57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
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/*
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** The contents of this file are subject to the Mozilla Public License
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** Version 1.1 (the "License"); you may not use this file except in compliance
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** with the License. You may obtain a copy of the License at
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** http://www.mozilla.org/MPL/
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**
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** Software distributed under the License is distributed on an "AS IS" basis,
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** WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for
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** the specific language governing rights and limitations under the License.
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*/
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#include "doskb.h"
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#include <stdlib.h>
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#include <memory.h>
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#include <dos.h>
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#include <conio.h>
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char keyMap[128];
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char last_key;
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void (__interrupt __far* __keyboard_interrupt)();
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void __interrupt __far keyboard_interrupt(void)
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{
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char c = inp(0x60);
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keyMap[last_key = c & 0x7F] = !(c & 0x80);
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outp(0x20, 0x20);
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}
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void keyboard_remove(void)
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{
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_disable();
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if (__keyboard_interrupt)
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{
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_dos_setvect(9, __keyboard_interrupt);
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__keyboard_interrupt = 0;
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}
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_enable();
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}
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void keyboard_install(void)
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{
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_disable();
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if (!__keyboard_interrupt)
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{
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memset(keyMap, 0, sizeof(keyMap));
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__keyboard_interrupt = _dos_getvect(9);
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_dos_setvect(9, keyboard_interrupt);
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}
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_enable();
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}
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