Someone asked earlier about verifying programs before execution. If I were
designing for an application of this sort I guess I'd pay the extra few
dollars for the 17C4x series chips. These have a TABLRD instruction which
can be used to read the program memory for testing.

Hmm, now I think about it I might have an application for one.....

Keith.
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Keith Dowsett         "Variables won't; constants aren't."

E-mail: kdowsett@rpms.ac.uk  or kdowsett@geocities.com

WWW: http://kd.rpms.ac.uk/index.htm
     http://www.geocities.com/CapeCanaveral/Lab/8979