// license:GPL-2.0+ // copyright-holders:Kevin Thacker /***************************************************************************** * * includes/spectrum.h * ****************************************************************************/ #ifndef MAME_INCLUDES_SPECTRUM_H #define MAME_INCLUDES_SPECTRUM_H #pragma once #include "machine/spec_snqk.h" #include "machine/bankdev.h" #include "bus/spectrum/exp.h" #include "imagedev/cassette.h" #include "imagedev/snapquik.h" #include "machine/ram.h" #include "sound/spkrdev.h" #include "emupal.h" #include "screen.h" /* Spectrum crystals */ #define X1 XTAL(14'000'000) // Main clock (48k Spectrum) #define X1_128_AMSTRAD 35469000 // Main clock (Amstrad 128K model, +2A?) #define X1_128_SINCLAIR 17734475 // Main clock (Sinclair 128K model) #define X2 XTAL(4'433'619) // PAL color subcarrier /* Spectrum screen size in pixels */ #define SPEC_UNSEEN_LINES 16 /* Non-visible scanlines before first border line. Some of these may be vertical retrace. */ #define SPEC_TOP_BORDER 48 /* Number of border lines before actual screen */ #define SPEC_DISPLAY_YSIZE 192 /* Vertical screen resolution */ #define SPEC_BOTTOM_BORDER 56 /* Number of border lines at bottom of screen */ #define SPEC_SCREEN_HEIGHT (SPEC_TOP_BORDER + SPEC_DISPLAY_YSIZE + SPEC_BOTTOM_BORDER) #define SPEC_LEFT_BORDER 48 /* Number of left hand border pixels */ #define SPEC_DISPLAY_XSIZE 256 /* Horizontal screen resolution */ #define SPEC_RIGHT_BORDER 48 /* Number of right hand border pixels */ #define SPEC_SCREEN_WIDTH (SPEC_LEFT_BORDER + SPEC_DISPLAY_XSIZE + SPEC_RIGHT_BORDER) #define SPEC_LEFT_BORDER_CYCLES 24 /* Cycles to display left hand border */ #define SPEC_DISPLAY_XSIZE_CYCLES 128 /* Horizontal screen resolution */ #define SPEC_RIGHT_BORDER_CYCLES 24 /* Cycles to display right hand border */ #define SPEC_RETRACE_CYCLES 48 /* Cycles taken for horizontal retrace */ #define SPEC_CYCLES_PER_LINE 224 /* Number of cycles to display a single line */ struct EVENT_LIST_ITEM { /* driver defined ID for this write */ int Event_ID; /* driver defined data for this write */ int Event_Data; /* time at which this write occurred */ int Event_Time; }; class spectrum_state : public driver_device { public: spectrum_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag), m_video_ram(*this, "video_ram"), m_maincpu(*this, "maincpu"), m_screen(*this, "screen"), m_cassette(*this, "cassette"), m_ram(*this, RAM_TAG), m_specmem(*this, "specmem"), m_speaker(*this, "speaker"), m_exp(*this, "exp"), m_io_line0(*this, "LINE0"), m_io_line1(*this, "LINE1"), m_io_line2(*this, "LINE2"), m_io_line3(*this, "LINE3"), m_io_line4(*this, "LINE4"), m_io_line5(*this, "LINE5"), m_io_line6(*this, "LINE6"), m_io_line7(*this, "LINE7"), m_io_nmi(*this, "NMI"), m_io_config(*this, "CONFIG"), m_io_plus0(*this, "PLUS0"), m_io_plus1(*this, "PLUS1"), m_io_plus2(*this, "PLUS2"), m_io_plus3(*this, "PLUS3"), m_io_plus4(*this, "PLUS4"), m_io_joy1(*this, "JOY1"), m_io_joy2(*this, "JOY2") { } void spectrum_common(machine_config &config); void spectrum(machine_config &config); void spectrum_clone(machine_config &config); void spectrum_128(machine_config &config); void init_spectrum(); protected: enum { TIMER_IRQ_ON, TIMER_IRQ_OFF, TIMER_SCANLINE }; int m_port_fe_data; int m_port_7ffd_data; int m_port_1ffd_data; /* scorpion and plus3 */ int m_port_ff_data; /* Display enhancement control */ int m_port_f4_data; /* Horizontal Select Register */ /* video support */ int m_frame_invert_count; int m_frame_number; /* Used for handling FLASH 1 */ int m_flash_invert; optional_shared_ptr m_video_ram; uint8_t *m_screen_location; int m_ROMSelection; emu_timer *m_irq_off_timer; // Build up the screen bitmap line-by-line as the z80 uses CPU cycles. // Elimiates sprite flicker on various games (E.g. Marauder and // Stormlord) and makes Firefly playable. emu_timer *m_scanline_timer; EVENT_LIST_ITEM *m_pCurrentItem; int m_NumEvents; int m_TotalEvents; char *m_pEventListBuffer; int m_LastFrameStartTime; int m_CyclesPerLine; uint8_t *m_ram_0000; uint8_t