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/*
Copyright (C) 1996-1997 Id Software, Inc.
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
//
// dosisms.h: I'd call it dos.h, but the name's taken
//
#ifndef _DOSISMS_H_
#define _DOSISMS_H_
int dos_lockmem(void *addr, int size);
int dos_unlockmem(void *addr, int size);
typedef union {
struct {
unsigned long edi;
unsigned long esi;
unsigned long ebp;
unsigned long res;
unsigned long ebx;
unsigned long edx;
unsigned long ecx;
unsigned long eax;
} d;
struct {
unsigned short di, di_hi;
unsigned short si, si_hi;
unsigned short bp, bp_hi;
unsigned short res, res_hi;
unsigned short bx, bx_hi;
unsigned short dx, dx_hi;
unsigned short cx, cx_hi;
unsigned short ax, ax_hi;
unsigned short flags;
unsigned short es;
unsigned short ds;
unsigned short fs;
unsigned short gs;
unsigned short ip;
unsigned short cs;
unsigned short sp;
unsigned short ss;
} x;
struct {
unsigned char edi[4];
unsigned char esi[4];
unsigned char ebp[4];
unsigned char res[4];
unsigned char bl, bh, ebx_b2, ebx_b3;
unsigned char dl, dh, edx_b2, edx_b3;
unsigned char cl, ch, ecx_b2, ecx_b3;
unsigned char al, ah, eax_b2, eax_b3;
} h;
} regs_t;
unsigned int ptr2real(void *ptr);
void *real2ptr(unsigned int real);
void *far2ptr(unsigned int farptr);
unsigned int ptr2far(void *ptr);
int dos_inportb(int port);
int dos_inportw(int port);
void dos_outportb(int port, int val);
void dos_outportw(int port, int val);
void dos_irqenable(void);
void dos_irqdisable(void);
void dos_registerintr(int intr, void (*handler)(void));
void dos_restoreintr(int intr);
int dos_int86(int vec);
void *dos_getmemory(int size);
void dos_freememory(void *ptr);
void dos_usleep(int usecs);
int dos_getheapsize(void);
extern regs_t regs;
#endif // _DOSISMS_H_
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