Path: utzoo!attcan!uunet!lll-winken!lll-tis!mordor!joyce!ames!ucsd!rutgers!att!lzaz!lzsc!mkg
From: mkg@lzsc.ATT.COM (Marsh Gosnell)
Newsgroups: comp.sys.mac.programmer
Subject: Re: Register saving conventions
Summary: save EVERYTHING when patching traps
Message-ID: <1133@lzsc.ATT.COM>
Date: 1 Aug 88 17:41:50 GMT
References: <664@iraun1.ira.uka.de>
Organization: AT&T ISL Lincroft NJ USA
Lines: 4


When I patch traps I make it a point to save/restore everything (D0-D7/A0-A4).
No telling what assumptions the ROM makes or, worse yet, what assumptions
some other programmer who patches the same trap as you made (or forgot to).
  Marsh Gosnell