Palette Value (8 bit colour) Register: Difference between revisions
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Rewording a bit and adding info from web docs. |
Fixing read/write vs index auto increment description, thanks to Garry help on Facebook to identify the mistake |
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After the write, the palette index is auto-incremented to the next index, if the auto-increment is enabled at {{NextRegNo|$43}}. | After the write, the palette index is auto-incremented to the next index, if the auto-increment is enabled at {{NextRegNo|$43}}. | ||
Read does not auto-increment the index, and reads always the top 8 bits of colour from palette, to read the 9th bit of colour, use {{NextRegNo|$44}} in tandem with value from this register. | |||
The modified palette remains until a Hard Reset. | The modified palette remains until a Hard Reset. | ||
Revision as of 23:31, 6 January 2019
| Number | TBRegisterNumber::$41 |
|---|---|
| Readable | TBRegisterReadable::Yes |
| Writable | TBRegisterWritable::Yes |
| Short Description | ShortDesc::Use to set/read 8-bit colours of the ULANext palette. |
Bits 7-0 = Eight bit colour for the palette index selected by the {{#ask: TBRegisterNumber::$40 }} ($40).
Format is RRRGGGBB - Note the lowest blue bit of colour (ninth bit) will be set to an OR between bit 1 and bit 0.
After the write, the palette index is auto-incremented to the next index, if the auto-increment is enabled at {{#ask: TBRegisterNumber::$43 }} ($43).
Read does not auto-increment the index, and reads always the top 8 bits of colour from palette, to read the 9th bit of colour, use {{#ask: TBRegisterNumber::$44 }} ($44) in tandem with value from this register.
The modified palette remains until a Hard Reset.