// license:BSD-3-Clause // copyright-holders:Curt Coder /********************************************************************** Seiko-Epson SED1330 LCD Controller emulation **********************************************************************/ #ifndef MAME_VIDEO_SED1330_H #define MAME_VIDEO_SED1330_H #pragma once //************************************************************************** // TYPE DEFINITIONS //************************************************************************** // ======================> sed1330_device class sed1330_device : public device_t, public device_memory_interface, public device_video_interface { public: // construction/destruction sed1330_device(const machine_config &mconfig, const char *tag, device_t *owner, uint32_t clock); uint8_t status_r(); void command_w(uint8_t data); uint8_t data_r(); void data_w(uint8_t data); uint32_t screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); protected: // device-level overrides virtual void device_start() override; virtual void device_reset() override; // device_memory_interface overrides virtual space_config_vector memory_space_config() const override; // optional information overrides virtual const tiny_rom_entry *device_rom_region() const override; private: int m_bf; // busy flag uint8_t m_ir; // instruction register uint8_t m_dor; // data output register int m_pbc; // parameter byte counter int m_d; // display enabled int m_sleep; // sleep mode uint16_t m_sag; // character generator RAM start address int m_m0; // character generator ROM (0=internal, 1=external) int m_m1; // character generator RAM D6 correction (0=no, 1=yes) int m_m2; // height of character bitmaps (0=8, 1=16 pixels) int m_ws; // LCD drive method (0=single, 1=dual panel) int m_iv; // screen origin compensation for inverse display (0=yes, 1=no) int m_wf; // AC frame drive waveform period (0=16-line, 1=2-frame) int m_fx; // character width in pixels int m_fy; // character height in pixels int m_cr; // visible line width in characters int m_tcr; // total line width in characters (including horizontal blanking) int m_lf; // frame height in lines uint16_t m_ap; // virtual screen line width in characters uint16_t m_sad1; // display page 1 start address uint16_t m_sad2; // display page 2 start address uint16_t m_sad3; // display page 3 start address uint16_t m_sad4; // display page 4 start address int m_sl1; // display block 1 height in lines int m_sl2; // display block 2 height in lines int m_hdotscr; // horizontal dot scroll in pixels int m_fp; // display page flash control uint16_t m_csr; // cursor address register int m_cd; // cursor increment direction int m_crx; // cursor width int m_cry; // cursor height or location int m_cm; // cursor shape (0=underscore, 1=block) int m_fc; // cursor flash control int m_mx; // screen layer composition method int m_dm; // display mode for pages 1, 3 int m_ov; // graphics mode layer composition // address space configurations const address_space_config m_space_config; memory_access<16, 0, 0, ENDIANNESS_LITTLE>::cache m_cache; inline uint8_t readbyte(offs_t address); inline void writebyte(offs_t address, uint8_t m_data); inline void increment_csr(); void draw_text_scanline(bitmap_ind16 &bitmap, const rectangle &cliprect, int y, int r, uint16_t va, bool cursor); void draw_graphics_scanline(bitmap_ind16 &bitmap, const rectangle &cliprect, int y, uint16_t va); void update_graphics(bitmap_ind16 &bitmap, const rectangle &cliprect); void update_text(bitmap_ind16 &bitmap, const rectangle &cliprect); void sed1330(address_map &map); }; // device type definition DECLARE_DEVICE_TYPE(SED1330, sed1330_device) #endif // MAME_VIDEO_SED1330_H