[comp.sys.apple] TML Pascal byte operations

TMPLee@DOCKMASTER.NCSC.MIL (02/03/90)

Does anyone know if the updated TML Pascal handles byte and character
operations better than version 1.50a?  I dissassembled a little of the
code 1.50a generates and even though you have something defined as a
byte or a character it takes up two bytes and uses sixteen bit operands
(despite the fact that the manual says that a variable of type byte is
supposed to only take up one byte, admitting that a character takes up
two).  This includes referencing through a pointer to type byte.  If you
work very hard and define something as an array of packed bytes (e.g.,
var a:packed array [1..1] of byte) you do get the data to take up only
one byte and stores ARE made in 8-bit mode (you see SEP and REP
surrounding them) but data fetches are still 16 bit reads.  The latter
makes it quite a nuisance to do the equivalent of BASIC Peeks on $CXXX
softswitch locations.  (It doesn't help that inline doesn't work right
either.)

TMPLee@dockmaster.ncsc.mil