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Differences for revision 1.4 from 1.3


--- /pcc_history.mdwn	2007/09/27 19:00:32	1.3
+++ /pcc_history.mdwn	2007/09/28 00:07:14	1.4
@@ -1,10 +1,12 @@
 The compiler is based on the original Portable C Compiler by Stephen C. Johnson, written in the late 70's. Even though much of the compiler has been rewritten, some of the basics still remain.
 
+PCC debuted in Unix Version 7 and replaced the DMR compiler (Dennis Ritchie's original C compiler) in both System V and the BSD 4.x releases.
+
+Some history about pcc is in the [A History of UNIX before Berkeley: UNIX Evolution: 1975-1984](http://www.darwinsys.com/history/hist.html) and in the [Evolution of C](http://www.faqs.org/docs/artu/c_evolution.html).
+
 A copy of S. C. Johnson's and Donn Seeley's 1987 ``A Tour Through the Portable C Compiler'' is available in [HTML](http://wolfram.schneider.org/bsd/7thEdManVol2/porttour/porttour.html) and
 [Postscript](ftp://226.net120.skekraft.net/pcc/porttour.ps). (For current pcc internal documentation, see the [[internals]] wiki page.)
 
-Some history about pcc is in the [A History of UNIX before Berkeley: UNIX Evolution: 1975-1984](http://www.darwinsys.com/history/hist.html).
-
 About 50% of the frontend code and 80% of the backend code has been rewritten. Most stuff is written by Anders Magnusson, with the exception of the data-flow analysis part and the SSA conversion code which is written by Peter A Jonsson, and the Mips port that were written as part of a project by undergraduate students at LTU.
 
 It was publicly announced to the NetBSD community on September 14, 2007. Shortly later it was

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