MANUAL FOR RWSHEILA (6502 Machine code)

This file describes the program RWSHEILA which should speed up hardware 
accessing from the 2nd processor and from the IO processor itself via the
approved OSbyte call mechanism.
The manual is (C)1998 SPROW and software is (C)1997 SPROW

INSTRUCTIONS-
At any command line prompt,eg.the BASIC command prompt '>' type *RWSHEILA

The program will then install itself into page &C00 (the CHR$ defn buffer on 
the BBC and Electron,or Econet workspace on the Master) where it will wait
for any *FX151 (write to Sheila) attempts either from the 2nd processor or
called from the IO processor.

Because the OS doesn't have to spend time decoding the osbyte number and
jumping to the relevent section of the OS,there should be a slight speed
increase for that osbyte.

NB.This patch MUST be run in the IO processor,so it's filestamp is &FFFF0C00

KNOWN PROBLEMS/FUTURE ENHANCEMENTS-
No known problems

HISTORY-
V1.00 First release version,in response to a question about the Tube OS