// license:BSD-3-Clause // copyright-holders:MetalliC /********************************************************************* SDI Interface *********************************************************************/ #ifndef MAME_BUS_SPECTRUM_SDI_H #define MAME_BUS_SPECTRUM_SDI_H #include "exp.h" #include "softlist.h" #include "machine/i8255.h" #include "bus/cbmiec/cbmiec.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** class spectrum_sdi_device : public device_t, public device_spectrum_expansion_interface { public: // construction/destruction spectrum_sdi_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); static constexpr feature_type unemulated_features() { return feature::DISK; } protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; // optional information overrides virtual void device_add_mconfig(machine_config &config) override; virtual const tiny_rom_entry *device_rom_region() const override; virtual void pre_opcode_fetch(offs_t offset) override; virtual uint8_t mreq_r(offs_t offset) override; virtual uint8_t iorq_r(offs_t offset) override; virtual void iorq_w(offs_t offset, uint8_t data) override; virtual DECLARE_READ_LINE_MEMBER(romcs) override; required_memory_region m_rom; required_device m_ppi; required_device m_iec; void ppic_w(uint8_t data); uint8_t ppic_r(); int m_romcs; }; // device type definition DECLARE_DEVICE_TYPE(SPECTRUM_SDI, spectrum_sdi_device) #endif // MAME_BUS_SPECTRUM_SDI_H