// license:GPL-2.0+ // copyright-holders:Raphael Nabet #ifndef MAME_VIDEO_733_ASR #define MAME_VIDEO_733_ASR #pragma once #include "emupal.h" #include "screen.h" #define asr733_chr_region ":gfx1" class asr733_device : public device_t, public device_gfx_interface { public: enum { /* 8 bytes per character definition */ single_char_len = 8, chr_region_len = 128*single_char_len }; asr733_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; void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; ioport_constructor device_input_ports() const override; private: // internal state #if 0 uint8_t m_OutQueue[ASROutQueueSize]; int m_OutQueueHead; int m_OutQueueLen; #endif void check_keyboard(); void refresh(bitmap_ind16 &bitmap, int x, int y); void set_interrupt_line(); void draw_char(int character, int x, int y, int color); void linefeed(); void transmit(uint8_t data); uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); required_device m_screen; emu_timer *m_line_timer; // screen line timer uint8_t m_recv_buf; uint8_t m_xmit_buf; uint8_t m_status; uint8_t m_mode; uint8_t m_last_key_pressed; int m_last_modifier_state; unsigned char m_repeat_timer; int m_new_status_flag; int m_x; std::unique_ptr m_bitmap; devcb_write_line m_keyint_line; devcb_write_line m_lineint_line; }; DECLARE_DEVICE_TYPE(ASR733, asr733_device) #endif // MAME_VIDEO_733_ASR