Have you ever wonder how would Mega Man/Rock Man will looks on ATARI 7800 :question:
So here you are: ;D
This is powerpack on famiclone (not NOAC) with my hand-made 72 to 60 pin converter .
in that moment it was not perfect contact may be.But I couldn't repeat the same situation :crazy:
(http://i54.photobucket.com/albums/g113/IBMDOS/MODS/th_DSC00869_zps4e764f7d.jpg) (http://s54.photobucket.com/user/IBMDOS/media/MODS/DSC00869_zps4e764f7d.jpg.html)
(http://i54.photobucket.com/albums/g113/IBMDOS/MODS/th_DSC00868_zps68eb782b.jpg) (http://s54.photobucket.com/user/IBMDOS/media/MODS/DSC00868_zps68eb782b.jpg.html)
(http://i54.photobucket.com/albums/g113/IBMDOS/MODS/th_DSC00870_zps4495f748.jpg) (http://s54.photobucket.com/user/IBMDOS/media/MODS/DSC00870_zps4495f748.jpg.html)
(http://i54.photobucket.com/albums/g113/IBMDOS/MODS/th_DSC00871_zpsc4e6bb46.jpg) (http://s54.photobucket.com/user/IBMDOS/media/MODS/DSC00871_zpsc4e6bb46.jpg.html)
Seems like cool stuff! I don´t think I fully understand what you´ve created though. Is this a converter that makes Famicom games fit into an ATARI 7800 console?
Quote from: That Guy from Faxanadu on May 29, 2013, 03:11:54 pm
Seems like cool stuff! I don´t think I fully understand what you´ve created though. Is this a converter that makes Famicom games fit into an ATARI 7800 console?
no no, it is just regular 72 to 60 pin convertor, this situation is just a glitch! :D
Ha ha, then I get it! Nice glitch though :)
I come across to this glitch again, this time with original PAL NES console and captured a game-play via capture card :) :gamer:
https://www.youtube.com/watch?v=obuv6yAzSAw
I counter that with my Recca VCS glitch >> https://www.youtube.com/watch?v=Pr5Y3BIM_PA 8)
Quote from: MWK on June 21, 2016, 11:38:49 am
I counter that with my Recca VCS glitch >> https://www.youtube.com/watch?v=Pr5Y3BIM_PA 8)
dude, that was amazing! i wish i would be able to play the same way
there is more :)
https://www.youtube.com/watch?v=CbvqD159RVY
again megaman 2600 glitch ;D
I made more footage from this glitch :o
enjoy ;D :D
https://youtu.be/_jDojks0CaY
Game list:
Super Mario 1
Super Mario 2
Super Mario 3
Contra 1
Exitebike 1
Battle City
Unchained Melody MENU
Good.
:D
So to trigger this glitch on Power Pack Just glue a piece of transparent tape here: (with help by krzy)
https://drive.google.com/open?id=1uWmMxpuXuzS3O606wXDIM9IX_Yzq06bg
for the regular cartridges you have to connect this pin to VCC or GND and isolate it like above from the slot
https://drive.google.com/open?id=1_5BsJ_LuJ3yKOSEYV0NsAQEx7FqLsvvk
More info about this glitch by krzy
All NES graphics (named pattern tables) are stored as 8x8 tiles as described here:
http://wiki.nesdev.com/w/index.php/PPU_pattern_tables
So taking letter X as an example (dot . represents bit 0)
Code:
$0xx0 = 1.....1.
$0xx1 = .1...1..
$0xx2 = ..1.1...
$0xx3 = ...1....
$0xx4 = ..1.1...
$0xx5 = .1...1..
$0xx6 = 1.....1.
$0xx7 = ........
When you short A0 on the ROM side to GND you make PPU fetch from both odd/even ROM graphic address cell return the same value (from even cell). So when PPU tries to fetch from addresses:
$0xx0, $0xx1, $0xx2, $0xx3, $0xx4, $0xx5, $0xx6, $0xx7
it will instead get values from those cells:
$0xx0, $0xx0, $0xx2, $0xx2, $0xx4, $0xx4, $0xx6, $0xx6
And thus the mentioned letter X will look like:
Code:
$0xx0 = 1.....1.
$0xx0 = 1.....1.
$0xx2 = ..1.1...
$0xx2 = ..1.1...
$0xx4 = ..1.1...
$0xx4 = ..1.1...
$0xx6 = 1.....1.
$0xx6 = 1.....1.
Quote from: togemet2 on February 12, 2019, 02:55:54 am
This is really cool! I'm interested to see how Super Mario Bros 3 looks. :o
check my video I posted it a few comments above https://youtu.be/_jDojks0CaY
Maybe if I had a powerpak I would consider performing this modification but definitely not on original carts.
Yeah me neither. I wouldn't like to make a permanent mod to make a glitch occur on purpose.
It haven't be permanent . I can be made with a switch :) :gamer: :crazy: