本帖最后由 805 于 2015-4-11 08:38 编辑 4 d+ i" @; {% d: e& a5 E0 {$ q3 ]
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* Z, ^. E3 h- M6 _& U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0 U* n1 Y3 ` a
技术规格.4 A8 j# T M7 B0 c
Board composition: Single JAMMA board. C/ D, ], |/ P; m
Main CPU: MC68000 @ 8.948862 MHz (16-bit & 32-bit instructions @ 1.566 MIPS)1 ?1 J/ J8 U7 D9 [8 f. P/ K4 b- D
Sound chips: Yamaha YM3438 @ 7.670453, SN76496 @ 3.579545
/ s+ ^2 ~. B, c1 t. p& p- Y# h# K4 ^Optional sound chip: NEC µPD7759 @ 640 kHz (9-bit ADPCM @ 8 kHz sampling rate)! p! X% b* U2 v# Y* u
Graphics chips: Yamaha YM7101 VDP, Altera EPM5032, Sega 315-5242 color encoder
- U! q9 W' |+ k% Q, _. ^Video resolution: 320×224 pixels6 Z G+ c- V l. T3 l
Color palette: 98,304
! D% s; p3 s5 g1 C1 H# qSega'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.
# S/ c8 |# X' i' aColors on screen: 6144 / y2 `7 U# c7 k' U
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