m_ram_disabled_by_beta; DECLARE_READ8_MEMBER(pre_opcode_fetch_r); DECLARE_WRITE8_MEMBER(spectrum_rom_w); DECLARE_READ8_MEMBER(spectrum_rom_r); DECLARE_READ8_MEMBER(spectrum_data_r); DECLARE_WRITE8_MEMBER(spectrum_data_w); DECLARE_WRITE8_MEMBER(spectrum_port_fe_w); DECLARE_READ8_MEMBER(spectrum_port_fe_r); DECLARE_READ8_MEMBER(spectrum_port_ula_r); DECLARE_READ8_MEMBER(spectrum_clone_port_ula_r); DECLARE_READ8_MEMBER(spectrum_128_pre_opcode_fetch_r); DECLARE_WRITE8_MEMBER(spectrum_128_bank1_w); DECLARE_READ8_MEMBER(spectrum_128_bank1_r); DECLARE_WRITE8_MEMBER(spectrum_128_port_7ffd_w); DECLARE_READ8_MEMBER(spectrum_128_ula_r); DECLARE_MACHINE_RESET(spectrum); DECLARE_VIDEO_START(spectrum); void spectrum_palette(palette_device &palette) const; DECLARE_VIDEO_START(spectrum_128); DECLARE_MACHINE_RESET(spectrum_128); uint32_t screen_update_spectrum(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); DECLARE_WRITE_LINE_MEMBER(screen_vblank_spectrum); INTERRUPT_GEN_MEMBER(spec_interrupt); unsigned int m_previous_border_x, m_previous_border_y; bitmap_ind16 m_border_bitmap; unsigned int m_previous_screen_x, m_previous_screen_y; bitmap_ind16 m_screen_bitmap; void spectrum_128_update_memory(); virtual void plus3_update_memory() { } virtual void ts2068_update_memory() { } DECLARE_SNAPSHOT_LOAD_MEMBER(snapshot_cb); DECLARE_QUICKLOAD_LOAD_MEMBER(quickload_cb); required_device m_maincpu; required_device m_screen; void spectrum_128_io(address_map &map); void spectrum_128_mem(address_map &map); void spectrum_128_fetch(address_map &map); void spectrum_io(address_map &map); void spectrum_clone_io(address_map &map); void spectrum_opcodes(address_map &map); void spectrum_map(address_map &map); void spectrum_data(address_map &map); required_device m_cassette; required_device m_ram; optional_device m_specmem; required_device m_speaker; optional_device m_exp; // Regular spectrum ports; marked as optional because of other subclasses optional_ioport m_io_line0; optional_ioport m_io_line1; optional_ioport m_io_line2; optional_ioport m_io_line3; optional_ioport m_io_line4; optional_ioport m_io_line5; optional_ioport m_io_line6; optional_ioport m_io_line7; optional_ioport m_io_nmi; optional_ioport m_io_config; // Plus ports optional_ioport m_io_plus0; optional_ioport m_io_plus1; optional_ioport m_io_plus2; optional_ioport m_io_plus3; optional_ioport m_io_plus4; // Joystick ports optional_ioport m_io_joy1; optional_ioport m_io_joy2; void spectrum_UpdateBorderBitmap(); void spectrum_UpdateScreenBitmap(bool eof = false); inline unsigned char get_display_color(unsigned char color, int invert); inline void spectrum_plot_pixel(bitmap_ind16 &bitmap, int x, int y, uint32_t color); virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) override; // snapshot helpers void update_paging(); void page_basicrom(); void border_update(int data); void setup_sp(uint8_t *snapdata, uint32_t snapsize); void setup_sna(uint8_t *snapdata, uint32_t snapsize); void setup_ach(uint8_t *snapdata, uint32_t snapsize); void setup_prg(uint8_t *snapdata, uint32_t snapsize); void setup_plusd(uint8_t *snapdata, uint32_t snapsize); void setup_sem(uint8_t *snapdata, uint32_t snapsize); void setup_sit(uint8_t *snapdata, uint32_t snapsize); void setup_zx(uint8_t *snapdata, uint32_t snapsize); void setup_snp(uint8_t *snapdata, uint32_t snapsize); void snx_decompress_block(address_space &space, uint8_t *source, uint16_t dest, uint16_t size); void setup_snx(uint8_t *snapdata, uint32_t snapsize); void setup_frz(uint8_t *snapdata, uint32_t snapsize); void z80_decompress_block(address_space &space, uint8_t *source, uint16_t dest, uint16_t size); void setup_z80(uint8_t *snapdata, uint32_t snapsize); // quickload helpers void log_quickload(const char *type, uint32_t start, uint32_t length, uint32_t exec, const char *exec_format); void setup_scr(uint8_t *quickdata, uint32_t quicksize); void setup_raw(uint8_t *quickdata, uint32_t quicksize); uint8_t floating_bus_r(); }; /*----------- defined in drivers/spectrum.c -----------*/ INPUT_PORTS_EXTERN( spectrum ); INPUT_PORTS_EXTERN( spec128 ); INPUT_PORTS_EXTERN( spec_plus ); #endif // MAME_INCLUDES_SPECTRUM_H