Trackball

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Revision as of 01:22, 15 August 2012 by Furrtek (talk | contribs) (Created page with "right Special BIOS: 236-bios.sp1. X counter in {{Reg|REG_P1CNT}} when bit 0 of {{Reg|REG_POUTPUT}} is 0, otherwise Y counter. Refreshed every v...")
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Special BIOS: 236-bios.sp1. X counter in REG_P1CNT when bit 0 of REG_POUTPUT is 0, otherwise Y counter. Refreshed every vblank unconditionnaly by this BIOS.

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