ProgNam vs ProgEP

[pierpa86]

Hello Guys,
Here another crazy question for crazy repair/test...
This game is a problem to convert or repair because it uses ProgNam, guess what? only this game exists.
However, I managed to buy a Puzzled with problems on the V roms, they are all broken !

Checking Nam's card I see that both are without PCM and use the same audio channels.
The only difference is that here the V11 and V21 use a 40pin maskrom equivalent to the MX4100 and not a DIP32 like the v22 and 23.

So my plan is, convert Nam1975 from a ProgNam to a ProgEp and use hacked P1 with gameplay !
What can go wrong?

https://www.mvs-scans.com/index.php/File:Nam_1975_set1_b1_front.jpg
https://www.mvs-scans.com/index.php/File:Puzzled_set1_b1_front.jpg

 

[pierpa86]

It’s work ! You can use PROG-EP instead of PROGNam if you need a replace.

 

[GarouSP]

Is it possible to convert NAM1975 to other boards like PROG TOP - CHA256 ?

 

[pierpa86]

Yes it is, but you need to path M1 driver to make it work with pcm and zmc

 

[GarouSP]

Yes it is, but you need to path M1 driver to make it work with pcm and zmc

Thanks, but I don't know how to patch M1.
V roms from NAM are labeled diferentlly from more recent games, seems to be a messy job, diferent kinds of eprom for V roms