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// license:LGPL-2.1+
// copyright-holders:Michael Zapf
/***************************************************************************
Gromport (Cartridge port) of the TI-99 consoles
For details see gromport.cpp
Michael Zapf
***************************************************************************/
#ifndef MAME_BUS_TI99_GROMPORT_GROMPORT_H
#define MAME_BUS_TI99_GROMPORT_GROMPORT_H
#pragma once
#define TI99_GROMPORT_TAG "gromport"
namespace bus::ti99::gromport {
struct pcb_type
{
int id;
const char* name;
};
class ti99_cartridge_device;
class cartridge_connector_device;
class gromport_device : public device_t, public device_single_card_slot_interface<cartridge_connector_device>
{
public:
template <typename U>
gromport_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, U &&opts, const char *dflt)
: gromport_device(mconfig, tag, owner, clock)
{
option_reset();
opts(*this);
set_default_option(dflt);
set_fixed(false);
}
gromport_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
void readz(offs_t offset, uint8_t *value);
void write(offs_t offset, uint8_t data);
void crureadz(offs_t offset, uint8_t *value);
void cruwrite(offs_t offset, uint8_t data);
void ready_line(int state);
void romgq_line(int state);
void set_gromlines(line_state mline, line_state moline, line_state gsq);
void gclock_in(int state);
void cartridge_inserted();
bool is_grom_idle();
auto ready_cb() { return m_console_ready.bind(); }
auto reset_cb() { return m_console_reset.bind(); }
// Configure for 16K ROM space (TI-99/8 only)
gromport_device& extend() { m_mask = 0x3fff; return *this; }
protected:
virtual void device_start() override ATTR_COLD;
virtual void device_reset() override ATTR_COLD;
virtual void device_config_complete() override;
virtual ioport_constructor device_input_ports() const override ATTR_COLD;
private:
cartridge_connector_device* m_connector;
bool m_reset_on_insert;
devcb_write_line m_console_ready;
devcb_write_line m_console_reset;
int m_romgq;
int m_mask;
};
class cartridge_connector_device : public device_t
{
friend class gromport_device;
public:
virtual void readz(offs_t offset, uint8_t *value) = 0;
virtual void write(offs_t offset, uint8_t data) = 0;
virtual void setaddress_dbin(offs_t offset, int state) { }
virtual void crureadz(offs_t offset, uint8_t *value) = 0;
virtual void cruwrite(offs_t offset, uint8_t data) = 0;
virtual void romgq_line(int state) = 0;
virtual void set_gromlines(line_state mline, line_state moline, line_state gsq) =0;
virtual void gclock_in(int state) = 0;
void ready_line(int state);
virtual void insert() { m_gromport->cartridge_inserted(); }
virtual void remove() { }
virtual bool is_grom_idle() = 0;
protected:
cartridge_connector_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, uint32_t clock);
gromport_device* m_gromport;
bool m_grom_selected;
void set_port(gromport_device* gromport) { m_gromport = gromport; }
};
} // end namespace bus::ti99::gromport
DECLARE_DEVICE_TYPE_NS(TI99_GROMPORT, bus::ti99::gromport, gromport_device)
void ti99_gromport_options(device_slot_interface &device);
void ti99_gromport_options_998(device_slot_interface &device);
#endif // MAME_BUS_TI99_GROMPORT_GROMPORT_H
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