Date   : Sat, 26 May 1984 05:12:00 MDT (Sat)
From   : Keith Petersen <W8SDZ@Simtel20.ARPA>
Subject: Radio Shack overlays for MEX

Take a look at M7R2-2.ASM.  It fixes the overlay to do baud rate
selection using the P&T system calls.  I don't think we should rename
any of the M7 overlays to MXO's until they are MEXized.  They work
fine with MEX as-is.  The MEXized versions don't rely on the JMPs
inside the user area for InlinePrint and InlineCompare.  Instead, they
use MEX system calls.  This frees up the entire user area, with the
except of the option bytes, so that you can have room to add other
features.