Compilers digest Vol. 1 Number 3

[from compilers-request at IMA]


To: compilers
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Aho and Ullman's `dragon book' has been updated, has a new co-author, and
carries a 1986 copyright (?). The new title is, I think, *Compilers:
Design, Principles, and Tools*. The new co-author with Aho and Ullman
is Ravi Sethi.


It has been updated to reflect a number of advances in compiler technology
since the original dragon book.


EDITOR : Could you write up a review of the changes to the original edition
and a review of the book in general since some people have never
heard of the "dragon book"?


--
Karl Kleinpaste


From ima!ism780!ism780c!darryl
From: Darryl Richman <darryl@ism780c.UUCP>
Subject: Re: Compilers digest Vol. 1 Number 2


Has anyone looked at some of the newer, more automated methods of code
generation. I built a small code generator based on some of the ideas by
Graham and Glanville, supporting Unary *, =, +, and Binary -. I built it
for the 68k in about 5 hours. This technique presupposes a linear
intermediate language, which you then parse with, say, a LALR(1) parser,
emitting coe (or not as appropriate) with each reduction. The productions
represent addressing modes and operations.


EDITOR : Darryl, could you post some more notes on Grahm and Glanville's
              : ideas and maybe the code you wrote???)


Oh, BTW, although YACC itself is owned by AT&T, isn't it the case that
the output from yacc owes nothing to them? I believe that you owe no
royalties for the use and distributions of /lib/yaccpar.


EDITOR : Darryl, this has been hashed out before, and as far as I know the
              : parser that yacc cranks out is IN NO WAY owned/operated/controlled
              : by AT&T.


--Darryl Richman, INTERACTIVE Systems Corp.
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