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/**********************************************************************
Commodore VIC-10 Expansion Port emulation
Copyright MESS Team.
Visit http://mamedev.org for licensing and usage restrictions.
**********************************************************************
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
**********************************************************************/
#pragma once
#ifndef __VIC10_EXPANSION_SLOT__
#define __VIC10_EXPANSION_SLOT__
#include "emu.h"
#include "machine/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_CALLBACKS(_irq, _res) \
downcast<vic10_expansion_slot_device *>(device)->set_irq_callbacks(DEVCB2_##_irq, DEVCB2_##_res);
#define MCFG_VIC10_EXPANSION_SLOT_SERIAL_CALLBACKS(_cnt, _sp) \
downcast<vic10_expansion_slot_device *>(device)->set_serial_callbacks(DEVCB2_##_cnt, DEVCB2_##_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 clock);
template<class _irq, class _res> void set_irq_callbacks(_irq irq, _res res) {
m_write_irq.set_callback(irq);
m_write_res.set_callback(res);
}
template<class _cnt, class _sp> void set_serial_callbacks(_cnt cnt, _sp sp) {
m_write_cnt.set_callback(cnt);
m_write_sp.set_callback(sp);
}
// computer interface
UINT8 cd_r(address_space &space, offs_t offset, UINT8 data, int lorom, int uprom, int exram);
void cd_w(address_space &space, offs_t offset, UINT8 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_config_complete() { update_names(); }
virtual void device_start();
virtual void device_reset();
// image-level overrides
virtual bool call_load();
virtual bool call_softlist_load(char *swlist, char *swname, rom_entry *start_entry);
virtual iodevice_t image_type() const { return IO_CARTSLOT; }
virtual bool is_readable() const { return 1; }
virtual bool is_writeable() const { return 0; }
virtual bool is_creatable() const { return 0; }
virtual bool must_be_loaded() const { return 1; }
virtual bool is_reset_on_load() const { return 1; }
virtual const char *image_interface() const { return "vic10_cart"; }
virtual const char *file_extensions() const { return "80,e0"; }
virtual const option_guide *create_option_guide() const { return NULL; }
// slot interface overrides
virtual const char * get_default_card_software(const machine_config &config, emu_options &options);
devcb2_write_line m_write_irq;
devcb2_write_line m_write_res;
devcb2_write_line m_write_cnt;
devcb2_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
device_vic10_expansion_card_interface(const machine_config &mconfig, device_t &device);
virtual ~device_vic10_expansion_card_interface();
protected:
// initialization
virtual UINT8* vic10_exram_pointer(running_machine &machine, size_t size);
virtual UINT8* vic10_lorom_pointer(running_machine &machine, size_t size);
virtual UINT8* vic10_uprom_pointer(running_machine &machine, size_t size);
// runtime
virtual UINT8 vic10_cd_r(address_space &space, offs_t offset, UINT8 data, int lorom, int uprom, int exram) { return data; };
virtual void vic10_cd_w(address_space &space, offs_t offset, UINT8 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) { };
vic10_expansion_slot_device *m_slot;
UINT8 *m_exram;
UINT8 *m_lorom;
UINT8 *m_uprom;
};
// device type definition
extern const device_type VIC10_EXPANSION_SLOT;
#endif
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