mirror of
https://github.com/holub/mame
synced 2025-06-04 11:56:28 +03:00
158 lines
4.4 KiB
C++
158 lines
4.4 KiB
C++
/**********************************************************************
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Intelligent Designs DAVE emulation
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Copyright MESS Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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**********************************************************************/
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#pragma once
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#ifndef __DAVE__
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#define __DAVE__
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#include "emu.h"
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///*************************************************************************
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// MACROS / CONSTANTS
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///*************************************************************************
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///*************************************************************************
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// INTERFACE CONFIGURATION MACROS
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///*************************************************************************
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#define MCFG_DAVE_ADD(_tag, _clock, _program_map, _io_map) \
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MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker") \
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MCFG_SOUND_ADD(_tag, DAVE, _clock) \
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MCFG_SOUND_ROUTE(0, "lspeaker", 0.25) \
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MCFG_SOUND_ROUTE(1, "rspeaker", 0.25) \
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MCFG_DEVICE_ADDRESS_MAP(AS_PROGRAM, _program_map) \
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MCFG_DEVICE_ADDRESS_MAP(AS_IO, _io_map)
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#define MCFG_DAVE_IRQ_CALLBACK(_write) \
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devcb = &dave_device::set_irq_wr_callback(*device, DEVCB_##_write);
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#define MCFG_DAVE_LH_CALLBACK(_write) \
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devcb = &dave_device::set_lh_wr_callback(*device, DEVCB_##_write);
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#define MCFG_DAVE_RH_CALLBACK(_write) \
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devcb = &dave_device::set_rh_wr_callback(*device, DEVCB_##_write);
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///*************************************************************************
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// TYPE DEFINITIONS
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///*************************************************************************
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// ======================> dave_device
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class dave_device : public device_t,
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public device_memory_interface,
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public device_sound_interface
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{
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public:
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dave_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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template<class _Object> static devcb_base &set_irq_wr_callback(device_t &device, _Object object) { return downcast<dave_device &>(device).m_write_irq.set_callback(object); }
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template<class _Object> static devcb_base &set_lh_wr_callback(device_t &device, _Object object) { return downcast<dave_device &>(device).m_write_lh.set_callback(object); }
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template<class _Object> static devcb_base &set_rh_wr_callback(device_t &device, _Object object) { return downcast<dave_device &>(device).m_write_rh.set_callback(object); }
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virtual DECLARE_ADDRESS_MAP(z80_program_map, 8);
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virtual DECLARE_ADDRESS_MAP(z80_io_map, 8);
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DECLARE_WRITE_LINE_MEMBER( int1_w );
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DECLARE_WRITE_LINE_MEMBER( int2_w );
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protected:
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// device-level overrides
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virtual void device_start();
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virtual void device_reset();
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virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
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// device_memory_interface overrides
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virtual const address_space_config *memory_space_config(address_spacenum spacenum = AS_0) const;
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// sound stream update overrides
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virtual void sound_stream_update(sound_stream &stream, stream_sample_t **inputs, stream_sample_t **outputs, int samples);
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DECLARE_READ8_MEMBER( program_r );
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DECLARE_WRITE8_MEMBER( program_w );
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DECLARE_READ8_MEMBER( io_r );
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DECLARE_WRITE8_MEMBER( io_w );
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private:
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enum
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{
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TIMER_1HZ,
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TIMER_50HZ
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};
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enum
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{
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IRQ_50HZ_DIVIDER = 0x01,
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IRQ_50HZ_LATCH = 0x02,
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IRQ_1HZ_DIVIDER = 0x04,
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IRQ_1HZ_LATCH = 0x08,
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IRQ_INT1 = 0x10,
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IRQ_INT1_LATCH = 0x20,
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IRQ_INT2 = 0x40,
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IRQ_INT2_LATCH = 0x80,
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IRQ_LATCH = IRQ_INT2_LATCH | IRQ_INT1_LATCH | IRQ_1HZ_LATCH | IRQ_50HZ_LATCH
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};
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void update_interrupt();
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const address_space_config m_program_space_config;
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const address_space_config m_io_space_config;
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devcb_write_line m_write_irq;
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devcb_write8 m_write_lh;
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devcb_write8 m_write_rh;
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UINT8 m_segment[4];
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UINT8 m_irq_status;
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UINT8 m_irq_enable;
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emu_timer *m_timer_1hz;
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emu_timer *m_timer_50hz;
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/* SOUND SYNTHESIS */
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UINT8 m_regs[32];
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int m_period[4];
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int m_count[4];
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int m_level[4];
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/* these are used to force channels on/off */
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/* if one of the or values is 0x0ff, this means
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the volume will be forced on,else it is dependant on
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the state of the wave */
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int m_level_or[8];
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/* if one of the values is 0x00, this means the
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volume is forced off, else it is dependant on the wave */
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int m_level_and[8];
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/* these are the current channel volumes in MAME form */
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int m_mame_volumes[8];
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/* update step */
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//int m_update_step;
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sound_stream *m_sound_stream_var;
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};
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// device type definition
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extern const device_type DAVE;
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#endif
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