100 lines
3.0 KiB
C
100 lines
3.0 KiB
C
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/*****************************************************************************
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*
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* POKEY chip emulator 4.3
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* Copyright Nicola Salmoria and the MAME Team
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*
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* Based on original info found in Ron Fries' Pokey emulator,
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* with additions by Brad Oliver, Eric Smith and Juergen Buchmueller.
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* paddle (a/d conversion) details from the Atari 400/800 Hardware Manual.
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* Polynome algorithms according to info supplied by Perry McFarlane.
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*
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* This code is subject to the MAME license, which besides other
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* things means it is distributed as is, no warranties whatsoever.
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* For more details read mame.txt that comes with MAME.
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*
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*****************************************************************************/
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#pragma once
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//#include "devlegcy.h"
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/* CONSTANT DEFINITIONS */
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/* POKEY WRITE LOGICALS */
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#define AUDF1_C 0x00
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#define AUDC1_C 0x01
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#define AUDF2_C 0x02
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#define AUDC2_C 0x03
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#define AUDF3_C 0x04
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#define AUDC3_C 0x05
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#define AUDF4_C 0x06
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#define AUDC4_C 0x07
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#define AUDCTL_C 0x08
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#define STIMER_C 0x09
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#define SKREST_C 0x0A
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#define POTGO_C 0x0B
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#define SEROUT_C 0x0D
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#define IRQEN_C 0x0E
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#define SKCTL_C 0x0F
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/* POKEY READ LOGICALS */
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#define POT0_C 0x00
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#define POT1_C 0x01
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#define POT2_C 0x02
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#define POT3_C 0x03
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#define POT4_C 0x04
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#define POT5_C 0x05
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#define POT6_C 0x06
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#define POT7_C 0x07
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#define ALLPOT_C 0x08
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#define KBCODE_C 0x09
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#define RANDOM_C 0x0A
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#define SERIN_C 0x0D
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#define IRQST_C 0x0E
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#define SKSTAT_C 0x0F
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/* exact 1.79 MHz clock freq (of the Atari 800 that is) */
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#define FREQ_17_EXACT 1789790
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/*****************************************************************************
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* pot0_r to pot7_r:
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* Handlers for reading the pot values. Some Atari games use
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* ALLPOT to return dipswitch settings and other things.
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* serin_r, serout_w, interrupt_cb:
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* New function pointers for serial input/output and a interrupt callback.
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*****************************************************************************/
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/*typedef struct _pokey_interface pokey_interface;
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struct _pokey_interface
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{
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devcb_read8 pot_r[8];
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devcb_read8 allpot_r;
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devcb_read8 serin_r;
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devcb_write8 serout_w;
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void (*interrupt_cb)(device_t *device, int mask);
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};*/
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void pokey_update(void *chip, stream_sample_t **outputs, int samples);
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int device_start_pokey(void **chip, int clock);
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void device_stop_pokey(void *chip);
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void device_reset_pokey(void *chip);
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//READ8_DEVICE_HANDLER( pokey_r );
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//WRITE8_DEVICE_HANDLER( pokey_w );
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UINT8 pokey_r(void *chip, offs_t offset);
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void pokey_w(void *chip, offs_t offset, UINT8 data);
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/* fix me: eventually this should be a single device with pokey subdevices */
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//READ8_HANDLER( quad_pokey_r );
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//WRITE8_HANDLER( quad_pokey_w );
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/*void pokey_serin_ready (device_t *device, int after);
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void pokey_break_w (device_t *device, int shift);
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void pokey_kbcode_w (device_t *device, int kbcode, int make);*/
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void pokey_set_mute_mask(void *chip, UINT32 MuteMask);
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//DECLARE_LEGACY_SOUND_DEVICE(POKEY, pokey);
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