Found
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Found “Motorway
Hi, I just found "Motorway" from Bubble Bus (Computer Room) on cassette. This version of "Motorway" is not listed in GB20, in fact I can't find any info about this game on the web.
It plays fine and it is a fun game. But i can't save it on floppy. Loading from a cassette is not a problem, it loads as "MOTORWAY*" and I can list it. When i save with SAVE"MOTORWAY*",8 nothing happens. When I save it as SAVE"MOTORWAY",8 it saves fine and I can list it. But when I run the game it cuts out with a "Illegal copy" message.
Is there a way to save this to floppy and get it to work? When I get a working copy I can tranfer it to play the game in Vice.
It plays fine and it is a fun game. But i can't save it on floppy. Loading from a cassette is not a problem, it loads as "MOTORWAY*" and I can list it. When i save with SAVE"MOTORWAY*",8 nothing happens. When I save it as SAVE"MOTORWAY",8 it saves fine and I can list it. But when I run the game it cuts out with a "Illegal copy" message.
Is there a way to save this to floppy and get it to work? When I get a working copy I can tranfer it to play the game in Vice.
I'm not an expert but it probably looks for some code in the tape buffer.
You could try looking for peek reads of that area and rem those out.
Look for the code that prints Illegal copy and you should find a test nearby.
You could try looking for peek reads of that area and rem those out.
Look for the code that prints Illegal copy and you should find a test nearby.
Vic20-Ian
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- Mayhem
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Technically, it would be better if you were able to produce a TAP of the game for archive purposes. The game is already preserved in GB20, well sort of... this appears to be Bubble Bus' licensed version of Nufekop's Dodge Cars, and that already is in GB20. Although having just fired it up, the game might have a different title screen anyhow.
As Ian states, the best way for now might be to hunt where the program checks that it is an illegal copy, and REM that out. Plus I would also appreciate a scan of the inlay at 300dpi
As Ian states, the best way for now might be to hunt where the program checks that it is an illegal copy, and REM that out. Plus I would also appreciate a scan of the inlay at 300dpi
Lie with passion and be forever damned...
- Mayhem
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Re: Found “Motorway
This program can transfer the raw files from the tape to disk: raw-tape-transfer-1.1.prgPeter wrote:Is there a way to save this to floppy and get it to work? When I get a working copy I can tranfer it to play the game in Vice.
It won't be runnable but it is probably sufficient for analyzing it. (Make sure to transfer "headers+files")
Here is a d64 image of Motorway including the copy protection.
Perfect for retro-hackers!
Please let me know how to remove the copy protection.
http://www.mediafire.com/?1bic7j433t3mmy2
Perfect for retro-hackers!
Please let me know how to remove the copy protection.
http://www.mediafire.com/?1bic7j433t3mmy2
- Mayhem
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The check for a certain value in a certain memory location that triggers the "illegal program" message is in line 56. Remove that IF statement (and everything past it on that line) and it works. However it may also need a certain SYS to get the joystick working fine too... okay, added. And bingo.
Enjoy the now working PRG file!
As I said, it is pretty much identical to the Nufekop game, the only difference are the words on the title screen and the actual line numbers.
Enjoy the now working PRG file!
As I said, it is pretty much identical to the Nufekop game, the only difference are the words on the title screen and the actual line numbers.
Lie with passion and be forever damned...
- Mayhem
- High Bidder
- Posts: 3026
- Joined: Mon May 24, 2004 7:03 am
- Website: http://www.mayhem64.co.uk
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Yes it is, Dodge Cars is a my old tape2disk work I've fixed also bad joy moviments when loaded from disk.Mayhem wrote:this appears to be Bubble Bus' licensed version of Nufekop's Dodge Cars
It's present on Mega-Cart too, in the extra section.
A bit late info but better than nothing
Mega-Cart: the cartridge you plug in once and for all.