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Diffstat (limited to 'src/devices/bus/thomson/cq90_028.h')
-rw-r--r-- | src/devices/bus/thomson/cq90_028.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/devices/bus/thomson/cq90_028.h b/src/devices/bus/thomson/cq90_028.h new file mode 100644 index 00000000000..a31a022405d --- /dev/null +++ b/src/devices/bus/thomson/cq90_028.h @@ -0,0 +1,42 @@ +// license:BSD-3-Clause +// copyright-holders:Olivier Galibert + +// CQ 90-028 - QDD drive controller built from a motorola 6852 (serial chip) +// +// Handles n? QDD drives (QD 90-128) + +#ifndef MAME_BUS_THOMSON_CQ90_028_H +#define MAME_BUS_THOMSON_CQ90_028_H + +#include "extension.h" +#include "machine/mc6852.h" + +class cq90_028_device : public device_t, public thomson_extension_interface +{ +public: + cq90_028_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); + virtual ~cq90_028_device() = default; + + static constexpr feature_type unemulated_features() { return feature::DISK; } + + virtual void rom_map(address_map &map) override; + virtual void io_map(address_map &map) override; + +protected: + virtual const tiny_rom_entry *device_rom_region() const override; + virtual void device_add_mconfig(machine_config &config) override; + virtual void device_start() override; + virtual void device_reset() override; + +private: + required_device<mc6852_device> m_serial; + required_memory_region m_rom; + + void drive_w(u8 data); + void motor_w(u8 data); + u8 status_r(); +}; + +DECLARE_DEVICE_TYPE(CQ90_028, cq90_028_device) + +#endif |