kopia lustrzana https://github.com/Jean-MarcHarvengt/MCUME
121 wiersze
3.9 KiB
C
121 wiersze
3.9 KiB
C
#ifndef POKEY_H_
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#define POKEY_H_
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#include "atari.h"
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#define POKEY_OFFSET_AUDF1 0x00
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#define POKEY_OFFSET_AUDC1 0x01
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#define POKEY_OFFSET_AUDF2 0x02
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#define POKEY_OFFSET_AUDC2 0x03
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#define POKEY_OFFSET_AUDF3 0x04
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#define POKEY_OFFSET_AUDC3 0x05
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#define POKEY_OFFSET_AUDF4 0x06
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#define POKEY_OFFSET_AUDC4 0x07
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#define POKEY_OFFSET_AUDCTL 0x08
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#define POKEY_OFFSET_STIMER 0x09
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#define POKEY_OFFSET_SKRES 0x0a
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#define POKEY_OFFSET_POTGO 0x0b
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#define POKEY_OFFSET_SEROUT 0x0d
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#define POKEY_OFFSET_IRQEN 0x0e
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#define POKEY_OFFSET_SKCTL 0x0f
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#define POKEY_OFFSET_POT0 0x00
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#define POKEY_OFFSET_POT1 0x01
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#define POKEY_OFFSET_POT2 0x02
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#define POKEY_OFFSET_POT3 0x03
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#define POKEY_OFFSET_POT4 0x04
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#define POKEY_OFFSET_POT5 0x05
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#define POKEY_OFFSET_POT6 0x06
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#define POKEY_OFFSET_POT7 0x07
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#define POKEY_OFFSET_ALLPOT 0x08
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#define POKEY_OFFSET_KBCODE 0x09
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#define POKEY_OFFSET_RANDOM 0x0a
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#define POKEY_OFFSET_SERIN 0x0d
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#define POKEY_OFFSET_IRQST 0x0e
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#define POKEY_OFFSET_SKSTAT 0x0f
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#define POKEY_OFFSET_POKEY2 0x10 /* offset to second pokey chip (STEREO expansion) */
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#ifndef ASAP
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extern UBYTE POKEY_KBCODE;
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extern UBYTE POKEY_IRQST;
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extern UBYTE POKEY_IRQEN;
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extern UBYTE POKEY_SKSTAT;
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extern UBYTE POKEY_SKCTL;
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extern int POKEY_DELAYED_SERIN_IRQ;
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extern int POKEY_DELAYED_SEROUT_IRQ;
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extern int POKEY_DELAYED_XMTDONE_IRQ;
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extern UBYTE POKEY_POT_input[8];
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ULONG POKEY_GetRandomCounter(void);
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void POKEY_SetRandomCounter(ULONG value);
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UBYTE POKEY_GetByte(UWORD addr, int no_side_effects);
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void POKEY_PutByte(UWORD addr, UBYTE byte);
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int POKEY_Initialise(void);
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void POKEY_Frame(void);
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void POKEY_Scanline(void);
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void POKEY_StateSave(void);
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void POKEY_StateRead(void);
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#endif
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/* CONSTANT DEFINITIONS */
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/* definitions for AUDCx (D201, D203, D205, D207) */
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#define POKEY_NOTPOLY5 0x80 /* selects POLY5 or direct CLOCK */
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#define POKEY_POLY4 0x40 /* selects POLY4 or POLY17 */
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#define POKEY_PURETONE 0x20 /* selects POLY4/17 or PURE tone */
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#define POKEY_VOL_ONLY 0x10 /* selects VOLUME OUTPUT ONLY */
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#define POKEY_VOLUME_MASK 0x0f /* volume mask */
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/* definitions for AUDCTL (D208) */
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#define POKEY_POLY9 0x80 /* selects POLY9 or POLY17 */
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#define POKEY_CH1_179 0x40 /* selects 1.78979 MHz for Ch 1 */
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#define POKEY_CH3_179 0x20 /* selects 1.78979 MHz for Ch 3 */
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#define POKEY_CH1_CH2 0x10 /* clocks channel 1 w/channel 2 */
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#define POKEY_CH3_CH4 0x08 /* clocks channel 3 w/channel 4 */
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#define POKEY_CH1_FILTER 0x04 /* selects channel 1 high pass filter */
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#define POKEY_CH2_FILTER 0x02 /* selects channel 2 high pass filter */
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#define POKEY_CLOCK_15 0x01 /* selects 15.6999kHz or 63.9210kHz */
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/* for accuracy, the 64kHz and 15kHz clocks are exact divisions of
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the 1.79MHz clock */
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#define POKEY_DIV_64 28 /* divisor for 1.79MHz clock to 64 kHz */
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#define POKEY_DIV_15 114 /* divisor for 1.79MHz clock to 15 kHz */
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/* the size (in entries) of the 4 polynomial tables */
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#define POKEY_POLY4_SIZE 0x000f
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#define POKEY_POLY5_SIZE 0x001f
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#define POKEY_POLY9_SIZE 511 //0x01ff
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#define POKEY_POLY17_SIZE 16385//0x0001ffff
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#define POKEY_MAXPOKEYS 2 /* max number of emulated chips */
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/* channel/chip definitions */
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#define POKEY_CHAN1 0
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#define POKEY_CHAN2 1
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#define POKEY_CHAN3 2
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#define POKEY_CHAN4 3
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#define POKEY_CHIP1 0
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#define POKEY_CHIP2 4
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#define POKEY_CHIP3 8
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#define POKEY_CHIP4 12
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#define POKEY_SAMPLE 127
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/* structures to hold the 9 pokey control bytes */
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extern UBYTE POKEY_AUDF[4 * POKEY_MAXPOKEYS]; /* AUDFx (D200, D202, D204, D206) */
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extern UBYTE POKEY_AUDC[4 * POKEY_MAXPOKEYS]; /* AUDCx (D201, D203, D205, D207) */
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extern UBYTE POKEY_AUDCTL[POKEY_MAXPOKEYS]; /* AUDCTL (D208) */
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extern int POKEY_DivNIRQ[4], POKEY_DivNMax[4];
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extern int POKEY_Base_mult[POKEY_MAXPOKEYS]; /* selects either 64Khz or 15Khz clock mult */
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extern const UBYTE POKEY_poly9_lookup[POKEY_POLY9_SIZE];
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extern const UBYTE POKEY_poly17_lookup[POKEY_POLY17_SIZE];
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#endif /* POKEY_H_ */
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