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Diffstat (limited to 'src/devices/bus/a2bus/sider.h')
-rw-r--r-- | src/devices/bus/a2bus/sider.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/src/devices/bus/a2bus/sider.h b/src/devices/bus/a2bus/sider.h new file mode 100644 index 00000000000..36452c6d3e1 --- /dev/null +++ b/src/devices/bus/a2bus/sider.h @@ -0,0 +1,77 @@ +// license:BSD-3-Clause +// copyright-holders:R. Belmont +/********************************************************************* + + sider.h + + Implementation of the First Class Peripherals / Advanced Tech Services / Xebec Sider SASI Card + +*********************************************************************/ + +#ifndef MAME_BUS_A2BUS_SIDER_H +#define MAME_BUS_A2BUS_SIDER_H + +#pragma once + +#include "a2bus.h" +#include "bus/nscsi/devices.h" +#include "machine/nscsi_bus.h" +#include "machine/nscsi_cb.h" + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class a2bus_sider_device: + public device_t, + public device_a2bus_card_interface +{ +protected: + a2bus_sider_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock); + + virtual void device_start() override; + virtual void device_reset() override; + virtual void device_add_mconfig(machine_config &config) override; + + // overrides of standard a2bus slot functions + virtual uint8_t read_c0nx(uint8_t offset) override; + virtual void write_c0nx(uint8_t offset, uint8_t data) override; + virtual uint8_t read_cnxx(uint8_t offset) override; + virtual void write_cnxx(uint8_t offset, uint8_t data) override; + virtual uint8_t read_c800(uint16_t offset) override; + virtual void write_c800(uint16_t offset, uint8_t data) override; + + required_device<nscsi_bus_device> m_sasibus; + required_device<nscsi_callback_device> m_sasi; + required_region_ptr<u8> m_rom; + +private: + u8 m_latch; + u8 m_control; +}; + +class a2bus_sidercard_device: public a2bus_sider_device +{ +public: + a2bus_sidercard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + virtual const tiny_rom_entry *device_rom_region() const override; +}; + +class a2bus_xebeccard_device: public a2bus_sider_device +{ +public: + a2bus_xebeccard_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + virtual const tiny_rom_entry *device_rom_region() const override; + + // the Xebec version of the firmware doesn't work; it appears to have some bytes corrupted. + static constexpr feature_type unemulated_features() { return feature::DISK; } + +protected: + virtual void device_start() override; +}; + +// device type definition +DECLARE_DEVICE_TYPE(A2BUS_SIDER, a2bus_sidercard_device) +DECLARE_DEVICE_TYPE(A2BUS_XEBEC, a2bus_xebeccard_device) + +#endif // MAME_BUS_A2BUS_SIDER_H |