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PostPosted: Sat Jun 11, 2016 5:01 pm 
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I found this link:
http://wiki.nesdev.com/w/index.php/PowerPak
and at "PowerPak development resources" section,have this:
Source code for some of Loopy's mappers (Verilog): powerpak_loopy_src.zip

But I can not download powerpak_loopy_src.zip

any one have this code.


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PostPosted: Sat Jun 11, 2016 5:38 pm 
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Here you go.
Code:
   Myask   loopy : Looks like someone on Nesdev is looking for your mapper sources which got taken down. It OK if I repost them?
   loopy   yeah I guess so


As for
byemu wrote:
loopy wrote:
tepples wrote:
Could you elaborate on what kind of conditions would have caused such a glitch in old MAP04 versions, so that I can trigger these conditions in my test ROM to make sure this doesn't happen again?


PRG /CE (which is used by the mapper to get A15) changes slightly after M2. Writes to E000-FFFF would briefly assert WRAM /WE, causing ram corruption.


How how to solve the problem?
Is there a powerpak mapper sourcecode or code section?

The use of m2_n (slightly delayed from /ce) for WRAM /WE fixes this problem. It's present in these sources.


Attachments:
powerpak_loopy_src.zip [17.29 KiB]
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PostPosted: Sun Jun 12, 2016 3:59 am 
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thank you.


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