btxv86.h revision 226746
139165Srnordier/* 239165Srnordier * Copyright (c) 1998 Robert Nordier 339165Srnordier * All rights reserved. 439165Srnordier * 539165Srnordier * Redistribution and use in source and binary forms are freely 639165Srnordier * permitted provided that the above copyright notice and this 739165Srnordier * paragraph and the following disclaimer are duplicated in all 839165Srnordier * such forms. 939165Srnordier * 1039165Srnordier * This software is provided "AS IS" and without any express or 1139165Srnordier * implied warranties, including, without limitation, the implied 1239165Srnordier * warranties of merchantability and fitness for a particular 1339165Srnordier * purpose. 1439165Srnordier */ 1539165Srnordier 1639165Srnordier/* 1750477Speter * $FreeBSD: head/sys/boot/i386/btx/lib/btxv86.h 226746 2011-10-25 19:45:12Z jhb $ 1839165Srnordier */ 1939165Srnordier 2039165Srnordier#ifndef _BTXV86_H_ 2139165Srnordier#define _BTXV86_H_ 2239165Srnordier 2339165Srnordier#include <sys/types.h> 24226746Sjhb#include <machine/psl.h> 2539165Srnordier 2639165Srnordier#define V86_ADDR 0x10000 /* Segment:offset address */ 2739165Srnordier#define V86_CALLF 0x20000 /* Emulate far call */ 2839165Srnordier#define V86_FLAGS 0x40000 /* Return flags */ 2939165Srnordier 3039165Srnordierstruct __v86 { 3139165Srnordier uint32_t ctl; /* Control flags */ 3239165Srnordier uint32_t addr; /* Interrupt number or address */ 3339165Srnordier uint32_t es; /* V86 ES register */ 3439165Srnordier uint32_t ds; /* V86 DS register */ 3539165Srnordier uint32_t fs; /* V86 FS register */ 3639165Srnordier uint32_t gs; /* V86 GS register */ 3739165Srnordier uint32_t eax; /* V86 EAX register */ 3839165Srnordier uint32_t ecx; /* V86 ECX register */ 3939165Srnordier uint32_t edx; /* V86 EDX register */ 4039165Srnordier uint32_t ebx; /* V86 EBX register */ 4139165Srnordier uint32_t efl; /* V86 eflags register */ 4239165Srnordier uint32_t ebp; /* V86 EBP register */ 4339165Srnordier uint32_t esi; /* V86 ESI register */ 4439165Srnordier uint32_t edi; /* V86 EDI register */ 4539165Srnordier}; 4639165Srnordier 4739165Srnordierextern struct __v86 __v86; /* V86 interface structure */ 4839441Smsmithvoid __v86int(void); 4939165Srnordier 5039441Smsmith#define v86 __v86 5139441Smsmith#define v86int __v86int 5239441Smsmith 5339441Smsmithextern u_int32_t __base; 5439441Smsmithextern u_int32_t __args; 5539441Smsmith 5639901Smsmith#define PTOV(pa) ((caddr_t)(pa) - __base) 5739901Smsmith#define VTOP(va) ((vm_offset_t)(va) + __base) 5839901Smsmith#define VTOPSEG(va) (u_int16_t)(VTOP((caddr_t)va) >> 4) 5939901Smsmith#define VTOPOFF(va) (u_int16_t)(VTOP((caddr_t)va) & 0xf) 6039441Smsmith 61226746Sjhb#define V86_CY(x) ((x) & PSL_C) 62226746Sjhb#define V86_ZR(x) ((x) & PSL_Z) 63226746Sjhb 6439895Smsmithvoid __exit(int) __attribute__((__noreturn__)); 6539165Srnordiervoid __exec(caddr_t, ...); 6639165Srnordier 6739165Srnordier#endif /* !_BTXV86_H_ */ 68