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/* This is file go32.h */

/*

** Copyright (C) 1993 DJ Delorie

**

** This file is distributed under the terms listed in the document

** "copying.dj".

** A copy of "copying.dj" should accompany this file; if not, a copy

** should be available from where this file was obtained.  This file

** may not be distributed without a verbatim copy of "copying.dj".

**

** This file is distributed WITHOUT ANY WARRANTY; without even the implied

** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

*/

#ifndef _GO32_H_

#define _GO32_H_

#include <sys/types.h>

#ifdef __cplusplus

extern "C" {

#endif

/* This must match go32/proginfo.h */

typedef struct {

  u_long size_of_this_structure_in_bytes;

  u_long linear_address_of_primary_screen;

  u_long linear_address_of_secondary_screen;

  u_long linear_address_of_transfer_buffer;

  u_long size_of_transfer_buffer; /* >= 4k */

  u_long pid;

  u_char master_interrupt_controller_base;

  u_char slave_interrupt_controller_base;

  u_short selector_for_linear_memory;

  u_long linear_address_of_stub_info_structure;

  u_long linear_address_of_original_psp;

  u_short run_mode;

  u_short run_mode_info;

} Go32_Info_Block;

extern Go32_Info_Block _go32_info_block;

#define _GO32_RUN_MODE_UNDEF    0

#define _GO32_RUN_MODE_RAW      1

#define _GO32_RUN_MODE_XMS      2

#define _GO32_RUN_MODE_VCPI     3

#define _GO32_RUN_MODE_DPMI     4

void dosmemget(int offset, int length, void *buffer);

void dosmemput(const void *buffer, int length, int offset);

void movedata(unsigned source_selector, unsigned source_offset,

              unsigned dest_selector, unsigned dest_offset,

              size_t length);

/* returns number of times hit since last call. (zero first time) */

u_long _go32_was_ctrl_break_hit(void);

void   _go32_want_ctrl_break(int yes); /* auto-yes if call above function */

u_short _go32_my_cs(void);

u_short _go32_my_ds(void);

u_short _go32_my_ss(void);

u_short _go32_conventional_mem_selector(void);

#ifdef __cplusplus

}

#endif

#endif