Scolling glitches on repro

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dude3585
Posts: 39
Joined: Mon Sep 05, 2016 3:33 pm
Location: US

Scolling glitches on repro

Post by dude3585 » Thu Oct 20, 2016 8:48 pm

Ive made a repro of Jason vs Freddy. Cool Friday the 13th hack.http://bootgod.dyndns.org:7777/profile.php?id=176 Ive made sure the mirroring is correct and checked all traces. mirroring set to Vertical. Everything looks fine with the cart and solder. Used two M27C512 eproms(x2 prg, chr). Q Bert as the donor.http://bootgod.dyndns.org:7777/profile.php?id=110
The game plays fine but one the left and right of the screen its glitching out. Ill share video with my phone in a few. Easy than explain it. Any ideas please help. Thanks.

Video soon:

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getafixx
Posts: 362
Joined: Tue Dec 04, 2012 3:28 pm
Location: Canada

Re: Scolling glitches on repro

Post by getafixx » Thu Oct 20, 2016 8:57 pm

Did you jumper the H pads?

IIRC the way Nintendo did it is a bit backwards from what you'd think. H is soldered closed for Vertical mirror, and V for Horizontal.

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dude3585
Posts: 39
Joined: Mon Sep 05, 2016 3:33 pm
Location: US

Re: Scolling glitches on repro

Post by dude3585 » Thu Oct 20, 2016 9:51 pm

That is the issue! Thanks. Rookie mistake again:p

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