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/* $Id: sound.c 9 2024-08-28 16:35:27Z nishi $ */
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/* $Id: sound.c 10 2024-08-29 01:39:27Z nishi $ */
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#include "sound.h"
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#include "sound.h"
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#include "io.h"
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#include "io.h"
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short psg_addr;
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short psg_addr;
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short psg_data;
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short psg_data;
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void beep(void){
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void beep(void){
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	_beep(3L * 1024);
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	_beep(1L * 1024);
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}
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}
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void _beep(unsigned long howlong){
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void _beep(unsigned long howlong){
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	if(psg_addr == -1) return;
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	if(psg_addr == -1) return;
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	unsigned long i;
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	unsigned long i;
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	outp(psg_addr, 8);
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	outp(psg_addr, 8);
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	outp(psg_data, 0x0f);
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	outp(psg_data, 0x0f);
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	outp(psg_addr, 0);
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	outp(psg_addr, 0);
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	outp(psg_data, 0xd6);
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	outp(psg_data, 0xb0);
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	outp(psg_addr, 1);
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	outp(psg_addr, 1);
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	outp(psg_data, 0x0);
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	outp(psg_data, 0x0);
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	outp(psg_addr, 7);
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	outp(psg_addr, 7);