Author: LaTeX (212.234.70.194)
Date: 04-15-2004 14:10
Concretly I would zip the .msa file to make it fit to a 720KB floppy disk.
Then I would tranfert it to my ATARI hard disk (or RAM disk) using the 720KB floppy.
Then I would create a 820KB floppy because this is the size of the .msa file while uncompressed.
Then I would unzip the .msa with STZIP on my hard disk (or faster, RAM disk).
Then I would use the special program (can't remember its name) that transfert .msa file back to floppy. That's all.
I suppose you need the name of the program that put back .msa files onto a floppy. As I can't remember right now, you may have a look with google or whatever. I did a quick search for you and I found this
http://pageperso.aol.fr/ZORG63/index.html
but that is not the one I use.
.msa files are only direct copy of a floppy to a file. So their size depends on the floppy size and format. You will have to deal with floppy figures to determine the appropriate format.
720KB is an easy one :
2 sides, 80 traks per side, 9 sectors per track, 512KB per sector. That is IBM regular.
Sides are 1 or 2.
Tracks are up to 82 (sometime more but drive ability dependents)
Sectors are 9 to 11.
Usualy a sector is 512KB.
So a floppy size is :
[Number of sides] * [Number of tracks per side] * [Number of sectors per track] * [size of a sector] = size in bytes
[size in bytes]/1024 = size in KB which is the size of the .msa file.
Badfully, several figures could fit one size. You will have to try. Remember that .msa file are floppy direct copy, so if the floppy format is not the same as the original one and if the program contained by the .msa file does a direct track access, you may have problems to run this program. In that case, try other figures that give you the same size.
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