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// license:BSD-3-Clause
// copyright-holders:Curt Coder
/**********************************************************************
Commodore VIC-10 Expansion Port emulation
**********************************************************************
GND 1 A GND
+5V 2 B _UPROM
+5V 3 C _RESET
_IRQ 4 D _NMI
_CR/W 5 E Sphi2
SP 6 F CA15
_EXRAM 7 H CA14
CNT 8 J CA13
_CIA 9 K CA12
_CIA PLA 10 L CA11
_LOROM 11 M CA10
BA 12 N CA9
R/_W PLA 13 P CA8
CD7 14 R CA7
CD6 15 S CA6
CD5 16 T CA5
CD4 17 U CA4
CD3 18 V CA3
CD2 19 W CA2
CD1 20 X CA1
CD0 21 Y CA0
P2 22 Z GND
**********************************************************************/
#ifndef MAME_BUS_VIC10_EXP_H
#define MAME_BUS_VIC10_EXP_H
#pragma once
#include "softlist_dev.h"
#include "formats/cbm_crt.h"
//**************************************************************************
// CONSTANTS
//**************************************************************************
#define VIC10_EXPANSION_SLOT_TAG "exp"
//**************************************************************************
// INTERFACE CONFIGURATION MACROS
//**************************************************************************
#define MCFG_VIC10_EXPANSION_SLOT_ADD(_tag, _clock, _slot_intf, _def_slot) \
MCFG_DEVICE_ADD(_tag, VIC10_EXPANSION_SLOT, _clock) \
MCFG_DEVICE_SLOT_INTERFACE(_slot_intf, _def_slot, false)
#define MCFG_VIC10_EXPANSION_SLOT_IRQ_CALLBACK(_write) \
devcb = &downcast<vic10_expansion_slot_device &>(*device).set_irq_wr_callback(DEVCB_##_write);
#define MCFG_VIC10_EXPANSION_SLOT_RES_CALLBACK(_write) \
devcb = &downcast<vic10_expansion_slot_device &>(*device).set_res_wr_callback(DEVCB_##_write);
#define MCFG_VIC10_EXPANSION_SLOT_CNT_CALLBACK(_write) \
devcb = &downcast<vic10_expansion_slot_device &>(*device).set_cnt_wr_callback(DEVCB_##_write);
#define MCFG_VIC10_EXPANSION_SLOT_SP_CALLBACK(_write) \
devcb = &downcast<vic10_expansion_slot_device &>(*device).set_sp_wr_callback(DEVCB_##_write);
#define MCFG_VIC10_EXPANSION_SLOT_IRQ_CALLBACKS(_irq, _res) \
downcast<vic10_expansion_slot_device *>(device)->set_irq_callbacks(DEVCB_##_irq, DEVCB_##_res);
#define MCFG_VIC10_EXPANSION_SLOT_SERIAL_CALLBACKS(_cnt, _sp) \
downcast<vic10_expansion_slot_device *>(device)->set_serial_callbacks(DEVCB_##_cnt, DEVCB_##_sp);
//**************************************************************************
// TYPE DEFINITIONS
//**************************************************************************
// ======================> vic10_expansion_slot_device
class device_vic10_expansion_card_interface;
class vic10_expansion_slot_device : public device_t,
public device_slot_interface,
public device_image_interface
{
public:
// construction/destruction
vic10_expansion_slot_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
template <class Object> devcb_base &set_irq_wr_callback(Object &&cb) { return m_write_irq.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_res_wr_callback(Object &&cb) { return m_write_res.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_cnt_wr_callback(Object &&cb) { return m_write_cnt.set_callback(std::forward<Object>(cb)); }
template <class Object> devcb_base &set_sp_wr_callback(Object &&cb) { return m_write_sp.set_callback(std::forward<Object>(cb)); }
// computer interface
uint8_t cd_r(address_space &space, offs_t offset, uint8_t data, int lorom, int uprom, int exram);
void cd_w(address_space &space, offs_t offset, uint8_t data, int lorom, int uprom, int exram);
DECLARE_READ_LINE_MEMBER( p0_r );
DECLARE_WRITE_LINE_MEMBER( p0_w );
// cartridge interface
DECLARE_WRITE_LINE_MEMBER( irq_w ) { m_write_irq(state); }
DECLARE_WRITE_LINE_MEMBER( res_w ) { m_write_res(state); }
DECLARE_WRITE_LINE_MEMBER( cnt_w ) { m_write_cnt(state); }
DECLARE_WRITE_LINE_MEMBER( sp_w ) { m_write_sp(state); }
protected:
// device-level overrides
virtual void device_validity_check(validity_checker &valid) const override;
virtual void device_start() override;
virtual void device_reset() override;
// image-level overrides
virtual image_init_result call_load() override;
virtual const software_list_loader &get_software_list_loader() const override { return rom_software_list_loader::instance(); }
virtual iodevice_t image_type() const override { return IO_CARTSLOT; }
virtual bool is_readable() const override { return 1; }
virtual bool is_writeable() const override { return 0; }
virtual bool is_creatable() const override { return 0; }
virtual bool must_be_loaded() const override { return 1; }
virtual bool is_reset_on_load() const override { return 1; }
virtual const char *image_interface() const override { return "vic10_cart"; }
virtual const char *file_extensions() const override { return "80,e0"; }
// slot interface overrides
virtual std::string get_default_card_software(get_default_card_software_hook &hook) const override;
devcb_write_line m_write_irq;
devcb_write_line m_write_res;
devcb_write_line m_write_cnt;
devcb_write_line m_write_sp;
device_vic10_expansion_card_interface *m_card;
};
// ======================> device_vic10_expansion_card_interface
// class representing interface-specific live vic10_expansion card
class device_vic10_expansion_card_interface : public device_slot_card_interface
{
friend class vic10_expansion_slot_device;
public:
// construction/destruction
virtual ~device_vic10_expansion_card_interface();
virtual uint8_t vic10_cd_r(address_space &space, offs_t offset, uint8_t data, int lorom, int uprom, int exram) { return data; }
virtual void vic10_cd_w(address_space &space, offs_t offset, uint8_t data, int lorom, int uprom, int exram) { }
virtual int vic10_p0_r() { return 0; }
virtual void vic10_p0_w(int state) { }
virtual void vic10_sp_w(int state) { }
virtual void vic10_cnt_w(int state) { }
protected:
device_vic10_expansion_card_interface(const machine_config &mconfig, device_t &device);
optional_shared_ptr<uint8_t> m_lorom;
optional_shared_ptr<uint8_t> m_exram;
optional_shared_ptr<uint8_t> m_uprom;
vic10_expansion_slot_device *m_slot;
};
// device type definition
DECLARE_DEVICE_TYPE(VIC10_EXPANSION_SLOT, vic10_expansion_slot_device)
void vic10_expansion_cards(device_slot_interface &device);
#endif // MAME_BUS_VIC10_EXP_H
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