ADFFS 2.85

Floppy Disc Controller emulator and virtual IOC/IOMD/ARM JIT for modern RISC OS machines
wmd
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Re: ADFFS 2.85

Post by wmd »

JonAbbott wrote: Thu Jan 23, 2025 10:50 pm I did this:

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FOR A%=&10000 TO &10100:?A%=0:NEXT
*SAVE ADFS::0.$.4 10000+BE
*SAVE ADFS::0.$.5 10000+BE
Tried using the two files generated from this and scores are still not being saved after Ctrl+Shift+F1. Double-checked that the JFD is not write-protected, and it is not.
JonAbbott
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Re: ADFFS 2.85

Post by JonAbbott »

wmd wrote: Thu Jan 23, 2025 11:11 pm Your youtube videos of this compilation have my name in the score tables.
Well, at least that explains why we’re seeing the same bit rot that’s causing the blank screen in Zarkon Invasion.

I can’t explain how I managed to base my image on the floppy you have though, as it was imaged around 14 years ago when the project first started. I’m now wondering if I’ve somehow managed to mix up which floppy image I’ve used for testing, so will go back and check the source files.

EDIT: I've figured out what's happened. I was sent an APD in 2012 which I used as a reference, its the APD you mentioned above taken from your original floppy. The original floppy was then sold on eBay. The winner imaged it in 2015 and sent me a JFD along with scans etc...so I've ended up with multiple copies of your original from two sources.
wmd
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Joined: Thu Feb 04, 2021 1:02 am

Re: ADFFS 2.85

Post by wmd »

So it's definitely bit rot then? If so, then it's very fortunate that non of those sections of the disc have game data on them. Did you fix those bad sections? If so would you mind emailing me the fixed image please.
JonAbbott
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Re: ADFFS 2.85

Post by JonAbbott »

wmd wrote: Fri Jan 24, 2025 2:39 pm So it's definitely bit rot then? If so, then it's very fortunate that non of those sections of the disc have game data on them. Did you fix those bad sections?
I can't guarantee that no game data is corrupt given how widespread the disc corruption is. I've certainly not altered the floppy image, just fixed the obvious bit rot in the loader code via the boot script.
JonAbbott
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Re: ADFFS 2.85

Post by JonAbbott »

wmd wrote: Wed Jan 22, 2025 7:46 pm
JonAbbott wrote: Wed Jan 22, 2025 7:38 pmSome games just can't be run from HD, so there's no option but mount and boot the floppy - as in this case.
That's a shame, as high score saving is pretty important in this particular case.
Auto flush is now implemented in ADFFS 2.86 if you'd like to get it a try...follow up on the ADFFS 2.86 public beta thread instead of here please.
wmd
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Joined: Thu Feb 04, 2021 1:02 am

Re: ADFFS 2.85

Post by wmd »

Great, I'll check it out now.
wmd
Posts: 182
Joined: Thu Feb 04, 2021 1:02 am

Re: ADFFS 2.85

Post by wmd »

I am trying to create JFDs for Saloon Cars Deluxe. However, when it starts to compress disc 1, I get the error:

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Internal error: address exception at &03873B74
There's no sign on the packaging that this is the Strong ARM version. I selected the 2nd one in the list "Saloon Cars Deluxe (1991)". The version I have has "Saloon Cars Deluxe" on the box, and comes with 3 discs.
JonAbbott
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Re: ADFFS 2.85

Post by JonAbbott »

wmd wrote: Thu Jan 30, 2025 5:46 pm I am trying to create JFDs for Saloon Cars Deluxe. However, when it starts to compress disc 1, I get the error:

Code: Select all

Internal error: address exception at &03873B74
Is this with ADFFS 2.85 or 2.86 beta as I've modified the imager?
wmd
Posts: 182
Joined: Thu Feb 04, 2021 1:02 am

Re: ADFFS 2.85

Post by wmd »

I went back to 2.85 before attempting to image the discs.
JonAbbott
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Joined: Thu Apr 11, 2013 12:13 pm
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Re: ADFFS 2.85

Post by JonAbbott »

wmd wrote: Thu Jan 30, 2025 8:45 pm I went back to 2.85 before attempting to image the discs.
Thanks, I've managed to reproduce the Abort so will investigate.
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