Larry Stewart wrote: > Or it could be FM, which has a transition in the middle of a bit cell > for 1’s and a transition at the end of a bit cell for a 0 if it is > followed by another 0.
Thank you, this is probably it. I extracted the encoding algorithm from the assembly code and it does handle 00 specially. _______________________________________________ Simh mailing list Simh@trailing-edge.com http://mailman.trailing-edge.com/mailman/listinfo/simh