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CenTraX
Account closed
Registered: Jan 2002
Posts: 117 |
IFFL System by Taboo
I need this system?? Anybody? Links? |
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HCL
Registered: Feb 2003
Posts: 716 |
Sorry for not being able to express my self clearly, but for a start, can anyone tell what IFFL is short for? It's not InterlacedFileFormatLogo. To me IFFL is simply an archive of many files stuffed (possibly compressed) info one file, like Borderline/Triad(!). So you'll need a special loader to read it.
But as far as i understrand, the question was not how it works, but only if someone has got it (the TabooIFFLStuff). Great, i don't. |
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Graham
Account closed
Registered: Dec 2002
Posts: 990 |
maybe it's a variation from amiga IFF? interleaved file format. |
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iopop
Registered: Dec 2001
Posts: 317 |
Accordning to #c-64 sources iffl is short for "Interleaved Flexible File Loader".
Combined with Grahams suggestion and the basic rule about c64 invetions to have "flexible" included in the name. I think it makes sense.
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White Flame
Registered: Sep 2002
Posts: 136 |
Just use REL files. That's what they're there for. :) |
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cadaver
Registered: Feb 2002
Posts: 1153 |
Ben: a good IFFL system will survive filecopying of the datafile (it's big, but still completely standard), so there can be no direct T/S information of where each file starts, but rather the loader must first "scan" through the whole datafile, starting completely "legally" (T/S from directory) and making note of every file's startpoint T/S/offset as it goes through the chain.
For this, a table of file lengths is required.
And no, REL files are lame :)
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Stryyker
Registered: Dec 2001
Posts: 465 |
Before I understood IFFL (which is easy to understand) I just linked all the files into 1 for a gfx colly and just made it forever stream. Worked. Probably not good for the drive being always active.
somewhere I had some adapted version of level crusher that used standard IO routines to depack needed part. I basically depacked and discared everything until it got to where it needed to be. |
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Case
Registered: Aug 2002
Posts: 138 |
I always thought that IFFL had its own track & sector reference table located at the start of the file. By reference table, i mean specific to the actual IFFL file itself, not the floppy. I have some IFFL source's on a disk somewhere, but never really looked at them as there were some pre-compiled stuff available for use by anyone who wanted them.
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Stryyker
Registered: Dec 2001
Posts: 465 |
I can't see how track/sector table would be useful unless people only disk copied although it could bypass a need for scanning before use. I understand using a table for sizes.
I did stumble across 1 IFFL system where everything was in 1 file. I was very impressed by it - think it may even have some MWS magic in it. Load the 600+ file, it would use some magic to auto run, not sure if it was zeropage or IRQ pointers or something but I enjoyed it. |
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cadaver
Registered: Feb 2002
Posts: 1153 |
Rant & code released. It ended up sucking not that much but approach still with caution. |
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Ben
Account closed
Registered: Feb 2003
Posts: 163 |
Cadaver: I just ended up at your website. I will be looking at some of your 'rants' soon (I am @ work, so no time now..). Some of them look interesting even from the glance.. Keep it up :)
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