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Diffstat (limited to 'src/devices/bus/a2bus/laser128.h')
-rw-r--r-- | src/devices/bus/a2bus/laser128.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/src/devices/bus/a2bus/laser128.h b/src/devices/bus/a2bus/laser128.h new file mode 100644 index 00000000000..de754f3b368 --- /dev/null +++ b/src/devices/bus/a2bus/laser128.h @@ -0,0 +1,54 @@ +// license:BSD-3-Clause +// copyright-holders:R. Belmont +/********************************************************************* + + laser128.h + + Helper to implement the Laser 128's built-in slot peripherals + +*********************************************************************/ + +#ifndef __A2BUS_LASER128__ +#define __A2BUS_LASER128__ + +#include "emu.h" +#include "a2bus.h" + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class a2bus_laser128_device: + public device_t, + public device_a2bus_card_interface +{ +public: + // construction/destruction + a2bus_laser128_device(const machine_config &mconfig, device_type type, const char *name, const char *tag, device_t *owner, UINT32 clock, const char *shortname, const char *source); + a2bus_laser128_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // optional information overrides + virtual machine_config_constructor device_mconfig_additions() const; + +protected: + virtual void device_start(); + virtual void device_reset(); + + // overrides of standard a2bus slot functions + virtual UINT8 read_c0nx(address_space &space, UINT8 offset); + virtual void write_c0nx(address_space &space, UINT8 offset, UINT8 data); + virtual UINT8 read_cnxx(address_space &space, UINT8 offset); + virtual UINT8 read_c800(address_space &space, UINT16 offset); + virtual void write_c800(address_space &space, UINT16 offset, UINT8 data); + virtual bool take_c800(); + +private: + UINT8 *m_rom; + UINT8 m_slot7_ram[0x800]; + int m_slot7_bank, m_slot7_ram_bank; +}; + +// device type definition +extern const device_type A2BUS_LASER128; + +#endif /* __A2BUS_LASER128__ */ |