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FreeWare Collection 3
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FreeSoftwareCollection3pd199x-jp.img
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pao
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ms_dos
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src
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evol.c
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1980-01-02
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/** << MSC V5.1 >> ************************************************************
**
** EVOL : 電子ボリューム操作プログラム ( マイクはOFF )
**
** ----- HISTORY -----
** 1990.02.22 : CREATE
** 1990.07.03 : MUTE Check 追加
**
** Programed by Y.Hirata ( Nifty ID : NAB03321 )
**
******************************************************************************/
#include <stdio.h>
#include <dos.h>
#include <stdlib.h>
#include <conio.h>
#include "evol.h"
/*********************** Electronics Volume Set ****************************/
/*
** < INPUT > : vol ... 0 ~ 63 [dec] ( 可変電子ボリューム )
** < OUTPUT > : none
** < RETURN > : none
*/
void evs( unsigned char vol )
{
outp( MUTE_REG,A_MUTE_OFF ) ; /* ALL Mute Control : Mute Off */
outp( EVOL_REG1,LINE_L_VAR ) ; /* Electronics Volume : Line in (L) */
outp( EVOL_REG0,vol ) ; /* Electronics Volume : Line in data */
outp( EVOL_REG1,LINE_R_VAR ); /* Electronics Volume : Line in (R) */
outp( EVOL_REG0,vol ) ; /* Electronics Volume : Line in data */
outp( EVOL_REG1,TV_L_VAR ) ; /* Electronics Volume : TV in (L) */
outp( EVOL_REG0,vol ) ; /* Electronics Volume : Line in data */
outp( EVOL_REG1,TV_R_VAR ) ; /* Electronics Volume : TV in (L) */
outp( EVOL_REG0,vol ) ; /* Electronics Volume : Line in data */
outp( EVOL_REG3,CD_L_VAR ) ; /* Electronics Volume : CD out (L) */
outp( EVOL_REG2,vol ) ; /* CD & MIC & Modem data */
outp( EVOL_REG3,CD_R_VAR ) ; /* Electronics Volume : CD out (R) */
outp( EVOL_REG2,vol ) ; /* CD & MIC & Modem data */
outp( EVOL_REG3,MIC_OFF ) ; /* Electronics Volume : MIC in */
outp( EVOL_REG2,ZERO ) ; /* CD & MIC & Modem data */
outp( EVOL_REG3,MODEM_VAR ) ; /* Electronics Volume : MODEM out */
outp( EVOL_REG2,vol ) ; /* CD & MIC & Modem data */
}
/**************************** MUTE 確認 **************************************/
/*
** < RETURN > : = TRUE - MUTE ON
** = FALSE - MUTE OFF
*/
int mutechk()
{
if ( (inp( MUTE_REG ) & 0x40) == 0x40 ) {
return( FALSE ) ;
} else {
return( TRUE ) ;
}
}
/**************************** MUTE 設定 **************************************/
void muteon()
{
outp( MUTE_REG,A_MUTE_ON ) ; /* ALL Mute Control : Mute On */
}
/**************************** MUTE 解除 **************************************/
void muteoff()
{
outp( MUTE_REG,A_MUTE_OFF ) ; /* ALL Mute Control : Mute Off */
}
/**************************** Volume MAX *************************************/
void VolMax()
{
evs( VOL_MAX );
}