Register - Fixed Regions: Difference between revisions
From NerdConsole
Jump to navigationJump to search
NerdOfEpic (talk | contribs) (Created page with "Fixed Regions registers hold the number of tiles from each side of the screen are being identified as fixed in place. These areas get their name table information from the fixed name table which does not scroll instead of from the normal main name table. {| class="wikitable" ! Bit !! 7 !! 6 !! 5 !! 4 !! 3 !! 2 !! 1 !! 0 |- ! Byte 0 | T || T || T || T || B || B || B || B |- ! Byte 1 | L || L || L || L || R || R || R || R |} === Key === * T - Number of tiles from the...") |
NerdOfEpic (talk | contribs) No edit summary |
||
| Line 4: | Line 4: | ||
! Bit !! 7 !! 6 !! 5 !! 4 !! 3 !! 2 !! 1 !! 0 | ! Bit !! 7 !! 6 !! 5 !! 4 !! 3 !! 2 !! 1 !! 0 | ||
|- | |- | ||
! | ! $0290 | ||
| T || T || T || T || B || B || B || B | | T || T || T || T || B || B || B || B | ||
|- | |- | ||
! | ! $0291 | ||
| L || L || L || L || R || R || R || R | | L || L || L || L || R || R || R || R | ||
|} | |} | ||
Revision as of 20:39, 15 January 2024
Fixed Regions registers hold the number of tiles from each side of the screen are being identified as fixed in place. These areas get their name table information from the fixed name table which does not scroll instead of from the normal main name table.
| Bit | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|---|---|---|---|---|---|---|---|---|
| $0290 | T | T | T | T | B | B | B | B |
| $0291 | L | L | L | L | R | R | R | R |
Key
- T - Number of tiles from the Top. [0-15]
- B - Number of tiles from the Bottom. [0-15]
- L - Number of tiles from the Left. [0-15]
- R - Number of tiles from the Right. [0-15]
This register is a part of the Control Page.