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- /**
- ** TCGETKEY.C
- **
- ** Copyright (C) 1992, Csaba Biegl
- ** 820 Stirrup Dr, Nashville, TN, 37221
- ** csaba@vuse.vanderbilt.edu
- **
- ** This file is distributed under the terms listed in the document
- ** "copying.cb", available from the author at the address above.
- ** A copy of "copying.cb" 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.cb".
- ** You should also have received a copy of the GNU General Public
- ** License along with this program (it is in the file "copying");
- ** if not, write to the Free Software Foundation, Inc., 675 Mass Ave,
- ** Cambridge, MA 02139, USA.
- **
- ** This program is distributed in the hope that it will be useful,
- ** but WITHOUT ANY WARRANTY; without even the implied warranty of
- ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- ** GNU General Public License for more details.
- **/
-
- #include "grx.h"
- #include "mousex.h"
- #include <dos.h>
-
- #ifdef USE_AT_BIOS
- #define BIOS_CALL_OFFSET 0x1000
- #else
- #define BIOS_CALL_OFFSET 0
- #endif
-
- int getkey(void)
- {
- _AX = 0 + BIOS_CALL_OFFSET;
- geninterrupt(0x16);
- #ifdef USE_AT_BIOS
- return(((_AL != 0) && (_AL != 0xe0)) ? _AL : _AH + 0x100);
- #else
- return((_AL != 0) ? _AL : _AH + 0x100);
- #endif
- }
-
- int getxkey(void)
- {
- _AX = 0 + BIOS_CALL_OFFSET;
- geninterrupt(0x16);
- #ifdef USE_AT_BIOS
- return((_AL == 0) ? _AH + 0x100 : (_AL == 0xe0) ? _AH + 0x200 : _AL);
- #else
- return((_AL != 0) ? _AL : _AH + 0x100);
- #endif
- }
-
- int getkbstat(void)
- {
- _AX = 0x200 + BIOS_CALL_OFFSET;
- geninterrupt(0x16);
- return(_AL);
- }
-