Ruud@Baltissen.org writes: > Some instructions even accessed the memory at $1800 and $1C00. That > would make sense if I was dealing with a 1541, but not in a > C64. Unless it is code that is meant to be sent to a 1541. But why, > having its own SpeedDos ROM as well? I compared this ROM to other > ones I had. Although different, they had these weird instructions as > well. What to make of that? SpeedDOS does indeed send code from the C64 to the 1541 for loading (and probably saving) when it detects a parallel handshake. That code even jumps directly to modified parts of the SpeedDOS-1541-ROM, so mixing different C64/1541 SpeedDOS-ROMs can result in combinations where LOAD crashes the drive. -ik Message was sent through the cbm-hackers mailing listReceived on 2015-02-07 01:00:04
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