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-rw-r--r--src/devices/bus/ti99/gromport/gkracker.h71
1 files changed, 71 insertions, 0 deletions
diff --git a/src/devices/bus/ti99/gromport/gkracker.h b/src/devices/bus/ti99/gromport/gkracker.h
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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);
+
+ DECLARE_READ8Z_MEMBER(readz) override;
+ DECLARE_WRITE8_MEMBER(write) override;
+ DECLARE_READ8Z_MEMBER(crureadz) override;
+ DECLARE_WRITE8_MEMBER(cruwrite) override;
+ DECLARE_WRITE_LINE_MEMBER(romgq_line) override;
+ DECLARE_WRITE8_MEMBER(set_gromlines) 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 machine_config_constructor device_mconfig_additions() const 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