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-rw-r--r--src/devices/video/crt9028.h142
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diff --git a/src/devices/video/crt9028.h b/src/devices/video/crt9028.h
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-// license:BSD-3-Clause
-// copyright-holders:AJR
-/**********************************************************************
-
- Standard Microsystems CRT9028/9128 Video Terminal Logic Controller
-
-***********************************************************************
- _____ _____
- DA8 1 |* \__/ | 40 DA7
- DA9 2 | | 39 DA6
- DA10 3 | | 38 DA5
- GND 4 | | 37 DA4
- XTAL2 5 | | 36 DA3
- XTAL1 6 | | 35 DA2
- /VIDEO 7 | | 34 DA1
- INTOUT 8 | | 33 DA0
- /DWR 9 | | 32 DB7
- DD0 10 | CRT 9028 | 31 DB6
- DD1 11 | CRT 9128 | 30 DB5
- DD2 12 | | 29 DB4
- DD3 13 | | 28 DB3
- DD4 14 | | 27 DB2
- DD5 15 | | 26 DB1
- DD6 16 | | 25 DB0
- DD7 17 | | 24 A/D
- HSYNC 18 | | 23 /RD or /DS
- VSYNC 19 | | 22 /WR or R/W
- CSYNC 20 |______________| 21 VCC
-
-**********************************************************************/
-
-#ifndef MAME_VIDEO_CRT9028_H
-#define MAME_VIDEO_CRT9028_H
-
-#pragma once
-
-//**************************************************************************
-// TYPE DEFINITIONS
-//**************************************************************************
-
-// ======================> crt9028_device
-
-class crt9028_device : public device_t, public device_memory_interface, public device_video_interface
-{
-public:
- // device configuration
- auto hsync_callback() { return m_hsync_callback.bind(); }
- auto vsync_callback() { return m_hsync_callback.bind(); }
-
- // read/write handlers
- u8 read(offs_t offset);
- void write(offs_t offset, u8 data);
-
- // screen update method
- u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect);
-
-protected:
- // base type constructor
- crt9028_device(const machine_config &mconfig, device_type type, const char *tag, device_t *owner, u32 clock,
- int dots_per_char, int chars_per_row, int horiz_blanking, int hsync_delay, int hsync_width, bool hsync_active,
- int char_rows, int scans_per_char, bool vsync_active,
- int vert_blanking, int vsync_delay, bool vsync_width,
- int alt_vert_blanking, int alt_vsync_delay, bool alt_vsync_width,
- int csync_delay, int csync_width, int underline,
- u16 wide_gfx_seg1_4, u16 wide_gfx_seg2_5, u16 wide_gfx_seg3_6, u8 wide_gfx_pattern,
- u16 thin_gfx_seg1, u16 thin_gfx_seg2, u16 thin_gfx_seg3, u16 thin_gfx_seg4,
- u8 thin_gfx_dots1, u8 thin_gfx_dots2, u8 thin_gfx_dots3, u8 thin_gfx_dots4);
-
- // device-specific overrides
- virtual void device_config_complete() override;
- virtual void device_resolve_objects() override;
- virtual void device_start() override;
-
- // device_memory_interface overrides
- virtual space_config_vector memory_space_config() const override;
-
-private:
- // register helpers
- void chip_reset();
- u8 status_r();
- void filadd_w(u8 data);
- void tosadd_w(u8 data);
- void curlo_w(u8 data);
- void curhi_w(u8 data);
- void attdat_w(u8 data);
- void mode_w(u8 data);
- u8 character_r();
- void character_w(u8 data);
-
- // address space for display memory
- const address_space_config m_space_config;
- address_space *m_space;
-
- // internal character set
- required_region_ptr<u8> m_charset;
-
- // timing callbacks
- devcb_write_line m_hsync_callback;
- devcb_write_line m_vsync_callback;
-
- // mask parameters
- const int m_dots_per_char;
- const int m_chars_per_row;
- const int m_horiz_blanking;
- const int m_hsync_delay;
- const int m_hsync_width;
- const bool m_hsync_active;
- const int m_char_rows;
- const int m_scans_per_char;
- const bool m_vsync_active;
- const int m_vert_blanking[2];
- const int m_vsync_delay[2];
- const int m_vsync_width[2];
- const int m_csync_delay;
- const int m_csync_width;
- const int m_underline;
- const u16 m_wide_gfx_seg[3];
- const u8 m_wide_gfx_pattern;
- const u16 m_thin_gfx_seg[4];
- const u8 m_thin_gfx_dots[4];
-
- // internal state
- u8 m_address_register;
-};
-
-// ======================> crt9028_000_device
-
-class crt9028_000_device : public crt9028_device
-{
-public:
- // device constructor
- crt9028_000_device(const machine_config &mconfig, const char *tag, device_t *owner, u32 clock);
-
-protected:
- // device-specific overrides
- virtual const tiny_rom_entry *device_rom_region() const override;
-};
-
-// device type declarations
-DECLARE_DEVICE_TYPE(CRT9028_000, crt9028_000_device)
-
-#endif // MAME_VIDEO_CRT9028_H