In message <iZIQCuBZKsRHFwr$@pilling.demon.co.uk>, David Pilling <flist@xxxxxxxxxxxxxxxxxxx> writes
The ram transfer code in OP has been making assumptions about the behaviour of other programs which are not justified by the Acorn specification of the protocol.
It's a bug. -- David Pilling email: david@xxxxxxxxxxxxxxxxxxx web: http://www.davidpilling.net post: David Pilling P.O. Box 22 Thornton Cleveleys Blackpool. FY5 1LR UK fax: +44(0)870-0520-941