| | 1 | /* |
| | 2 | * Copyright (c) 1998 Robert Nordier |
| | 3 | * All rights reserved. |
| | 4 | * |
| | 5 | * Redistribution and use in source and binary forms are freely |
| | 6 | * permitted provided that the above copyright notice and this |
| | 7 | * paragraph and the following disclaimer are duplicated in all |
| | 8 | * such forms. |
| | 9 | * |
| | 10 | * This software is provided "AS IS" and without any express or |
| | 11 | * implied warranties, including, without limitation, the implied |
| | 12 | * warranties of merchantability and fitness for a particular |
| | 13 | * purpose. |
| | 14 | */ |
| | 15 | |
| | 16 | /* |
| | 17 | * $FreeBSD: src/sys/boot/i386/btx/lib/btxv86.h,v 1.5 1999/08/28 00:40:08 peter Exp $ |
| | 18 | * $DragonFly: src/sys/boot/i386/btx/lib/Attic/btxv86.h,v 1.3 2003/11/10 06:08:35 dillon Exp $ |
| | 19 | */ |
| | 20 | |
| | 21 | #ifndef _BTXV86_H_ |
| | 22 | #define _BTXV86_H_ |
| | 23 | |
| | 24 | #include <sys/types.h> |
| | 25 | |
| | 26 | #define V86_ADDR 0x10000 /* Segment:offset address */ |
| | 27 | #define V86_CALLF 0x20000 /* Emulate far call */ |
| | 28 | #define V86_FLAGS 0x40000 /* Return flags */ |
| | 29 | |
| | 30 | struct __v86 { |
| | 31 | uint32_t ctl; /* Control flags */ |
| | 32 | uint32_t addr; /* Interrupt number or address */ |
| | 33 | uint32_t es; /* V86 ES register */ |
| | 34 | uint32_t ds; /* V86 DS register */ |
| | 35 | uint32_t fs; /* V86 FS register */ |
| | 36 | uint32_t gs; /* V86 GS register */ |
| | 37 | uint32_t eax; /* V86 EAX register */ |
| | 38 | uint32_t ecx; /* V86 ECX register */ |
| | 39 | uint32_t edx; /* V86 EDX register */ |
| | 40 | uint32_t ebx; /* V86 EBX register */ |
| | 41 | uint32_t efl; /* V86 eflags register */ |
| | 42 | uint32_t ebp; /* V86 EBP register */ |
| | 43 | uint32_t esi; /* V86 ESI register */ |
| | 44 | uint32_t edi; /* V86 EDI register */ |
| | 45 | }; |
| | 46 | |
| | 47 | extern struct __v86 __v86; /* V86 interface structure */ |
| | 48 | void __v86int(void); |
| | 49 | |
| | 50 | #define v86 __v86 |
| | 51 | #define v86int __v86int |
| | 52 | |
| | 53 | extern u_int32_t __base; |
| | 54 | extern u_int32_t __args; |
| | 55 | |
| | 56 | #define PTOV(pa) ((caddr_t)(pa) - __base) |
| | 57 | #define VTOP(va) ((vm_offset_t)(va) + __base) |
| | 58 | #define VTOPSEG(va) (u_int16_t)(VTOP((caddr_t)va) >> 4) |
| | 59 | #define VTOPOFF(va) (u_int16_t)(VTOP((caddr_t)va) & 0xf) |
| | 60 | |
| | 61 | void __exit(int) __attribute__((__noreturn__)); |
| | 62 | void __exec(caddr_t, ...); |
| | 63 | |
| | 64 | #endif /* !_BTXV86_H_ */ |
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