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

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2000-02-18 03:39:52 +08:00
/*
** Copyright (C) 1991 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.
**
** Modified by J. Alan Eldridge, Liberty Brokerage, 77 Water St, NYC 10005
**
** added getxkey(), which can read extended keystrokes that start with
** 0xE0, as well as those which start with 0x00
**
** added global char ScreenAttrib, the attribute used by ScreenClear():
** it defaults to 0x07 so as not to break existing code.
**
** added ScreenMode(), to return the current video mode
*/
#ifndef _PC_H_
#define _PC_H_
#ifdef __cplusplus
extern "C" {
#endif
unsigned char inportb(unsigned short port);
unsigned short inportw(unsigned short port);
unsigned long inportl(unsigned short port);
unsigned char inportsb(unsigned short port, unsigned char *buf, unsigned len);
unsigned short inportsw(unsigned short port, unsigned short *buf, unsigned len);
unsigned long inportsl(unsigned short port, unsigned long *buf, unsigned len);
void outportb(unsigned short port, unsigned char data);
void outportw(unsigned short port, unsigned short data);
void outportl(unsigned short port, unsigned long data);
void outportsb(unsigned short port, unsigned char *buf, unsigned len);
void outportsw(unsigned short port, unsigned short *buf, unsigned len);
void outportsl(unsigned short port, unsigned long *buf, unsigned len);
int kbhit(void);
int getkey(void); /* ALT's have 0x100 set */
int getxkey(void); /* ALT's have 0x100 set, 0xe0 sets 0x200 */
void sound(int frequency);
#define nosound() sound(0)
extern unsigned char ScreenAttrib;
extern short *ScreenPrimary;
extern short *ScreenSecondary;
/* For the primary screen: */
int ScreenMode(void);
int ScreenRows(void);
int ScreenCols(void);
void ScreenPutChar(int ch, int attr, int x, int y);
void ScreenSetCursor(int row, int col);
void ScreenGetCursor(int *row, int *col);
void ScreenClear(void);
void ScreenUpdate(void *virtual_screen);
void ScreenUpdateLine(void *virtual_screen_line, int row);
void ScreenRetrieve(void *virtual_screen);
#ifdef __cplusplus
}
#endif
#endif