The 'Sprite Attribute Upload' has 3 bits for x, y- mirroring and rotation.
What is the order in which those are executed?
Is it mirrored first then rotated?
Or first rotated and then mirrored?
Search found 55 matches
- Wed Sep 05, 2018 4:05 pm
- Forum: Software
- Topic: Memory bank switching improvement
- Replies: 1
- Views: 424
I was wondering if there exist ideas to improve the memory switching in the future. Currently the bank switching switches all accesses at the same time, i.e. READ, WRITE and OPCODE fetch. It would beneficial to have an independent memory bank switching for any of those accesses. I.e. it can simplify...
If I use a palette offset as attribute in byte 3 of the Sprite Attributes what happens to the sprite transparency color. Will the offset be added to that as well? I.e. it's not so clear to me if the transparency color is an index to the color or the color itself. It would make sense if it would be a...
Another question: Is it possible to access the sprite attributes also individually. According the documentation (wiki) there are 4 bytes that can be written by writing to port 0x57. byte 0: X-pos byte 1: Y-pos byte 2: Palette offset etc byte 3: Visibility + pattern index etc. Is it possible to acces...