newlib-cygwin/newlib/libc/sys/go32/go32.h

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2000-02-18 03:39:52 +08:00
/* This is file go32.h */
/*
** Copyright (C) 1993 DJ Delorie
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**
** This file is distributed under the terms listed in the document
** "copying.dj".
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** 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 _go32_want_ctrl_break(int yes); /* auto-yes if call above function */
u_short _go32_my_cs();
u_short _go32_my_ds();
u_short _go32_my_ss();
u_short _go32_conventional_mem_selector();
#ifdef __cplusplus
}
#endif
#endif