// license:BSD-3-Clause // copyright-holders:R. Belmont /********************************************************************* corvfdc02.h Implemention of the Corvus Systems CORVUS02 floppy controller *********************************************************************/ #ifndef MAME_BUS_A2BUS_CORVFDC02_H #define MAME_BUS_A2BUS_CORVFDC02_H #pragma once #include "a2bus.h" #include "imagedev/floppy.h" #include "machine/upd765.h" #include "formats/imd_dsk.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class a2bus_corvfdc02_device: public device_t, public device_a2bus_card_interface { public: // construction/destruction a2bus_corvfdc02_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: a2bus_corvfdc02_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_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; virtual void device_add_mconfig(machine_config &config) override; virtual const tiny_rom_entry *device_rom_region() const 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; required_device m_fdc; required_device m_con1; required_device m_con2; required_device m_con3; required_device m_con4; private: DECLARE_WRITE_LINE_MEMBER(intrq_w); DECLARE_WRITE_LINE_MEMBER(drq_w); DECLARE_FLOPPY_FORMATS(corv_floppy_formats); uint8_t *m_rom; uint8_t m_fdc_local_status, m_fdc_local_command; uint16_t m_bufptr; uint8_t m_buffer[2048]; // 1x6116 SRAM floppy_image_device *m_curfloppy; bool m_in_drq; emu_timer *m_timer; }; // device type definition DECLARE_DEVICE_TYPE(A2BUS_CORVFDC02, a2bus_corvfdc02_device) #endif // MAME_BUS_A2BUS_CORVFDC02_H