// license:BSD-3-Clause // copyright-holders:Wilbert Pol, Miodrag Milanovic /***************************************************************************** * * includes/pc.h * ****************************************************************************/ #ifndef GENPC_H_ #define GENPC_H_ #include "machine/ins8250.h" #include "machine/i8255.h" #include "machine/am9517a.h" #include "bus/isa/isa.h" #include "bus/isa/isa_cards.h" #include "bus/pc_kbd/pc_kbdc.h" #include "machine/pic8259.h" #include "machine/pit8253.h" #include "sound/speaker.h" #include "imagedev/cassette.h" #include "machine/ram.h" #define MCFG_IBM5160_MOTHERBOARD_ADD(_tag, _cputag) \ MCFG_DEVICE_ADD(_tag, IBM5160_MOTHERBOARD, 0) \ ibm5160_mb_device::static_set_cputag(*device, _cputag); // ======================> ibm5160_mb_device class ibm5160_mb_device : public device_t { public: // construction/destruction ibm5160_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); // inline configuration static void static_set_cputag(device_t &device, const char *tag); // optional information overrides virtual machine_config_constructor device_mconfig_additions() const override; virtual ioport_constructor device_input_ports() const override; DECLARE_ADDRESS_MAP(map, 8); protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; public: required_device m_maincpu; required_device m_pic8259; required_device m_dma8237; required_device m_pit8253; optional_device m_ppi8255; required_device m_speaker; required_device m_isabus; optional_device m_pc_kbdc; required_device m_ram; /* U73 is an LS74 - dual flip flop */ /* Q2 is set by OUT1 from the 8253 and goes to DRQ1 on the 8237 */ UINT8 m_u73_q2; UINT8 m_out1; int m_dma_channel; UINT8 m_dma_offset[4]; UINT8 m_pc_spkrdata; UINT8 m_pit_out2; bool m_cur_eop; UINT8 m_nmi_enabled; int m_ppi_portc_switch_high; int m_ppi_speaker; int m_ppi_keyboard_clear; UINT8 m_ppi_keyb_clock; UINT8 m_ppi_portb; UINT8 m_ppi_clock_signal; UINT8 m_ppi_data_signal; UINT8 m_ppi_shift_register; UINT8 m_ppi_shift_enable; // interface to the keyboard DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w ); DECLARE_WRITE_LINE_MEMBER( keyboard_data_w ); DECLARE_READ8_MEMBER ( pc_ppi_porta_r ); DECLARE_READ8_MEMBER ( pc_ppi_portc_r ); DECLARE_WRITE8_MEMBER( pc_ppi_portb_w ); DECLARE_WRITE_LINE_MEMBER( pc_pit8253_out1_changed ); DECLARE_WRITE_LINE_MEMBER( pc_pit8253_out2_changed ); DECLARE_WRITE_LINE_MEMBER( pc_dma_hrq_changed ); DECLARE_WRITE_LINE_MEMBER( pc_dma8237_out_eop ); DECLARE_READ8_MEMBER( pc_dma_read_byte ); DECLARE_WRITE8_MEMBER( pc_dma_write_byte ); DECLARE_READ8_MEMBER( pc_dma8237_1_dack_r ); DECLARE_READ8_MEMBER( pc_dma8237_2_dack_r ); DECLARE_READ8_MEMBER( pc_dma8237_3_dack_r ); DECLARE_WRITE8_MEMBER( pc_dma8237_1_dack_w ); DECLARE_WRITE8_MEMBER( pc_dma8237_2_dack_w ); DECLARE_WRITE8_MEMBER( pc_dma8237_3_dack_w ); DECLARE_WRITE8_MEMBER( pc_dma8237_0_dack_w ); DECLARE_WRITE_LINE_MEMBER( pc_dack0_w ); DECLARE_WRITE_LINE_MEMBER( pc_dack1_w ); DECLARE_WRITE_LINE_MEMBER( pc_dack2_w ); DECLARE_WRITE_LINE_MEMBER( pc_dack3_w ); DECLARE_WRITE_LINE_MEMBER( pc_speaker_set_spkrdata ); DECLARE_WRITE8_MEMBER(pc_page_w); DECLARE_WRITE8_MEMBER(nmi_enable_w); const char *m_cputag; private: void pc_select_dma_channel(int channel, bool state); }; // device type definition extern const device_type IBM5160_MOTHERBOARD; #define MCFG_IBM5150_MOTHERBOARD_ADD(_tag, _cputag) \ MCFG_DEVICE_ADD(_tag, IBM5150_MOTHERBOARD, 0) \ ibm5150_mb_device::static_set_cputag(*device, _cputag); // ======================> ibm5150_mb_device class ibm5150_mb_device : public ibm5160_mb_device { public: // construction/destruction ibm5150_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); // optional information overrides virtual machine_config_constructor device_mconfig_additions() const override; DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w ); protected: // device-level overrides required_device m_cassette; public: DECLARE_READ8_MEMBER ( pc_ppi_porta_r ); DECLARE_READ8_MEMBER ( pc_ppi_portc_r ); DECLARE_WRITE8_MEMBER( pc_ppi_portb_w ); }; // device type definition extern const device_type IBM5150_MOTHERBOARD; #define MCFG_EC1841_MOTHERBOARD_ADD(_tag, _cputag) \ MCFG_DEVICE_ADD(_tag, EC1841_MOTHERBOARD, 0) \ ec1841_mb_device::static_set_cputag(*device, _cputag); class ec1841_mb_device : public ibm5160_mb_device { public: // construction/destruction ec1841_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); // optional information overrides virtual machine_config_constructor device_mconfig_additions() const override; virtual ioport_constructor device_input_ports() const override; virtual void device_start() override; public: DECLARE_READ8_MEMBER ( pc_ppi_portc_r ); DECLARE_WRITE8_MEMBER( pc_ppi_portb_w ); DECLARE_WRITE_LINE_MEMBER( keyboard_clock_w ); }; extern const device_type EC1841_MOTHERBOARD; #define MCFG_PCNOPPI_MOTHERBOARD_ADD(_tag, _cputag) \ MCFG_DEVICE_ADD(_tag, PCNOPPI_MOTHERBOARD, 0) \ pc_noppi_mb_device::static_set_cputag(*device, _cputag); class pc_noppi_mb_device : public ibm5160_mb_device { public: // construction/destruction pc_noppi_mb_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); UINT8 pit_out2() { return m_pit_out2; } // helper for near-clones with multifunction ics instead of 8255s DECLARE_ADDRESS_MAP(map, 8); virtual machine_config_constructor device_mconfig_additions() const override; virtual ioport_constructor device_input_ports() const override; }; extern const device_type PCNOPPI_MOTHERBOARD; #endif /* GENPC_H_ */