view rf5c164.h @ 2321:2eda5f81f91e

More fully baked ROM db support for SMS
author Michael Pavone <pavone@retrodev.com>
date Thu, 15 Jun 2023 09:36:11 -0700
parents 9ead0fe69d9b
children
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#ifndef RF5C164_H_
#define RF5C164_H_
#include <stdint.h>
#include "render_audio.h"
#include "oscilloscope.h"
#include "serialize.h"

typedef struct {
	uint32_t cur_ptr;
	uint8_t  regs[7];
	uint8_t  sample;
	uint8_t  state;
	uint8_t  scope_channel;
	uint8_t  trigger;
} rf5c164_channel;

typedef struct {
	audio_source    *audio;
	oscilloscope    *scope;
	uint32_t        cycle;
	uint32_t        clock_step;
	uint16_t        ram[64*1024];
	uint16_t        ram_bank;
	uint16_t        pending_address;
	int32_t         left;
	int32_t         right;
	rf5c164_channel channels[8];
	uint8_t         pending_byte;
	uint8_t         channel_enable;
	uint8_t         selected_channel;
	uint8_t         cur_channel;
	uint8_t         step;
	uint8_t         flags;
} rf5c164;

void rf5c164_init(rf5c164* pcm, uint32_t mclks, uint32_t divider);
void rf5c164_deinit(rf5c164* pcm);
void rf5c164_adjust_master_clock(rf5c164* pcm, uint32_t mclks);
void rf5c164_run(rf5c164* pcm, uint32_t cycle);
void rf5c164_write(rf5c164* pcm, uint16_t address, uint8_t value);
uint8_t rf5c164_read(rf5c164* pcm, uint16_t address);
void rf5c164_enable_scope(rf5c164* pcm, oscilloscope *scope);
void rf5c164_serialize(rf5c164* pcm, serialize_buffer *buf);
void rf5c164_deserialize(deserialize_buffer *buf, void *vpcm);

#endif //RF5C164_H_