Trackball: Difference between revisions
Jump to navigation
Jump to search
(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...") |
mNo edit summary |
||
| Line 1: | Line 1: | ||
[[File:Irrmaze_bios1.png|right]] | [[File:Irrmaze_bios1.png|right]] | ||
Controller type used only by [[The Irritating Maze]]. | |||
Sort of an upside-down mechanical mouse, uses two optical encoders handled by the [[SIT board]]. | |||
Special [[BIOS]]: 236-bios.sp1. X counter in {{Reg|REG_P1CNT}} when bit 0 of {{Reg|REG_POUTPUT}} is 0, otherwise Y counter. | Special [[BIOS]]: 236-bios.sp1. X counter in {{Reg|REG_P1CNT}} when bit 0 of {{Reg|REG_POUTPUT}} is 0, otherwise Y counter. | ||
Revision as of 05:41, 21 October 2012
Controller type used only by The Irritating Maze.
Sort of an upside-down mechanical mouse, uses two optical encoders handled by the SIT board.
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.