#include <machine/psl.h>
#define V86_ADDR 0x10000 /* Segment:offset address */
#define V86_CALLF 0x20000 /* Emulate far call */
#define V86_FLAGS 0x40000 /* Return flags */
struct __v86 {
uint32_t ctl; /* Control flags */
uint32_t addr; /* Interrupt number or address */
uint32_t es; /* V86 ES register */
uint32_t ds; /* V86 DS register */
uint32_t fs; /* V86 FS register */
uint32_t gs; /* V86 GS register */
uint32_t eax; /* V86 EAX register */
uint32_t ecx; /* V86 ECX register */
uint32_t edx; /* V86 EDX register */
uint32_t ebx; /* V86 EBX register */
uint32_t efl; /* V86 eflags register */
uint32_t ebp; /* V86 EBP register */
uint32_t esi; /* V86 ESI register */
uint32_t edi; /* V86 EDI register */
};
extern struct __v86 __v86; /* V86 interface structure */
void __v86int(void);
#define v86 __v86
#define v86int __v86int
extern u_int32_t __base;
extern u_int32_t __args;
#define PTOV(pa) ((caddr_t)(pa) - __base)
#define VTOP(va) ((vm_offset_t)(va) + __base)
#define VTOPSEG(va) (u_int16_t)(VTOP((caddr_t)va) >> 4)
#define VTOPOFF(va) (u_int16_t)(VTOP((caddr_t)va) & 0xf)
#define V86_CY(x) ((x) & PSL_C)
#define V86_ZR(x) ((x) & PSL_Z)
void __exit(int) __attribute__((__noreturn__));
void __exec(caddr_t, ...);
#endif /* !_BTXV86_H_ */
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