37 lines
1.3 KiB
Markdown
37 lines
1.3 KiB
Markdown
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# Arcade Cabinets
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#### PSX-Based Arcade Boards
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```
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Namco System 11, System 12 (and System 10?)
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Capcom/Sony ZN-1, ZN-2
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Konami GV, Konami GQ
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Taito FX-1A, Taito FX-1B
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Atlus PSX, PS Arcade 95, Tecmo TPS
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```
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#### CPU
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Same as in PSX. Except, one board is said to be having the CPU clocked at
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48MHz, instead of 33MHz???<br/>
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#### GPU
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Same as in PSX. Except, most or all boards are said to have 2MB VRAM instead of
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1MB. Unknown how the extra VRAM is accessed... maybe as Y=512..1023... (though
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the PSX VRAM transfer commands are limited to 9bit Ysiz values, but maybe Y
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coordinates can be 10bit wide).<br/>
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#### ROM vs CDROM
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Arcade games are stored on ROM (or FLASH) instead of using CDROM drives.<br/>
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#### SPU
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Most PSX-based arcade boards are having the PSX-SPU replaced by a different
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sound chip (with each arcade manufacturer using their own custom sound chip,
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often controlled by a separate sound CPU).<br/>
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#### Controls
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Arcade boards are typically having digital joysticks instead of joypads, with
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differently named buttons (instead of /\,[],(),\>\<), probably accessed via
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custom I/O ports (instead of serial transmission)? Plus additional coin inputs
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and DIP switches.<br/>
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Note: There's no documentation for those arcade boards yet, however, it might
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be possible to extract that info from MAME source code.<br/>
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