145 lines
4.7 KiB
C
145 lines
4.7 KiB
C
/*
|
|
*
|
|
* Copyright © 2000 Keith Packard
|
|
*
|
|
* Permission to use, copy, modify, distribute, and sell this software and its
|
|
* documentation for any purpose is hereby granted without fee, provided that
|
|
* the above copyright notice appear in all copies and that both that
|
|
* copyright notice and this permission notice appear in supporting
|
|
* documentation, and that the name of Keith Packard not be used in
|
|
* advertising or publicity pertaining to distribution of the software without
|
|
* specific, written prior permission. Keith Packard makes no
|
|
* representations about the suitability of this software for any purpose. It
|
|
* is provided "as is" without express or implied warranty.
|
|
*
|
|
* KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
|
|
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
|
|
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
|
|
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
/*
|
|
Copyright (c) 2000 by Juliusz Chroboczek
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef _VM86_H_
|
|
#define _VM86_H_
|
|
|
|
#include <stdlib.h>
|
|
#include <errno.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <sys/mman.h>
|
|
#include <asm/vm86.h>
|
|
#include <sys/io.h>
|
|
|
|
#include <X11/X.h>
|
|
#include <X11/Xproto.h>
|
|
#include <X11/Xos.h>
|
|
#include "os.h"
|
|
|
|
#ifndef IF_MASK
|
|
#define IF_MASK X86_EFLAGS_IF
|
|
#endif
|
|
#ifndef IOPL_MASK
|
|
#define IOPL_MASK X86_EFLAGS_IOPL
|
|
#endif
|
|
|
|
typedef unsigned char U8;
|
|
typedef unsigned short U16;
|
|
typedef unsigned int U32;
|
|
|
|
/* The whole addressable memory */
|
|
#define SYSMEM_BASE 0x00000
|
|
#define SYSMEM_SIZE 0x100000
|
|
|
|
/* Interrupt vectors and BIOS data area */
|
|
/* This is allocated privately from /dev/mem */
|
|
#define MAGICMEM_BASE 0x00000
|
|
#define MAGICMEM_SIZE 0x01000
|
|
|
|
/* The low memory, allocated privately from /dev/zero */
|
|
/* 64KB should be enough for anyone, as they used to say */
|
|
#define LOMEM_BASE 0x10000
|
|
#define LOMEM_SIZE 0x10000
|
|
|
|
/* The video memory and BIOS ROM, allocated shared from /dev/mem */
|
|
#define HIMEM_BASE 0xA0000
|
|
#define HIMEM_SIZE (SYSMEM_BASE + SYSMEM_SIZE - HIMEM_BASE)
|
|
|
|
#define HOLE1_BASE (MAGICMEM_BASE + MAGICMEM_SIZE)
|
|
#define HOLE1_SIZE (LOMEM_BASE - HOLE1_BASE)
|
|
|
|
#define HOLE2_BASE (LOMEM_BASE + LOMEM_SIZE)
|
|
#define HOLE2_SIZE (HIMEM_BASE - HOLE2_BASE)
|
|
|
|
/* The BIOS ROM */
|
|
#define ROM_BASE 0xC0000
|
|
#define ROM_SIZE 0x30000
|
|
|
|
#define STACK_SIZE 0x1000
|
|
|
|
#define POINTER_SEGMENT(ptr) (((unsigned int)ptr)>>4)
|
|
#define POINTER_OFFSET(ptr) (((unsigned int)ptr)&0x000F)
|
|
#define MAKE_POINTER(seg, off) (((((unsigned int)(seg))<<4) + (unsigned int)(off)))
|
|
#define MAKE_POINTER_1(lw) MAKE_POINTER(((lw)&0xFFFF0000)/0x10000, (lw)&0xFFFF)
|
|
#define ALLOC_FAIL ((U32)-1)
|
|
|
|
typedef struct _Vm86InfoRec {
|
|
void *magicMem, *loMem, *hiMem;
|
|
void *hole1, *hole2;
|
|
U32 brk;
|
|
struct vm86_struct vms;
|
|
U32 ret_code, stack_base;
|
|
} Vm86InfoRec, *Vm86InfoPtr;
|
|
|
|
#define LM(vi,i) (((U8*)vi->loMem)[i-LOMEM_BASE])
|
|
#define LMW(vi,i) (*(U16*)(&LM(vi,i)))
|
|
#define LML(vi,i) (*(U32*)(&LM(vi,i)))
|
|
#define MM(vi,i) (((U8*)vi->magicMem)[i-MAGICMEM_BASE])
|
|
#define MMW(vi,i) (*(U16*)(&MM(vi,i)))
|
|
#define MML(vi,i) (*(U32*)(&MM(vi,i)))
|
|
#define HM(vi,i) (((U8*)vi->hiMem)[i-HIMEM_BASE])
|
|
#define HMW(vi,i) (*(U16*)(&MM(vi,i)))
|
|
#define HML(vi,i) (*(U32*)(&MM(vi,i)))
|
|
|
|
Vm86InfoPtr Vm86Setup(int);
|
|
|
|
void Vm86Cleanup(Vm86InfoPtr vi);
|
|
|
|
int Vm86DoInterrupt(Vm86InfoPtr vi, int num);
|
|
|
|
int Vm86DoPOST(Vm86InfoPtr vi);
|
|
|
|
U8 Vm86Memory(Vm86InfoPtr, U32);
|
|
|
|
U16 Vm86MemoryW(Vm86InfoPtr, U32);
|
|
|
|
int Vm86AllocateMemory(Vm86InfoPtr, int);
|
|
|
|
int Vm86MarkMemory(Vm86InfoPtr vi);
|
|
|
|
void Vm86ReleaseMemory(Vm86InfoPtr vi, int mark);
|
|
|
|
#endif /* _VM86_H_ */
|