Re: berkeley yacc on DOS

moss@cs.umass.edu (Eliot Moss)
Tue, 21 Jul 1992 13:25:58 GMT

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Newsgroups: comp.compilers
From: moss@cs.umass.edu (Eliot Moss)
Organization: Dept of Comp and Info Sci, Univ of Mass (Amherst)
Date: Tue, 21 Jul 1992 13:25:58 GMT
References: 92-07-024 92-07-063
Keywords: yacc, MSDOS

Jim pointed out problems porting yacc to DOS because of 16 bit integers,
limits of 64K bytes in malloc, etc. I don't know exactly when we should
declare pre-386 machines dead, but when we can, we can use 32 bit flat
addressing models for porting such programs, as has been done for GNU
emacs, gcc, bison, TeX/LaTeX, dvips, ghostscript, etc. Some of these have
non-386 versions, but some notably do not, and the 386 versions are
generally faster and offer more capacity since they breakthe 640K bytes
barrier. Anyway, if people want a yacc for DOS and they have 386 or 486
machines, I suggest bison.
--
J. Eliot B. Moss, Associate Professor
Department of Computer Science
Lederle Graduate Research Center
University of Massachusetts
Amherst, MA 01003
(413) 545-4206, 545-1249 (fax); Moss@cs.umass.edu
--

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