本帖最后由 805 于 2015-4-11 08:38 编辑 2 | S4 k: O& L
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# W/ E2 j1 E/ A5 w+ ^这款基板主cpu图形处理器和MD是相同的。主cpu只是有点快(8.94 MHz而非 7.67 兆赫)Z80被删除.它依赖于外部硬件Sega 315-5242彩色编码器增加颜色调色板。调色板是能够产生 4096 种颜色. T" G6 c% i/ C2 F" C
技术规格.) `* D t l7 l( j! q0 L
Board composition: Single JAMMA board
) L7 {" v+ U, r* m$ N: L# lMain CPU: MC68000 @ 8.948862 MHz (16-bit & 32-bit instructions @ 1.566 MIPS) |+ _, t! j' k" D! v* o( u
Sound chips: Yamaha YM3438 @ 7.670453, SN76496 @ 3.579545
' j3 o9 H, E1 X% A2 SOptional sound chip: NEC µPD7759 @ 640 kHz (9-bit ADPCM @ 8 kHz sampling rate)8 S5 x3 B- v, Q1 ?/ b
Graphics chips: Yamaha YM7101 VDP, Altera EPM5032, Sega 315-5242 color encoder% V+ |/ y$ r6 B; r
Video resolution: 320×224 pixels
8 a# M7 h! s( x7 T" ~3 u4 G$ t4 LColor palette: 98,304, q% ~/ {" a6 q% ?+ Y
Sega's 16-bit arcade color palette: 15-bit RGB high color depth (32,768 colors) and 1-bit shadow & highlight that triples up to 98,304 colors.
2 ]. z! J) m4 h: ~Colors on screen: 6144
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