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View topic - Sms Snail Maze extracted from bios 1.3 with logo
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Sms Snail Maze extracted from bios 1.3 with logo
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siriokds
Joined: 10 Dec 2009
Posts: 117
Sms Snail Maze extracted from bios 1.3 with logo
Posted: Fri Apr 12, 2024 7:52 pm
Just simple stuff.
Extracted the game from the bios 1.3 source code, removed unnecessary stuff, added a compressor + compressed simple logo. Everything packaged as an 8kb SMS rom.
Enjoy.
SnailMaze.zip
(6.35 KB)
8BitBoy
Joined: 15 Aug 2019
Posts: 265
Location: Lancashire UK
Posted: Fri Apr 12, 2024 10:00 pm
Nice one 👍
badcomputer
Joined: 19 Oct 2023
Posts: 162
Posted: Sat Apr 13, 2024 8:53 am
Great job!
Here's the mockup I made so it doesn't get lost in discord. If you need tiles or other stuff (such as SG version) let me know.
SnailMaze-v1.png
(5 KB)
Shion
Joined: 30 Dec 2008
Posts: 28
Location: Naples,Italy
Posted: Wed Apr 17, 2024 9:01 pm
Nice work. I've tested this rom with emulicios emu. With built in bios and random value of ram i have this screen with garbled graphic on the right.
With value of 00 of initialized ram the garbage goes away.
Fixing the rom checksum and starting it from an european bios the garbage goes away with any value of the ram.
I think that the problem can be solved initializing ram to 00 at the start.
EDIT: Never mind. I fixed myself and added correct crc. Now the rom starts with any bios and with the correct behaviour.
Snail Maze.png
(1.85 KB)
Snail Maze.zip
(6.36 KB)
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