Talk:INES Mapper 068: Difference between revisions

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(→‎Nametables: 1-screen mode)
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"Good clarification, but I still find it worth mentioning that the lower and upper nametables always show up in these two respective areas of PPU address space" - unless you're in 1-screen mirroring mode (which may or may not be supported - my implementation uses a 2-bit mirroring mode for V/H/S0/S1 and Maharaja seems to select S0, though it doesn't seem to do any scrolling). --[[User:Quietust|Quietust]] 21:59, 27 February 2011 (UTC)
"Good clarification, but I still find it worth mentioning that the lower and upper nametables always show up in these two respective areas of PPU address space" - unless you're in 1-screen mirroring mode (which may or may not be supported - my implementation uses a 2-bit mirroring mode for V/H/S0/S1 and Maharaja seems to select S0, though it doesn't seem to do any scrolling). --[[User:Quietust|Quietust]] 21:59, 27 February 2011 (UTC)
:I didn't see anything about 1-screen in Disch's doc. If you can show proof of 1-screen capability in the mapper, say by swapping the original cart's PRG ROM with test code, feel free to edit it in. --[[User:Tepples|Tepples]] 00:14, 28 February 2011 (UTC)
:I didn't see anything about 1-screen in Disch's doc. If you can show proof of 1-screen capability in the mapper, say by swapping the original cart's PRG ROM with test code, feel free to edit it in. --[[User:Tepples|Tepples]] 00:14, 28 February 2011 (UTC)
::The 1-screen part came from [http://nesdev.parodius.com/sunsoft.txt Goroh's document]. --[[User:Quietust|Quietust]] 03:05, 28 February 2011 (UTC)

Revision as of 03:05, 28 February 2011

Nametables

"Good clarification, but I still find it worth mentioning that the lower and upper nametables always show up in these two respective areas of PPU address space" - unless you're in 1-screen mirroring mode (which may or may not be supported - my implementation uses a 2-bit mirroring mode for V/H/S0/S1 and Maharaja seems to select S0, though it doesn't seem to do any scrolling). --Quietust 21:59, 27 February 2011 (UTC)

I didn't see anything about 1-screen in Disch's doc. If you can show proof of 1-screen capability in the mapper, say by swapping the original cart's PRG ROM with test code, feel free to edit it in. --Tepples 00:14, 28 February 2011 (UTC)
The 1-screen part came from Goroh's document. --Quietust 03:05, 28 February 2011 (UTC)