Konami's Wai wai World 2 bootleg cartridge from 90s
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Konami's Wai wai World 2 bootleg cartridge from 90s
Wai Wai World 2 Bootleg cartridge
- krzysiobal
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Re: Konami's Wai wai World 2 bootleg cartridge from 90s
Hey, thank you!
DIL40 chip is VRC2 so all that logic is to add missing interrupt functionality and H/V/1scA/1scB mirroring.
IRQ counter register is latched during one write, not split into two 4bit nibbles. Also the mirroring reeg seems to be placed somewhere at $f000-$ffff, so the ROM must be a little modified in comparison to the original.
http://krzysiobal.com/carts/?action=view&id=497
DIL40 chip is VRC2 so all that logic is to add missing interrupt functionality and H/V/1scA/1scB mirroring.
IRQ counter register is latched during one write, not split into two 4bit nibbles. Also the mirroring reeg seems to be placed somewhere at $f000-$ffff, so the ROM must be a little modified in comparison to the original.
http://krzysiobal.com/carts/?action=view&id=497
Last edited by krzysiobal on Mon Feb 20, 2023 3:02 pm, edited 1 time in total.
My website: http://krzysiobal.com | My NES/FC flashcart: http://krzysiocart.com
- jeffythedragonslayer
- Posts: 344
- Joined: Thu Dec 09, 2021 12:29 pm
Re: Konami's Wai wai World 2 bootleg cartridge from 90s
I guess they are concerned driving over violent bumps would unseat the chips?
Re: Konami's Wai wai World 2 bootleg cartridge from 90s
krzysiobal wrote: ↑Sun Feb 19, 2023 11:48 am Hey, thank you!
DIL40 chip is VRC2 so all that logic is to add missing interrupt functionality and H/V/1scA/1scB mirroring.
IRQ counter register is latched during one write, not split into two 4bit nibbles. Also the mirroring reeg seems to be placed somewhere at $f000-$ffff, so the ROM must be a little modified in comparison to the original.
pcb-top-tracks.jpg
http://krzysiobal.com/carts/?action=view&id=497
Nice!! i have few more cartridges that has weird reverse engineered fc games, will be posting it soon...
- krzysiobal
- Posts: 1037
- Joined: Sun Jun 12, 2011 12:06 pm
- Location: Poland
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Re: Konami's Wai wai World 2 bootleg cartridge from 90s
Can you please check two things as I was not sure
1. Is there track going to pin 10? 2. Are pins 8 and 9 not connected to anything at all?
My website: http://krzysiobal.com | My NES/FC flashcart: http://krzysiocart.com
Re: Konami's Wai wai World 2 bootleg cartridge from 90s
Ok sure , i will check it out and update you by tomorrowkrzysiobal wrote: ↑Tue Feb 21, 2023 2:16 amCan you please check two things as I was not sure
1. Is there track going to pin 10?
guess1.jpg
2. Are pins 8 and 9 not connected to anything at all?
guess2.jpg