mirror of
https://github.com/holub/mame
synced 2025-05-12 00:58:53 +03:00
08b42aabaa
(MESS) vic20: Added floating bus read support to VIC and cartridge interface. (MESS) vic10: Added floating bus read support to VIC-II and cartridge interface. (MESS) c64: Added floating bus read support to cartridge interface. [Curt Coder] (MESS) plus4: Added floating bus read support to TED and cartridge interface. Implemented some Diag264 test cartridge loopback connectors. [Curt Coder] (MESS) c16: Added PAL/NTSC variants. (nw) (MESS) v364: Fixed speech ROM mapping. (nw) (MESS) compis: Separated keyboard to its own file. (nw) (MESS) huebler: Cleanup. (nw)
127 lines
3.7 KiB
C++
127 lines
3.7 KiB
C++
/**********************************************************************
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Commodore Plus/4 User Port emulation
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Copyright MESS Team.
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Visit http://mamedev.org for licensing and usage restrictions.
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**********************************************************************
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GND 1 A GND
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+5V 2 B P0
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_BRESET 3 C RxD
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P2 4 D RTS
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P3 5 E DTR
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P4 6 F P7
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P5 7 H DCD
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P0 8 J P6
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ATN 9 K P1
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+9VAC 10 L DSR
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+9VAC 11 M TxD
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GND 12 N GND
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**********************************************************************/
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#pragma once
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#ifndef __PLUS4_USER_PORT__
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#define __PLUS4_USER_PORT__
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#include "emu.h"
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//**************************************************************************
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// CONSTANTS
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//**************************************************************************
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#define PLUS4_USER_PORT_TAG "user"
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//**************************************************************************
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// INTERFACE CONFIGURATION MACROS
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//**************************************************************************
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#define MCFG_PLUS4_USER_PORT_ADD(_tag, _slot_intf, _def_slot, _def_inp) \
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MCFG_DEVICE_ADD(_tag, PLUS4_USER_PORT, 0) \
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MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, _def_inp, false)
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//**************************************************************************
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// TYPE DEFINITIONS
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//**************************************************************************
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// ======================> plus4_user_port_device
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class device_plus4_user_port_interface;
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class plus4_user_port_device : public device_t,
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public device_slot_interface
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{
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public:
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// construction/destruction
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plus4_user_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
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virtual ~plus4_user_port_device();
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// computer interface
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DECLARE_READ8_MEMBER( p_r );
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DECLARE_WRITE8_MEMBER( p_w );
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DECLARE_READ_LINE_MEMBER( rxd_r );
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DECLARE_READ_LINE_MEMBER( dcd_r );
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DECLARE_READ_LINE_MEMBER( dsr_r );
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DECLARE_WRITE_LINE_MEMBER( txd_w );
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DECLARE_WRITE_LINE_MEMBER( dtr_w );
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DECLARE_WRITE_LINE_MEMBER( rts_w );
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DECLARE_WRITE_LINE_MEMBER( rxc_w );
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DECLARE_WRITE_LINE_MEMBER( atn_w );
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DECLARE_WRITE_LINE_MEMBER( breset_w );
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protected:
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// device-level overrides
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virtual void device_config_complete() { };
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virtual void device_start();
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virtual void device_reset();
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device_plus4_user_port_interface *m_cart;
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};
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// ======================> device_plus4_user_port_interface
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// class representing interface-specific live plus4_expansion card
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class device_plus4_user_port_interface : public device_slot_card_interface
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{
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public:
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// construction/destruction
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device_plus4_user_port_interface(const machine_config &mconfig, device_t &device);
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virtual ~device_plus4_user_port_interface();
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virtual UINT8 plus4_p_r() { return 0xff; };
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virtual void plus4_p_w(UINT8 data) { };
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virtual int plus4_rxd_r() { return 1; };
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virtual int plus4_dcd_r() { return 0; };
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virtual int plus4_dsr_r() { return 0; };
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virtual void plus4_txd_w(int state) { };
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virtual void plus4_dtr_w(int state) { };
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virtual void plus4_rts_w(int state) { };
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virtual void plus4_rxc_w(int state) { };
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virtual void plus4_atn_w(int state) { };
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// reset
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virtual void plus4_breset_w(int state) { };
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protected:
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plus4_user_port_device *m_slot;
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};
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// device type definition
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extern const device_type PLUS4_USER_PORT;
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#endif
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