// license:GPL-2.0+ // copyright-holders:Raphael Nabet #ifndef MAME_VIDEO_911_VDT_H #define MAME_VIDEO_911_VDT_H #pragma once #include "sound/beep.h" #include "emupal.h" #include "screen.h" #define vdt911_chr_region ":gfx1" class vdt911_device : public device_t, public device_gfx_interface { public: enum { /* 10 bytes per character definition */ single_char_len = 10, US_chr_offset = 0, UK_chr_offset = US_chr_offset+128*single_char_len, german_chr_offset = UK_chr_offset+128*single_char_len, swedish_chr_offset = german_chr_offset+128*single_char_len, norwegian_chr_offset = swedish_chr_offset+128*single_char_len, frenchWP_chr_offset = norwegian_chr_offset+128*single_char_len, japanese_chr_offset = frenchWP_chr_offset+128*single_char_len, chr_region_len = japanese_chr_offset+256*single_char_len }; enum class screen_size { char_960 = 0, char_1920 }; enum class model { US = 0, UK, French, German, Swedish, // Swedish/Finnish Norwegian, // Norwegian/Danish Japanese, // Katakana Japanese /*Arabic,*/ // Arabic FrenchWP // French word processing }; vdt911_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); DECLARE_READ8_MEMBER(cru_r); DECLARE_WRITE8_MEMBER(cru_w); auto keyint_cb() { return m_keyint_line.bind(); } auto lineint_cb() { return m_lineint_line.bind(); } protected: // device-level overrides void device_start() override; void device_reset() override; virtual void device_add_mconfig(machine_config &config) override; ioport_constructor device_input_ports() const override; void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; private: void refresh(bitmap_ind16 &bitmap, const rectangle &cliprect, int x, int y); void check_keyboard(); void vdt911_palette(palette_device &palette) const; uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); screen_size m_screen_size; // char_960 for 960-char, 12-line model; char_1920 for 1920-char, 24-line model model m_model; // country code uint8_t m_data_reg; // dt911 write buffer uint8_t m_display_RAM[2048]; // vdt911 char buffer (1kbyte for 960-char model, 2kbytes for 1920-char model) unsigned int m_cursor_address; // current cursor address (controlled by the computer, affects both display and I/O protocol) unsigned int m_cursor_address_mask; // 1023 for 960-char model, 2047 for 1920-char model emu_timer *m_beep_timer; // beep clock (beeps ends when timer times out) emu_timer *m_blink_timer; // cursor blink clock emu_timer *m_line_timer; // screen line timer uint8_t m_keyboard_data; // last code pressed on keyboard bool m_keyboard_data_ready; // true if there is a new code in keyboard_data bool m_keyboard_interrupt_enable; // true when keyboard interrupts are enabled bool m_display_enable; // screen is black when false bool m_dual_intensity_enable; // if true, MSBit of ASCII codes controls character highlight bool m_display_cursor; // if true, the current cursor location is displayed on screen bool m_blinking_cursor_enable; // if true, the cursor will blink when displayed bool m_blink_state; // current cursor blink state bool m_word_select; // CRU interface mode bool m_previous_word_select; // value of word_select is saved here uint8_t m_last_key_pressed; int m_last_modifier_state; char m_foreign_mode; required_device m_beeper; required_device m_screen; required_ioport_array<6> m_keys; devcb_write_line m_keyint_line; devcb_write_line m_lineint_line; }; DECLARE_DEVICE_TYPE(VDT911, vdt911_device) #endif // MAME_VIDEO_911_VDT_H