Global Transparency Colour Register: Difference between revisions
From SpecNext Wiki
m Hyphz moved page Layer 2 Transparency Register to Global Transparency Register |
Updated information about 1-bit tilemaps. |
||
| (4 intermediate revisions by 3 users not shown) | |||
| Line 3: | Line 3: | ||
|Readable=Yes | |Readable=Yes | ||
|Writable=Yes | |Writable=Yes | ||
|ShortDesc=Sets the | |ShortDesc=Sets the "transparent" colour for Layer 2, ULA and LoRes pixel data. | ||
}} | }} | ||
Transparency color value (0xE3 after a reset). | |||
This value is 8-bit only, so the transparency is compared only by the MSB bits of the final colour. | |||
This only affects Layer 2, ULA, LoRes and 1-bit ("text mode") tilemap. Sprites use {{NextRegNo|$4B}} for transparency, 4-bit Tilemap uses {{NextRegNo|$4C}}. | |||
Revision as of 16:24, 6 September 2020
| Next Register Number | $14 |
|---|---|
| Readable | Yes |
| Writable | Yes |
| Short Description | Sets the "transparent" colour for Layer 2, ULA and LoRes pixel data. |
Transparency color value (0xE3 after a reset).
This value is 8-bit only, so the transparency is compared only by the MSB bits of the final colour.
This only affects Layer 2, ULA, LoRes and 1-bit ("text mode") tilemap. Sprites use NextReg:$4B for transparency, 4-bit Tilemap uses NextReg:$4C.