// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** SMC CRT9007 CRT Video Processor and Controller (VPAC) emulation ********************************************************************** _____ _____ VA2 1 |* \_/ | 40 GND VA10 2 | | 39 VA9 VA3 3 | | 38 VA1 VA11 4 | | 37 VA8 VA12 5 | | 36 VA0 VA4 6 | | 35 CBLANK VA13 7 | | 34 CURS VA5 8 | | 33 ACK/_TSC VA6 9 | | 32 _CSYNC/LPSTB VA7 10 | CRT9007 | 31 SLD/SL0 VLT 11 | | 30 _SLG/SL1 _VS 12 | | 29 WBEN/SL2/_CSYNC _HS 13 | | 28 DMAR/SL3/VBLANK _CCLK 14 | | 27 INT _DRB 15 | | 26 _RST VD7 16 | | 25 _CS VD6 17 | | 24 VD0 VD5 18 | | 23 VD1 VD4 19 | | 22 VD2 VD3 20 |_____________| 21 +5V **********************************************************************/ #ifndef MAME_VIDEO_CRT9007_H #define MAME_VIDEO_CRT9007_H #pragma once //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> crt9007_device class crt9007_device : public device_t, public device_memory_interface, public device_video_interface { public: // construction/destruction crt9007_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); auto int_callback() { return m_write_int.bind(); } auto dmar_callback() { return m_write_dmar.bind(); } auto vs_callback() { return m_write_vs.bind(); } auto hs_callback() { return m_write_hs.bind(); } auto vlt_callback() { return m_write_vlt.bind(); } auto curs_callback() { return m_write_curs.bind(); } auto drb_callback() { return m_write_drb.bind(); } auto wben_callback() { return m_write_wben.bind(); } auto cblank_callback() { return m_write_cblank.bind(); } auto slg_callback() { return m_write_slg.bind(); } auto sld_callback() { return m_write_sld.bind(); } uint8_t read(offs_t offset); void write(offs_t offset, uint8_t data); void set_character_width(unsigned value); void ack_w(int state); void lpstb_w(int state); protected: // device-level overrides virtual void device_resolve_objects() override; virtual void device_start() override; virtual void device_reset() override; virtual void device_post_load() override; virtual void device_clock_changed() override; // device_memory_interface overrides virtual space_config_vector memory_space_config() const override; TIMER_CALLBACK_MEMBER(hsync_update); TIMER_CALLBACK_MEMBER(vsync_update); TIMER_CALLBACK_MEMBER(vlt_update); TIMER_CALLBACK_MEMBER(cursor_update); TIMER_CALLBACK_MEMBER(drb_update); TIMER_CALLBACK_MEMBER(dma_update); TIMER_CALLBACK_MEMBER(frame_update); private: void crt9007(address_map &map); inline uint8_t readbyte(offs_t address); inline void trigger_interrupt(int line); inline void update_cblank_line(); inline void update_hsync_timer(bool state); inline void update_vsync_timer(bool state); inline void update_vlt_timer(bool state); inline void update_curs_timer(bool state); inline void update_drb_timer(bool state); inline void update_dma_timer(); inline void recompute_parameters(); // address space configurations const address_space_config m_space_config; devcb_write_line m_write_int; devcb_write_line m_write_dmar; devcb_write_line m_write_hs; devcb_write_line m_write_vs; devcb_write_line m_write_vlt; devcb_write_line m_write_curs; devcb_write_line m_write_drb; devcb_write_line m_write_wben; devcb_write_line m_write_cblank; devcb_write_line m_write_slg; devcb_write_line m_write_sld; // registers uint8_t m_reg[0x3d]; uint8_t m_status; uint8_t m_hpixels_per_column; // booleans bool m_disp; bool m_hs; bool m_vs; bool m_cblank; bool m_vlt; bool m_drb; bool m_lpstb; // runtime variables, do not state save int m_vsync_start; int m_vsync_end; int m_hsync_start; int m_hsync_end; int m_vlt_start; int m_vlt_end; int m_vlt_bottom; int m_drb_bottom; //int m_wben; //int m_slg; //int m_sld; // DMA bool m_dmar; bool m_ack; uint16_t m_dma_count; uint16_t m_dma_burst; uint8_t m_dma_delay; // timers emu_timer *m_vsync_timer; emu_timer *m_hsync_timer; emu_timer *m_vlt_timer; emu_timer *m_curs_timer; emu_timer *m_drb_timer; emu_timer *m_dma_timer; emu_timer *m_frame_timer; }; // device type definition DECLARE_DEVICE_TYPE(CRT9007, crt9007_device) #endif // MAME_VIDEO_CRT9007_H