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