72 lines
2.4 KiB
C
72 lines
2.4 KiB
C
/*
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** Copyright (C) 1991 DJ Delorie
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**
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** This file is distributed under the terms listed in the document
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** "copying.dj".
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** A copy of "copying.dj" should accompany this file; if not, a copy
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** should be available from where this file was obtained. This file
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** may not be distributed without a verbatim copy of "copying.dj".
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**
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** This file is distributed WITHOUT ANY WARRANTY; without even the implied
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** warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**
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** Modified by J. Alan Eldridge, Liberty Brokerage, 77 Water St, NYC 10005
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**
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** added getxkey(), which can read extended keystrokes that start with
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** 0xE0, as well as those which start with 0x00
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**
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** added global char ScreenAttrib, the attribute used by ScreenClear():
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** it defaults to 0x07 so as not to break existing code.
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**
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** added ScreenMode(), to return the current video mode
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*/
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#ifndef _PC_H_
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#define _PC_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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unsigned char inportb(unsigned short port);
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unsigned short inportw(unsigned short port);
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unsigned long inportl(unsigned short port);
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unsigned char inportsb(unsigned short port, unsigned char *buf, unsigned len);
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unsigned short inportsw(unsigned short port, unsigned short *buf, unsigned len);
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unsigned long inportsl(unsigned short port, unsigned long *buf, unsigned len);
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void outportb(unsigned short port, unsigned char data);
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void outportw(unsigned short port, unsigned short data);
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void outportl(unsigned short port, unsigned long data);
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void outportsb(unsigned short port, unsigned char *buf, unsigned len);
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void outportsw(unsigned short port, unsigned short *buf, unsigned len);
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void outportsl(unsigned short port, unsigned long *buf, unsigned len);
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int kbhit(void);
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int getkey(void); /* ALT's have 0x100 set */
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int getxkey(void); /* ALT's have 0x100 set, 0xe0 sets 0x200 */
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void sound(int frequency);
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#define nosound() sound(0)
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extern unsigned char ScreenAttrib;
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extern short *ScreenPrimary;
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extern short *ScreenSecondary;
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/* For the primary screen: */
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int ScreenMode(void);
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int ScreenRows(void);
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int ScreenCols(void);
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void ScreenPutChar(int ch, int attr, int x, int y);
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void ScreenSetCursor(int row, int col);
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void ScreenGetCursor(int *row, int *col);
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void ScreenClear(void);
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void ScreenUpdate(void *virtual_screen);
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void ScreenUpdateLine(void *virtual_screen_line, int row);
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void ScreenRetrieve(void *virtual_screen);
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#ifdef __cplusplus
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}
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#endif
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#endif
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