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Diffstat (limited to 'trunk/src/emu/sound/asc.h')
-rw-r--r-- | trunk/src/emu/sound/asc.h | 131 |
1 files changed, 131 insertions, 0 deletions
diff --git a/trunk/src/emu/sound/asc.h b/trunk/src/emu/sound/asc.h new file mode 100644 index 00000000000..147edc0e93d --- /dev/null +++ b/trunk/src/emu/sound/asc.h @@ -0,0 +1,131 @@ +/*************************************************************************** + + 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__ */ + |