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-rw-r--r--src/mame/video/911_vdt.h118
1 files changed, 118 insertions, 0 deletions
diff --git a/src/mame/video/911_vdt.h b/src/mame/video/911_vdt.h
new file mode 100644
index 00000000000..7eb0f55dbc1
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+++ b/src/mame/video/911_vdt.h
@@ -0,0 +1,118 @@
+// license:GPL-2.0+
+// copyright-holders:Raphael Nabet
+
+#include "sound/beep.h"
+
+#define vdt911_chr_region ":gfx1"
+enum
+{
+ /* 10 bytes per character definition */
+ vdt911_single_char_len = 10,
+
+ vdt911_US_chr_offset = 0,
+ vdt911_UK_chr_offset = vdt911_US_chr_offset+128*vdt911_single_char_len,
+ vdt911_german_chr_offset = vdt911_UK_chr_offset+128*vdt911_single_char_len,
+ vdt911_swedish_chr_offset = vdt911_german_chr_offset+128*vdt911_single_char_len,
+ vdt911_norwegian_chr_offset = vdt911_swedish_chr_offset+128*vdt911_single_char_len,
+ vdt911_frenchWP_chr_offset = vdt911_norwegian_chr_offset+128*vdt911_single_char_len,
+ vdt911_japanese_chr_offset = vdt911_frenchWP_chr_offset+128*vdt911_single_char_len,
+
+ vdt911_chr_region_len = vdt911_japanese_chr_offset+256*vdt911_single_char_len
+};
+
+enum vdt911_screen_size_t { char_960 = 0, char_1920 };
+enum vdt911_model_t
+{
+ vdt911_model_US = 0,
+ vdt911_model_UK,
+ vdt911_model_French,
+ vdt911_model_German,
+ vdt911_model_Swedish, // Swedish/Finnish
+ vdt911_model_Norwegian, // Norwegian/Danish
+ vdt911_model_Japanese, // Katakana Japanese
+ /*vdt911_model_Arabic,*/ // Arabic
+ vdt911_model_FrenchWP // French word processing
+};
+
+class vdt911_device : public device_t
+{
+public:
+ vdt911_device(const machine_config &mconfig, const char *tag, device_t *owner, UINT32 clock);
+
+ DECLARE_READ8_MEMBER(cru_r);
+ DECLARE_WRITE8_MEMBER(cru_w);
+
+ DECLARE_PALETTE_INIT(vdt911);
+
+ template<class _Object> static devcb_base &static_set_keyint_callback(device_t &device, _Object object)
+ {
+ return downcast<vdt911_device &>(device).m_keyint_line.set_callback(object);
+ }
+
+ template<class _Object> static devcb_base &static_set_lineint_callback(device_t &device, _Object object)
+ {
+ return downcast<vdt911_device &>(device).m_lineint_line.set_callback(object);
+ }
+
+ UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect);
+
+protected:
+ // device-level overrides
+ void device_config_complete();
+ void device_start();
+ void device_reset();
+
+ machine_config_constructor device_mconfig_additions() const;
+ ioport_constructor device_input_ports() const;
+
+ void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr);
+
+private:
+ void refresh(bitmap_ind16 &bitmap, const rectangle &cliprect, int x, int y);
+ int get_refresh_rate();
+ void check_keyboard();
+
+ vdt911_screen_size_t m_screen_size; // char_960 for 960-char, 12-line model; char_1920 for 1920-char, 24-line model
+ vdt911_model_t m_model; // country code
+
+ UINT8 m_data_reg; // dt911 write buffer
+ UINT8 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 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 keybord 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 m_last_key_pressed;
+ int m_last_modifier_state;
+ char m_foreign_mode;
+
+ required_device<beep_device> m_beeper;
+ required_device<gfxdecode_device> m_gfxdecode;
+ required_device<palette_device> m_palette;
+ devcb_write_line m_keyint_line;
+ devcb_write_line m_lineint_line;
+};
+
+extern const device_type VDT911;
+
+#define MCFG_VDT911_KEYINT_HANDLER( _intcallb ) \
+ devcb = &vdt911_device::static_set_keyint_callback( *device, DEVCB_##_intcallb );
+
+#define MCFG_VDT911_LINEINT_HANDLER( _intcallb ) \
+ devcb = &vdt911_device::static_set_lineint_callback( *device, DEVCB_##_intcallb );