// license:GPL-2.0+ // copyright-holders:Dirk Best /*************************************************************************** Intel 82730 Text Coprocessor ***************************************************************************/ #ifndef MAME_VIDEO_I82730_H #define MAME_VIDEO_I82730_H #pragma once //************************************************************************** // TYPE DEFINITIONS //************************************************************************** #define I82730_UPDATE_ROW(name) \ void name(bitmap_rgb32 &bitmap, uint16_t *data, uint8_t lc, uint16_t y, int x_count) // ======================> i82730_device class i82730_device : public device_t, public device_video_interface { public: typedef device_delegate update_row_delegate; // construction/destruction template i82730_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock, T &&cpu_tag) : i82730_device(mconfig, tag, owner, clock) { m_cpu.set_tag(std::forward(cpu_tag)); } i82730_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); // callbacks auto sint() { return m_sint_handler.bind(); } // inline configuration template void set_update_row_callback(T &&... args) { m_update_row_cb.set(std::forward(args)...); } uint32_t screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); DECLARE_WRITE_LINE_MEMBER(ca_w); DECLARE_WRITE_LINE_MEMBER(irst_w); protected: virtual void device_start() override; virtual void device_reset() override; private: // status enum { DUR = 0x001, // data underrun LPU = 0x002, // light pen update DBOR = 0x004, // data buffer overrun EONF = 0x008, // end of n frames FDE = 0x010, // frame data error RCC = 0x020, // reserved channel command executed RDC = 0x040, // reserved data stream command executed DIP = 0x080, // display in progress VDIP = 0x100 // virtual display in progress }; static const char *const s_command_names[]; bool sysbus_16bit() { return BIT(m_sysbus, 0); } uint8_t read_byte(offs_t address); uint16_t read_word(offs_t address); void write_byte(offs_t address, uint8_t data); void write_word(offs_t address, uint16_t data); void update_interrupts(); void mode_set(); void execute_command(); void load_row(); TIMER_CALLBACK_MEMBER(row_update); devcb_write_line m_sint_handler; update_row_delegate m_update_row_cb; required_device m_cpu; address_space *m_program; emu_timer *m_row_timer; bitmap_rgb32 m_bitmap; bool m_initialized; bool m_mode_set; int m_ca; // internal registers uint8_t m_sysbus; uint32_t m_ibp; uint32_t m_cbp; uint16_t m_intmask; uint16_t m_status; int m_list_switch; int m_auto_line_feed; uint8_t m_max_dma_count; uint32_t m_lptr; uint32_t m_sptr; int m_dma_burst_space; int m_dma_burst_length; // display parameters int m_hfldstrt; int m_margin; int m_lpr; uint16_t m_field_attribute_mask; int m_vsyncstp; int m_vfldstrt; int m_vfldstp; int m_frame_int_count; // row buffers struct row_buffer { uint16_t data[200]; int count; }; row_buffer m_row[2]; int m_row_index; }; // device type definition DECLARE_DEVICE_TYPE(I82730, i82730_device) #endif // MAME_VIDEO_I82730_H