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/****************************************************************************
*
* SciTech OS Portability Manager Library
*
* ========================================================================
*
* The contents of this file are subject to the SciTech MGL Public
* License Version 1.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.scitechsoft.com/mgl-license.txt
*
* Software distributed under the License is distributed on an
* "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
* implied. See the License for the specific language governing
* rights and limitations under the License.
*
* The Original Code is Copyright (C) 1991-1998 SciTech Software, Inc.
*
* The Initial Developer of the Original Code is SciTech Software, Inc.
* All Rights Reserved.
*
* ========================================================================
*
* Language: ANSI C
* Environment: any
*
* Description: Test program to check the ability to manipulate the
* BIOS data area from protected mode using the PM
* library. Compile and link with the appropriate command
* line for your DOS extender.
*
* Functions tested: PM_getBIOSSelector()
* PM_getLong()
* PM_getByte()
* PM_getWord()
*
****************************************************************************/
#include <stdlib.h>
#include <stdio.h>
#include "pmapi.h"
/* Macros to obtain values from the BIOS data area */
#define TICKS() PM_getLong(bios+0x6C)
#define KB_STAT PM_getByte(bios+0x17)
#define KB_HEAD PM_getWord(bios+0x1A)
#define KB_TAIL PM_getWord(bios+0x1C)
/* Macros for working with the keyboard buffer */
#define KB_HIT() (KB_HEAD != KB_TAIL)
#define CTRL() (KB_STAT & 4)
#define SHIFT() (KB_STAT & 2)
#define ESC 0x1B
/* Selector for BIOS data area */
uchar *bios;
int main(void)
{
int c,done = 0;
printf("Program running in ");
switch (PM_getModeType()) {
case PM_realMode:
printf("real mode.\n\n");
break;
case PM_286:
printf("16 bit protected mode.\n\n");
break;
case PM_386:
printf("32 bit protected mode.\n\n");
break;
}
bios = PM_getBIOSPointer();
printf("Hit any key to test, Ctrl-Shift-Esc to quit\n");
while (!done) {
if (KB_HIT()) {
c = PM_getch();
if (c == 0) PM_getch();
printf("TIME=%-8lX ST=%02X CHAR=%02X ", TICKS(), KB_STAT, c);
printf("\n");
if ((c == ESC) && SHIFT() && CTRL())/* Ctrl-Shift-Esc */
break;
}
}
return 0;
}
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