Codex Gamicus
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The Taito Z System is a 16-bit arcade system board released by Taito in 1987.[1] It was followed by an enhanced 32-bit upgrade, the Taito SZ System, in 1992.[2]

Specifications[]

  • Board composition: CPU Board, Video Board, Sound Board[1]
  • CPU:[3]
    • Main: Motorola MC68000 (16/32-bit) @ 16 MHz (2.8 MIPS[4]) (handles screen, palette, sprites, inputs and road)
    • Secondary: Motorola MC68000 (16/32-bit) @ 12 MHz (2.8 MIPS[4]) (handles inputs, DIP switches, sound and road)
    • Sound: Zilog Z80 (8/16-bit) @ 4 MHz (0.58 MIPS[4])
  • Sound chips:
    • Yamaha YM2610B:
      • 6 FM synthesis channels
      • 6 ADPCM channels @ 18.5 kHz sampling rate, 12-bit audio depth[5]
      • 1 ADPCM channel @ 1.85–55.5 kHz sampling rate, 16-bit audio depth[5]
    • Taito TC0060DCA DAC
    • Taito TC0100SYT Sound Communication[1]
  • GPU: Taito custom chipset @ 26.686 MHz[1]
    • TC0070RGB RGB/Video Mixer
    • TC0220IOC Input/Output
    • TC0110PCR Palette Generator
    • TC0100SCN Tilemap Generator
    • TC0150ROD Road Generator
    • TC0320OBR Road Object Generator
    • Motion Object Generator chipset (TC0050VDZ, TC0170ABT, TC0020VAR)
  • Video resolution:[1]
  • Refresh rate: 60 Hz[1] (60 frames per second)
  • Colors:[1]
  • Graphical features: Stereoscopic 3D glasses support[1]
  • Graphical layers: 5–7 planes[3]
    • 2–4 tiled scrolling planes: 1–2 background layers, 1–2 foreground layers, 64×64 tiles per plane, 8×8 pixels per tile
    • Sprite plane
    • Road plane
    • Text plane
  • Sprite capabilities: Sprite buffer, sprite zooming, sprite flipping (horizontal & vertical)[6]
    • Sprite sizes: 16×8, 16×16, 32×128, 64×64, 64×128, 128×128[1]
    • Colors per sprite: 16 (4-bit),[1] 128 (7-bit), 256 (8-bit)[6]
    • Sprites on screen: 7–8 bytes per sprite,[6] 1.75–4 KB (1792–4096 bytes) sprite RAM,[1] 224-512 sprites on screen
    • Sprite pixels/texels: 26.686 MHz video clock cycles,[1] 444,766 texels per frame (60 frames per second), 1737 texels per scanline (256 scanlines), 108 sprites per scanline (16-pixel width)
  • RAM: 145.75–148 KB (48 KB SRAM)[1]
    • Main CPU: 105.75–108 KB (16 KB main, 16 KB shared, 64 KB tilemaps, 8 KB root, 1.75–4 KB sprites)
    • Secondary CPU: 32 KB (16 KB main, 16 KB shared)
    • Sound CPU: 8 KB
  • ROM: 5768.5–9154.5 KB (256–512 KB main CPU, 256 KB secondary CPU, 64–128 KB sound CPU, 3–5.5 MB graphics, 578.5–584.5 KB user, 1.5–2 MB YM2610)[7][8]

Taito SZ System[]

The Taito SZ System,[2] also known as the Taito 68020,[9] is an enhanced 32-bit upgrade of the Taito Z System.[2] It debuted with Gun Buster in 1992.[2] The SZ System includes the following upgraded specifications:

  • CPU:
    • Main: Motorola M68EC020 (32-bit) @ 16-32 MHz[2][9] (4.85–9.7 MIPS[10])
    • Sound: Motorola 68000[11] (16/32-bit) @ 16-20 MHz[9] (2.8–3.5 MIPS[4])
  • Sound chips: Ensoniq sound chipset (ES5701, ES5510, ES5505) @ 16–30.47618 MHz[9]
  • GPU: Taito custom chipset @ 40 MHz[2]
    • TC0480SCP Tilemap Generator
    • TC0570SPC Object Chip[9]
    • TC0260DAR Pallette Controller[12][13]
  • Display: Single monitor, dual-monitor[14]
    • Display resolution: 320×240 (single monitor)[2] to 640×240 (dual-monitor)
    • Colors on screen: 8192 (13-bit)[15] to 16,384 (14-bit)[16]
    • Color palette: 32,768 (15-bit) (single monitor)[2] to 65,536 (16-bit) (dual-monitor)
  • Tile layers: 4 scrolling tiled planes[17]
  • Sprite capabilities:[17]
    • Sprite sizes: 16×16, 32×32, 64×64
    • Colors per sprite: 16 (4-bit) to 256 (8-bit)
    • Sprites on screen: 8 bytes per sprite,[17] 8 KB (8192 bytes) sprite RAM,[2] 1024 sprites on screen
    • Sprite pixels/texels: 40 MHz video clock cycles,[2] 666,666 texels per frame (60 frames per second), 2604 texels per scanline (256 scanlines), 162 sprites per scanline (16-pixel width)
  • Memory:
    • RAM: 226 KB (128 KB main, 8 KB sprites, 2 KB sound, 64 KB TC0480SCP, 8 KB palette, 16 KB other)[2]
    • ROM: 9984.125–32,000.125 KB (1–2 MB main CPU, 256–512 KB sound CPU, 5–22 MB graphics, 512–768 KB user, 3–6 MB Ensoniq, 128 bytes EEPROM, 256 KB optional sub-RAM)[15][16]

Taito Z System games[]

Taito SZ System games[]

The following games were released for the Taito SZ System / Taito 68020 hardware:[2][9]

  • Gun Buster (1992)
  • Galactic Storm (1992)
  • Ground Effects (1993)
  • Super Chase: Criminal Termination (1993)
  • Super Ground Effects (1993)
  • Under Fire (1993)
  • Chase Bombers (1994)

References[]

External links[]

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