diff options
Diffstat (limited to 'src/devices/bus/a2bus/a2ultraterm.h')
-rw-r--r-- | src/devices/bus/a2bus/a2ultraterm.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/src/devices/bus/a2bus/a2ultraterm.h b/src/devices/bus/a2bus/a2ultraterm.h new file mode 100644 index 00000000000..a9f9745f2cc --- /dev/null +++ b/src/devices/bus/a2bus/a2ultraterm.h @@ -0,0 +1,79 @@ +// license:BSD-3-Clause +// copyright-holders:R. Belmont +/********************************************************************* + + a2ultraterm.h + + Implementation of the Videx UltraTerm 80/132/160-column video card + +*********************************************************************/ + +#ifndef __A2BUS_ULTRATERM__ +#define __A2BUS_ULTRATERM__ + +#include "emu.h" +#include "a2bus.h" +#include "video/mc6845.h" + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +class a2bus_videx160_device: + public device_t, + public device_a2bus_card_interface +{ +public: + // construction/destruction + a2bus_videx160_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); + + // optional information overrides + virtual machine_config_constructor device_mconfig_additions() const; + + DECLARE_WRITE_LINE_MEMBER(vsync_changed); + MC6845_UPDATE_ROW(crtc_update_row); + + UINT8 *m_rom, *m_chrrom; + UINT8 m_ram[256*16]; + int m_framecnt; + UINT8 m_ctrl1, m_ctrl2; + +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 void write_cnxx(address_space &space, UINT8 offset, UINT8 data); + virtual UINT8 read_c800(address_space &space, UINT16 offset); + virtual void write_c800(address_space &space, UINT16 offset, UINT8 data); + + required_device<mc6845_device> m_crtc; + +private: + int m_rambank; +}; + +class a2bus_ultraterm_device : public a2bus_videx160_device +{ +public: + a2bus_ultraterm_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + virtual const rom_entry *device_rom_region() const; +}; + +class a2bus_ultratermenh_device : public a2bus_videx160_device +{ +public: + a2bus_ultratermenh_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + virtual const rom_entry *device_rom_region() const; +}; + +// device type definition +extern const device_type A2BUS_ULTRATERM; +extern const device_type A2BUS_ULTRATERMENH; + +#endif /* __A2BUS_ULTRATERM__ */ |