So here’s where I’m at: I know my memory read and write routines are good. I calculate a checksum as I’m writing the data, and on the output of that data to the PC, I also calculate the checksum. ...
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simplified ISR
It looks as if I spoke too soon. I’m still having reading problems. The data used to be forced into an MFM mold, but all that’s done in some cases, is to further corrupt the corrupt data. I rewrote my ISR...
correctly reading an entire track reliably from PC drive
OK Great news. As I stumbled on in the last post: I’ve fixed my reading issues, and I’m now reliably reading, in one shot, an entire amiga track from the unmodified standard PC drive!! When seeing double...
interesting results
OK, I’ve applied the “double 1’s” fix that I talked about earlier today. This definitely helped things. I think my results are quite possibly the best I’ve seen them yet. Now, my SX...
even first or odd?
Despite having a couple different official sources, both AFR.c and floppy.c from the fellow amiga emulator says that the even bits come before the odd bits. This is true in the sector header decoding as well as in the...
example files
I wanted to put up some example files. Note that a preceding “D” for dump and two delimiting 0xFF’s might exist in these files. Also an ending 0xFF 0xFF might exist. So two bad files below have exactly...
