diff options
Diffstat (limited to 'src/devices/bus/pc98_cbus/amd98.h')
| -rw-r--r-- | src/devices/bus/pc98_cbus/amd98.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/src/devices/bus/pc98_cbus/amd98.h b/src/devices/bus/pc98_cbus/amd98.h new file mode 100644 index 00000000000..b763d2a26ea --- /dev/null +++ b/src/devices/bus/pc98_cbus/amd98.h @@ -0,0 +1,59 @@ +// license:BSD-3-Clause +// copyright-holders:Angelo Salese +/*************************************************************************** + + System Sacom AMD-98 (AmuseMent boarD) + +***************************************************************************/ + +#ifndef MAME_BUS_PC98_CBUS_AMD98_H +#define MAME_BUS_PC98_CBUS_AMD98_H + +#pragma once + +#include "slot.h" +#include "sound/ay8910.h" + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> amd98_device + +class amd98_device : public device_t +{ +public: + // construction/destruction + amd98_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + + static constexpr feature_type imperfect_features() { return feature::SOUND; } + + uint8_t read(offs_t offset); + void write(offs_t offset, uint8_t data); + +protected: + // device-level overrides + virtual void device_validity_check(validity_checker &valid) const override; + virtual void device_start() override ATTR_COLD; + virtual void device_reset() override ATTR_COLD; + // optional information overrides + virtual void device_add_mconfig(machine_config &config) override ATTR_COLD; + virtual ioport_constructor device_input_ports() const override ATTR_COLD; + +private: + void ay3_address_w(uint8_t data); + void ay3_data_latch_w(uint8_t data); + + uint8_t m_ay3_latch, m_ay3_ff; + + required_device<pc98_cbus_slot_device> m_bus; + required_device<ay8910_device> m_ay1; + required_device<ay8910_device> m_ay2; + required_device<ay8910_device> m_ay3; + +}; + +// device type definition +DECLARE_DEVICE_TYPE(AMD98, amd98_device) + +#endif // MAME_BUS_PC98_CBUS_AMD98_H |
