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Diffstat (limited to 'src/devices/bus/centronics/comxpl80.h')
-rw-r--r-- | src/devices/bus/centronics/comxpl80.h | 81 |
1 files changed, 81 insertions, 0 deletions
diff --git a/src/devices/bus/centronics/comxpl80.h b/src/devices/bus/centronics/comxpl80.h new file mode 100644 index 00000000000..4a943459c09 --- /dev/null +++ b/src/devices/bus/centronics/comxpl80.h @@ -0,0 +1,81 @@ +// license:BSD-3-Clause +// copyright-holders:Curt Coder +/********************************************************************** + + COMX PL-80 plotter emulation + +**********************************************************************/ + +#pragma once + +#ifndef __COMX_PL80__ +#define __COMX_PL80__ + +#include "emu.h" +#include "cpu/m6805/m6805.h" +#include "bus/centronics/ctronics.h" + + + +//************************************************************************** +// TYPE DEFINITIONS +//************************************************************************** + +// ======================> comx_pl80_device + +class comx_pl80_device : public device_t, + public device_centronics_peripheral_interface +{ +public: + // construction/destruction + comx_pl80_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock); + + // optional information overrides + virtual const rom_entry *device_rom_region() const; + virtual machine_config_constructor device_mconfig_additions() const; + virtual ioport_constructor device_input_ports() const; + + // not really public + DECLARE_WRITE8_MEMBER( pa_w ); + DECLARE_WRITE8_MEMBER( pb_w ); + DECLARE_WRITE8_MEMBER( pc_w ); + DECLARE_READ8_MEMBER( pd_r ); + +protected: + // device-level overrides + virtual void device_start(); + virtual void device_reset(); + + virtual DECLARE_WRITE_LINE_MEMBER( input_data0 ) { if (state) m_data |= 0x01; else m_data &= ~0x01; } + virtual DECLARE_WRITE_LINE_MEMBER( input_data1 ) { if (state) m_data |= 0x02; else m_data &= ~0x02; } + virtual DECLARE_WRITE_LINE_MEMBER( input_data2 ) { if (state) m_data |= 0x04; else m_data &= ~0x04; } + virtual DECLARE_WRITE_LINE_MEMBER( input_data3 ) { if (state) m_data |= 0x08; else m_data &= ~0x08; } + virtual DECLARE_WRITE_LINE_MEMBER( input_data4 ) { if (state) m_data |= 0x10; else m_data &= ~0x10; } + virtual DECLARE_WRITE_LINE_MEMBER( input_data5 ) { if (state) m_data |= 0x20; else m_data &= ~0x20; } + virtual DECLARE_WRITE_LINE_MEMBER( input_data6 ) { if (state) m_data |= 0x40; else m_data &= ~0x40; } + virtual DECLARE_WRITE_LINE_MEMBER( input_data7 ) { if (state) m_data |= 0x80; else m_data &= ~0x80; } + +private: + required_memory_region m_plotter; + required_ioport m_font; + required_ioport m_sw; + + // PL-80 plotter state + UINT16 m_font_addr; // font ROM pack address latch + UINT8 m_x_motor_phase; // X motor phase + UINT8 m_y_motor_phase; // Y motor phase + UINT8 m_z_motor_phase; // Z motor phase + UINT8 m_plotter_data; // plotter data bus + int m_plotter_ack; // plotter acknowledge + int m_plotter_online; // online LED + + UINT8 m_data; +}; + + +// device type definition +extern const device_type COMX_PL80; + + + +#endif |