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Updated Amiga Graphics: Fragments of Facts (markdown)

Thomas Harte 2021-07-28 15:52:33 -04:00
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Amiga-Graphics:-Fragments-of-Facts.md

@ -18,7 +18,7 @@ Bitmap data fetch start time is programmable but may not begin earlier than slot
## DMA Priority ## DMA Priority
1. Bitplane fetching (or disk/sprite/refresh, per line region) 1. Bitplane fetching (or disk/sprite/refresh, per region within a line)
2. Copper 2. Copper
3. Blitter 3. Blitter
4. CPU 4. CPU
@ -29,6 +29,8 @@ The Copper will use odd-numbered slots only; those are the same slots otherwise
## Bitplane Fetches ## Bitplane Fetches
Requesting seven bitplanes results in fetching as though you'd requested four, followed by output as if you'd requested six. So bit planes 5 and 6 will endlessly repeat whatever value is in their data register.
### Low-resolution ### Low-resolution
An eight-slot fetch pattern is followed: An eight-slot fetch pattern is followed: