72 lines
2.9 KiB
C
72 lines
2.9 KiB
C
/***************************************************************************
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* Gens: PWM audio emulator. *
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* *
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* Copyright (c) 1999-2002 by Stéphane Dallongeville *
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* Copyright (c) 2003-2004 by Stéphane Akhoun *
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* Copyright (c) 2008 by David Korth *
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* *
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* This program is free software; you can redistribute it and/or modify it *
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* under the terms of the GNU General Public License as published by the *
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* Free Software Foundation; either version 2 of the License, or (at your *
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* option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, but *
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* WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License along *
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* with this program; if not, write to the Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#define PWM_BUF_SIZE 4
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#include "mamedef.h"
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/*extern unsigned char PWM_FULL_TAB[PWM_BUF_SIZE * PWM_BUF_SIZE];
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extern unsigned short PWM_FIFO_R[8];
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extern unsigned short PWM_FIFO_L[8];
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extern unsigned int PWM_RP_R;
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extern unsigned int PWM_WP_R;
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extern unsigned int PWM_RP_L;
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extern unsigned int PWM_WP_L;
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extern unsigned int PWM_Cycles;
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extern unsigned int PWM_Cycle;
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extern unsigned int PWM_Cycle_Cnt;
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extern unsigned int PWM_Int;
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extern unsigned int PWM_Int_Cnt;
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extern unsigned int PWM_Mode;
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extern unsigned int PWM_Enable;
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extern unsigned int PWM_Out_R;
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extern unsigned int PWM_Out_L;*/
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//void PWM_Init(void);
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//void PWM_Recalc_Scale(void);
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/* Functions called by x86 asm. */
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//void PWM_Set_Cycle(unsigned int cycle);
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//void PWM_Set_Int(unsigned int int_time);
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/* Functions called by C/C++ code only. */
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//void PWM_Clear_Timer(void);
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//void PWM_Update_Timer(unsigned int cycle);
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//void PWM_Update(int **buf, int length);
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#ifdef __cplusplus
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extern "C" {
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#endif
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void pwm_update(void *chip, stream_sample_t **outputs, int samples);
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void * device_start_pwm(int clock);
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void device_stop_pwm(void *chip);
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void device_reset_pwm(void *chip);
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void pwm_chn_w(void *chip, UINT8 Channel, UINT16 data);
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#ifdef __cplusplus
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}
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#endif
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