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+/***************************************************************************
+
+ asc.h
+
+ Apple Sound Chip (ASC) 344S0063
+ Enhanced Apple Sound Chip (EASC) 343S1063
+
+***************************************************************************/
+
+#pragma once
+
+#ifndef __ASC_H__
+#define __ASC_H__
+
+
+
+
+//**************************************************************************
+// CONSTANTS
+//**************************************************************************
+
+// chip behavior types
+enum
+{
+ ASC_TYPE_ASC = 0, // original discrete Apple Sound Chip
+ ASC_TYPE_EASC = 1, // discrete Enhanced Apple Sound Chip
+ ASC_TYPE_V8 = 2, // Subset of ASC included in the V8 ASIC (LC/LCII)
+ ASC_TYPE_EAGLE = 3, // Subset of ASC included in the Eagle ASIC (Classic II)
+ ASC_TYPE_SPICE = 4, // Subset of ASC included in the Spice ASIC (Color Classic)
+ ASC_TYPE_SONORA = 5, // Subset of ASC included in the Sonora ASIC (LCIII)
+ ASC_TYPE_VASP = 6, // Subset of ASC included in the VASP ASIC (IIvx/IIvi)
+ ASC_TYPE_ARDBEG = 7 // Subset of ASC included in the Ardbeg ASIC (LC520)
+};
+
+
+
+//**************************************************************************
+// INTERFACE CONFIGURATION MACROS
+//**************************************************************************
+
+#define MCFG_ASC_ADD(_tag, _clock, _type, _irqf) \
+ MCFG_DEVICE_ADD(_tag, ASC, _clock) \
+ MCFG_ASC_TYPE(_type) \
+ MCFG_IRQ_FUNC(_irqf)
+
+#define MCFG_ASC_REPLACE(_tag, _clock, _type, _irqf) \
+ MCFG_DEVICE_REPLACE(_tag, ASC, _clock) \
+ MCFG_ASC_TYPE(_type) \
+ MCFG_IRQ_FUNC(_irqf)
+
+#define MCFG_ASC_TYPE(_type) \
+ asc_device::static_set_type(*device, _type); \
+
+#define MCFG_IRQ_FUNC(_irqf) \
+ asc_device::static_set_irqf(*device, _irqf); \
+
+
+//**************************************************************************
+// TYPE DEFINITIONS
+//**************************************************************************
+
+// ======================> asc_device
+
+class asc_device : public device_t, public device_sound_interface
+{
+public:
+ // construction/destruction
+ asc_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ // inline configuration helpers
+ static void static_set_type(device_t &device, int type);
+ static void static_set_irqf(device_t &device, void (*irqf)(device_t *device, int state));
+
+ DECLARE_READ8_MEMBER(read);
+ DECLARE_WRITE8_MEMBER(write);
+
+ sound_stream *m_stream;
+
+protected:
+ enum
+ {
+ R_VERSION = 0x800,
+ R_MODE,
+ R_CONTROL,
+ R_FIFOMODE,
+ R_FIFOSTAT,
+ R_WTCONTROL,
+ R_VOLUME,
+ R_CLOCK,
+ R_REG8,
+ R_REG9,
+ R_PLAYRECA,
+ R_REGB,
+ R_REGC,
+ R_REGD,
+ R_REGE,
+ R_TEST
+ };
+
+ // device-level overrides
+ virtual void device_start();
+ virtual void device_reset();
+ virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
+
+ virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
+
+ // inline data
+ UINT8 m_chip_type;
+ void (*m_irq_cb)(device_t *device, int state);
+
+ UINT8 m_fifo_a[0x400];
+ UINT8 m_fifo_b[0x400];
+
+ UINT8 m_regs[0x800];
+
+ UINT32 m_phase[4], m_incr[4];
+
+ int m_fifo_a_rdptr, m_fifo_b_rdptr;
+ int m_fifo_a_wrptr, m_fifo_b_wrptr;
+ int m_fifo_cap_a, m_fifo_cap_b;
+
+ emu_timer *m_timer;
+};
+
+
+// device type definition
+extern const device_type ASC;
+
+
+#endif /* __ASC_H__ */
+