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From: ForthNet@willett.pgh.pa.us (ForthNet articles from GEnie)
Newsgroups: comp.lang.forth
Subject: ANS TC Magnet for Interpreter
Message-ID: <2322.UUL1.3#5129@willett.pgh.pa.us>
Date: 10 Feb 91 21:49:53 GMT
Organization: (n.) to be organized.  But that's not important right now.
Lines: 27

Category 10,  Topic 24
Message 18        Sat Feb 09, 1991
B.RODRIGUEZ2 [Brad]          at 13:51 EST
 
> ...when you <BUILDS things, you need to align it.  And, if the word
 > DOES> nothing, the user will have to use ALIGN before @ and ! too.

Actually, that's not true, if the system implementor did things right.  The
last word-aligned system I used automatically ALIGNed before every CREATE. 
This forced the parameter field to an even address (which was required for the
thread of a colon definition). So, DOES> always returned an aligned address,
and the user didn't have to worry about it.

Strings compiled in-line were always padded to an even number of bytes; this
required a small bit of additional logic in the run time code which advances
the IP over the string, but it was invisible to the user.  (In-line byte
parameters were forbidden, no great loss.)

Brad Rodriguez        | brad%candice@maccs.uucp      (God willing)
 B.RODRIGUEZ2 on GEnie | brad%candice@maccs.dcss.mcmaster.ca
        | bradford@maccs.dcss.mcmaster.ca  (archaic)

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