// license:BSD-3-Clause // copyright-holders:R. Belmont /*************************************************************************** asc.h Apple Sound Chip (ASC) 344S0063 Enhanced Apple Sound Chip (EASC) 343S1063 ***************************************************************************/ #ifndef MAME_SOUND_ASC_H #define MAME_SOUND_ASC_H #pragma once //************************************************************************** // 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) \ downcast(*device).set_type(asc_device::asc_type::_type); #define MCFG_IRQ_FUNC(_irqf) \ devcb = &downcast(device)->set_irqf(DEVCB_##_irqf); //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> asc_device class asc_device : public device_t, public device_sound_interface { public: // chip behavior types enum class asc_type : uint8_t { ASC = 0, // original discrete Apple Sound Chip EASC = 1, // discrete Enhanced Apple Sound Chip V8 = 2, // Subset of ASC included in the V8 ASIC (LC/LCII) EAGLE = 3, // Subset of ASC included in the Eagle ASIC (Classic II) SPICE = 4, // Subset of ASC included in the Spice ASIC (Color Classic) SONORA = 5, // Subset of ASC included in the Sonora ASIC (LCIII) VASP = 6, // Subset of ASC included in the VASP ASIC (IIvx/IIvi) ARDBEG = 7 // Subset of ASC included in the Ardbeg ASIC (LC520) }; // construction/destruction asc_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // inline configuration helpers void set_type(asc_type type) { m_chip_type = type; } template devcb_base &set_irqf(Write &&wr) { return write_irq.set_callback(std::forward(wr)); } DECLARE_READ8_MEMBER(read); DECLARE_WRITE8_MEMBER(write); 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() override; virtual void device_reset() override; virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples) override; devcb_write_line write_irq; sound_stream *m_stream; // inline data asc_type m_chip_type; uint8_t m_fifo_a[0x400]; uint8_t m_fifo_b[0x400]; uint8_t m_regs[0x800]; uint32_t 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 DECLARE_DEVICE_TYPE(ASC, asc_device) #endif // MAME_SOUND_ASC_H