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Diffstat (limited to 'src/devices/bus/ti99/peb/myarcmem.h')
-rw-r--r-- | src/devices/bus/ti99/peb/myarcmem.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/src/devices/bus/ti99/peb/myarcmem.h b/src/devices/bus/ti99/peb/myarcmem.h new file mode 100644 index 00000000000..e2cf05d8660 --- /dev/null +++ b/src/devices/bus/ti99/peb/myarcmem.h @@ -0,0 +1,48 @@ +// license:LGPL-2.1+ +// copyright-holders:Michael Zapf +/**************************************************************************** + + TI-99 Myarc memory expansion + See myarcmem.c for documentation + + Michael Zapf, September 2010 + February 2012: Rewritten as class + +*****************************************************************************/ + +#ifndef MAME_BUS_TI99_PEB_MYARCMEM_H +#define MAME_BUS_TI99_PEB_MYARCMEM_H + +#pragma once + +#include "peribox.h" +#include "machine/ram.h" + +DECLARE_DEVICE_TYPE(TI99_MYARCMEM, myarc_memory_expansion_device) + +class myarc_memory_expansion_device : public ti_expansion_card_device +{ +public: + myarc_memory_expansion_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; + +protected: + void device_start() override; + void device_reset() override; + const tiny_rom_entry *device_rom_region() const override; + ioport_constructor device_input_ports() const override; + machine_config_constructor device_mconfig_additions() const override; + +private: + int get_base(int offset); + required_device<ram_device> m_ram; + uint8_t* m_dsrrom; + int m_bank; + int m_size; +}; + +#endif // MAME_BUS_TI99_PEB_MYARCMEM_H |