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Diffstat (limited to 'src/devices/bus/comx35/ram.h')
-rw-r--r-- | src/devices/bus/comx35/ram.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/src/devices/bus/comx35/ram.h b/src/devices/bus/comx35/ram.h new file mode 100644 index 00000000000..3618d6e2b4b --- /dev/null +++ b/src/devices/bus/comx35/ram.h @@ -0,0 +1,53 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + COMX-35 RAM Card emulation + +**********************************************************************/ + +#pragma once + +#ifndef __COMX_RAM__ +#define __COMX_RAM__ + +#include "emu.h" +#include "exp.h" + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> comx_ram_device + +class comx_ram_device : public device_t, + public device_comx_expansion_card_interface +{ +public: + // construction/destruction + comx_ram_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + // device_comx_expansion_card_interface overrides + virtual UINT8 comx_mrd_r(address_space &space, offs_t offset, int *extrom); + virtual void comx_mwr_w(address_space &space, offs_t offset, UINT8 data); + virtual void comx_io_w(address_space &space, offs_t offset, UINT8 data); + +private: + optional_shared_ptr<UINT8> m_ram; + + int m_bank; +}; + + +// device type definition +extern const device_type COMX_RAM; + + +#endif |