LoRes X Scroll Register: Difference between revisions
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m Ped7g moved page LoRes Layer X Offset to ULA / LoRes Layer X Offset Register: Core 2.00.26 extendens scrolling capability onto ULA layer |
Core 2.00.26 changes |
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| Line 3: | Line 3: | ||
|Readable=Yes | |Readable=Yes | ||
|Writable=Yes | |Writable=Yes | ||
|ShortDesc=Pixel offset to use when drawing LoRes Layer. | |ShortDesc=Pixel offset to use when drawing ULA or LoRes Layer. | ||
}} | }} | ||
bits 7-0 = X Offset (0-255) (Reset to 0 after a reset) | bits 7-0 = X Offset (0-255) (Reset to 0 after a reset) | ||
ULA screen at this moment scrolls horizontally only by whole "characters" (by multiples of 8 pixels), the low 3 bits of offset value are ignored (as of core 2.00.26, may get modified/updated in later cores to scroll per single pixel also horizontally). | |||
LoRes scrolls in "half-pixels" at the same resolution and smoothness as Layer 2. | |||
Revision as of 14:19, 31 January 2019
| Number | TBRegisterNumber::$32 |
|---|---|
| Readable | TBRegisterReadable::Yes |
| Writable | TBRegisterWritable::Yes |
| Short Description | ShortDesc::Pixel offset to use when drawing ULA or LoRes Layer. |
bits 7-0 = X Offset (0-255) (Reset to 0 after a reset)
ULA screen at this moment scrolls horizontally only by whole "characters" (by multiples of 8 pixels), the low 3 bits of offset value are ignored (as of core 2.00.26, may get modified/updated in later cores to scroll per single pixel also horizontally).
LoRes scrolls in "half-pixels" at the same resolution and smoothness as Layer 2.