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PostPosted: Sun Feb 23, 2014 1:29 pm 
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Location: UK (temporarily)
krzysiobal wrote:
It must be complicate, because it contains BNROM games (contra), CNROM (tetris2, road fighter)
Can't be that complicated. The parts in your picture only have room for 10 bits of state (two in the 74'74, eight in the 74'273).


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PostPosted: Sun Feb 23, 2014 1:32 pm 
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What about the PAL?


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PostPosted: Sun Feb 23, 2014 1:54 pm 
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PAL16L8 doesn't have any latches, apparently.


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PostPosted: Sun Feb 23, 2014 5:13 pm 
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"Tetris 2" in multicarts is usually Tengen Tetяis with the title screen stripped out so that it fits in NROM. (It appears the multicart makers never found LJ65, unfortunately.) Contra is a 128K UNROM.

In theory, it wouldn't take that much state to select among these games: 6 bits for a 16K bank number, 1 for selecting H or V mirroring, and 2 for selecting 16K NROM, 32K NROM, or 128K UNROM. (At least that's the approach 100-in-1 Contra Function 16 uses.) To fake state on a latchless PAL, can't you just designate an output that loops around to an input? In any case, most of the bits could go straight to the ROM through a '161 or '377.


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PostPosted: Sun Feb 23, 2014 7:12 pm 
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100-in-1 Contra Function 16...

One day, it will be MINE!


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PostPosted: Sun Feb 23, 2014 8:10 pm 
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lidnariq wrote:
PAL16L8 doesn't have any latches, apparently.

Right, but you can make some inside since it has feedback inputs.


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PostPosted: Mon Feb 24, 2014 12:29 pm 
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Why did they use a separate EPROM for menu?
While they made a lot of NROMs to run with CHR-RAM

Image


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PostPosted: Tue Jul 11, 2017 11:26 pm 
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naruko wrote:
すばらしい!

C# で作ると Windows Vista/7/8 でも問題なく動きそうですね。
本日、解析材料を借りれたのに anago が Windows 7 で動かず作者の私が困ってます。
Linux 使おう...

kazzo can support all os,include windows 10 (x86/x64)


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