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Diffstat (limited to 'src/emu/bus/c64/user.h')
-rw-r--r-- | src/emu/bus/c64/user.h | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/src/emu/bus/c64/user.h b/src/emu/bus/c64/user.h new file mode 100644 index 00000000000..6c19869b3a6 --- /dev/null +++ b/src/emu/bus/c64/user.h @@ -0,0 +1,170 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + Commodore 64 User Port emulation + + Copyright MESS Team. + Visit http://mamedev.org for licensing and usage restrictions. + +********************************************************************** + + GND 1 A GND + +5V 2 B /FLAG2 + /RESET 3 C PB0 + CNT1 4 D PB1 + SP1 5 E PB2 + CNT2 6 F PB3 + SP2 7 H PB4 + /PC2 8 J PB5 + ATN 9 K PB6 + +9VAC 10 L PB7 + +9VAC 11 M PA2 + GND 12 N GND + +**********************************************************************/ + +#pragma once + +#ifndef __C64_USER_PORT__ +#define __C64_USER_PORT__ + +#include "emu.h" + + + +//************************************************************************** +// CONSTANTS +//************************************************************************** + +#define C64_USER_PORT_TAG "user" + + + +//************************************************************************** +// INTERFACE CONFIGURATION MACROS +//************************************************************************** + +#define MCFG_C64_USER_PORT_ADD(_tag, _slot_intf, _def_slot, _reset) \ + MCFG_DEVICE_ADD(_tag, C64_USER_PORT, 0) \ + downcast<c64_user_port_device *>(device)->set_reset_callback(DEVCB2_##_reset); \ + MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false) + + +#define MCFG_C64_USER_PORT_CIA1_CALLBACKS(_cnt, _sp) \ + downcast<c64_user_port_device *>(device)->set_cia1_callbacks(DEVCB2_##_cnt, DEVCB2_##_sp); + +#define MCFG_C64_USER_PORT_CIA2_CALLBACKS(_cnt, _sp, _flag) \ + downcast<c64_user_port_device *>(device)->set_cia2_callbacks(DEVCB2_##_cnt, DEVCB2_##_sp, DEVCB2_##_flag); + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> c64_user_port_device + +class device_c64_user_port_interface; + +class c64_user_port_device : public device_t, + public device_slot_interface +{ +public: + // construction/destruction + c64_user_port_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + template<class _reset> void set_reset_callback(_reset reset) { m_write_reset.set_callback(reset); } + + template<class _cnt, class _sp> void set_cia1_callbacks(_cnt cnt, _sp sp) { + m_write_cnt1.set_callback(cnt); + m_write_sp1.set_callback(sp); + } + + template<class _cnt, class _sp, class _flag> void set_cia2_callbacks(_cnt cnt, _sp sp, _flag flag) { + m_write_cnt2.set_callback(cnt); + m_write_sp2.set_callback(sp); + m_write_flag2.set_callback(flag); + } + + // computer interface + DECLARE_READ8_MEMBER( pb_r ); + DECLARE_WRITE8_MEMBER( pb_w ); + DECLARE_READ_LINE_MEMBER( pa2_r ); + DECLARE_WRITE_LINE_MEMBER( pa2_w ); + DECLARE_WRITE_LINE_MEMBER( pc2_w ); + DECLARE_WRITE_LINE_MEMBER( atn_w ); + DECLARE_WRITE_LINE_MEMBER( cnt1_w ); + DECLARE_WRITE_LINE_MEMBER( sp1_w ); + DECLARE_WRITE_LINE_MEMBER( cnt2_w ); + DECLARE_WRITE_LINE_MEMBER( sp2_w ); + + // cartridge interface + DECLARE_WRITE_LINE_MEMBER( cia_cnt1_w ) { m_write_cnt1(state); } + DECLARE_WRITE_LINE_MEMBER( cia_sp1_w ) { m_write_sp1(state); } + DECLARE_WRITE_LINE_MEMBER( cia_cnt2_w ) { m_write_cnt2(state); } + DECLARE_WRITE_LINE_MEMBER( cia_sp2_w ) { m_write_sp2(state); } + DECLARE_WRITE_LINE_MEMBER( cia_flag2_w ) { m_write_flag2(state); } + DECLARE_WRITE_LINE_MEMBER( reset_w ) { m_write_reset(state); } + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + devcb2_write_line m_write_cnt1; + devcb2_write_line m_write_sp1; + devcb2_write_line m_write_cnt2; + devcb2_write_line m_write_sp2; + devcb2_write_line m_write_flag2; + devcb2_write_line m_write_reset; + + device_c64_user_port_interface *m_card; +}; + + +// ======================> device_c64_user_port_interface + +// class representing interface-specific live c64_expansion card +class device_c64_user_port_interface : public device_slot_card_interface +{ +public: + // construction/destruction + device_c64_user_port_interface(const machine_config &mconfig, device_t &device); + virtual ~device_c64_user_port_interface(); + + virtual UINT8 c64_pb_r(address_space &space, offs_t offset) { return 0xff; }; + virtual void c64_pb_w(address_space &space, offs_t offset, UINT8 data) { }; + + virtual int c64_pa2_r() { return 1; }; + virtual void c64_pa2_w(int state) { }; + virtual void c64_cnt1_w(int state) { }; + virtual void c64_sp1_w(int state) { }; + virtual void c64_pc2_w(int state) { }; + virtual void c64_cnt2_w(int state) { }; + virtual void c64_sp2_w(int state) { }; + virtual void c64_atn_w(int state) { }; + +protected: + c64_user_port_device *m_slot; +}; + + +// device type definition +extern const device_type C64_USER_PORT; + + +// slot devices +#include "4cga.h" +#include "4dxh.h" +#include "4ksa.h" +#include "4tba.h" +#include "bn1541.h" +#include "geocable.h" +#include "vic1011.h" + +SLOT_INTERFACE_EXTERN( c64_user_port_cards ); + + + +#endif |