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// license:LGPL-2.1+
// copyright-holders:Michael Zapf
/****************************************************************************
GRAM Kracker.
*****************************************************************************/
#ifndef MAME_BUS_TI99_GROMPORT_GKRACKER_H
#define MAME_BUS_TI99_GROMPORT_GKRACKER_H
#pragma once
#include "bus/ti99/ti99defs.h"
#include "cartridges.h"
namespace bus { namespace ti99 { namespace gromport {
class ti99_gkracker_device : public cartridge_connector_device, public device_nvram_interface
{
public:
ti99_gkracker_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock);
void readz(offs_t offset, uint8_t *value) override;
void write(offs_t offset, uint8_t data) override;
void crureadz(offs_t offset, uint8_t *value) override;
void cruwrite(offs_t offset, uint8_t data) override;
DECLARE_WRITE_LINE_MEMBER(romgq_line) override;
void set_gromlines(line_state mline, line_state moline, line_state gsq) override;
DECLARE_WRITE_LINE_MEMBER(gclock_in) override;
void insert(int index, ti99_cartridge_device* cart) override;
void remove(int index) override;
DECLARE_INPUT_CHANGED_MEMBER( gk_changed );
// We may have a cartridge plugged into the GK
bool is_grom_idle() override;
protected:
virtual void device_start() override;
virtual void device_reset() override;
virtual void device_add_mconfig(machine_config &config) override;
virtual const tiny_rom_entry* device_rom_region() const override;
virtual ioport_constructor device_input_ports() const override;
// device_nvram_interface
void nvram_default() override;
void nvram_read(emu_file &file) override;
void nvram_write(emu_file &file) override;
private:
int m_gk_switch[6]; // Used to cache the switch settings.
bool m_romspace_selected;
int m_ram_page;
int m_grom_address;
uint8_t* m_ram_ptr;
uint8_t* m_grom_ptr;
bool m_waddr_LSB;
ti99_cartridge_device *m_cartridge; // guest cartridge
// Just for proper initialization
void gk_install_menu(const char* menutext, int len, int ptr, int next, int start);
};
} } } // end namespace bus::ti99::gromport
DECLARE_DEVICE_TYPE_NS(TI99_GROMPORT_GK, bus::ti99::gromport, ti99_gkracker_device)
#endif // MAME_BUS_TI99_GROMPORT_GKRACKER_H
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