// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Commodore 1551 Single Disk Drive emulation **********************************************************************/ #ifndef MAME_BUS_PLUS4_C1551_H #define MAME_BUS_PLUS4_C1551_H #pragma once #include "exp.h" #include "cpu/m6502/m6510t.h" #include "imagedev/floppy.h" #include "machine/64h156.h" #include "machine/6525tpi.h" #include "machine/pla.h" //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> c1551_device class c1551_device : public device_t, public device_plus4_expansion_card_interface { public: // construction/destruction c1551_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); protected: // device-level overrides 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; // optional information overrides virtual const tiny_rom_entry *device_rom_region() const override; virtual void device_add_mconfig(machine_config &config) override; virtual ioport_constructor device_input_ports() const override; // device_plus4_expansion_card_interface overrides virtual uint8_t plus4_cd_r(offs_t offset, uint8_t data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h) override; virtual void plus4_cd_w(offs_t offset, uint8_t data, int ba, int cs0, int c1l, int c2l, int cs1, int c1h, int c2h) override; private: uint8_t port_r(); void port_w(uint8_t data); uint8_t tcbm_data_r(); void tcbm_data_w(uint8_t data); uint8_t tpi0_pc_r(); void tpi0_pc_w(uint8_t data); uint8_t tpi1_pb_r(); uint8_t tpi1_pc_r(); void tpi1_pc_w(uint8_t data); uint8_t tpi0_r(offs_t offset); void tpi0_w(offs_t offset, uint8_t data); void c1551_mem(address_map &map); static void floppy_formats(format_registration &fr); enum { LED_POWER = 0, LED_ACT }; bool tpi1_selected(offs_t offset); required_device m_maincpu; required_device m_tpi0; required_device m_tpi1; required_device m_ga; required_device m_pla; required_device m_floppy; required_device m_exp; required_ioport m_jp1; output_finder<2> m_leds; // TCBM bus uint8_t m_tcbm_data; // data int m_status; // status int m_dav; // data valid int m_ack; // acknowledge int m_dev; // device number // timers emu_timer *m_irq_timer; }; // device type definition DECLARE_DEVICE_TYPE(C1551, c1551_device) #endif // MAME_BUS_PLUS4_C1551_H