Re: autodecrement PC

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Article #1663

#1663

From: Robert E. Novak
Date: Wed, 26 Jul 1989 18:11

17 lines
1116 bytes

I missed the start of this.  I presume that someone has already posted the
infamous:

	ROL -(PC)

Which turned the ROL instruction into:

	MOV RO, R1

Assuming memory serves correctly.  This was a favorite obfuscation that we
stuck in assembler code  (I think it was A. I. Stocks that first pointed
this out to me in Urbana).

-- 
Robert E. Novak                                     MIPS Computer Systems, Inc.
{ames,decwrl,pyramid}!mips!rnovak      928 E. Arques Ave.  Sunnyvale, CA  94086
rnovak@abbott.mips.COM (rnovak%mips.COM@ames.arc.nasa.gov)       +1 408 991-0402

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!jarvis.csri.toronto.edu!rutgers!apple!bionet!ames!vsi1!wyse!mips!rnovak
From: rnovak@mips.COM (Robert E. Novak)
Newsgroups: comp.arch
Subject: Re: autodecrement PC
Message-ID: <24108@abbott.mips.COM>
Date: 26 Jul 89 18:11:56 GMT
References: <3256@wpi.wpi.edu> <EGDORF.89Jul21195924@zaphod.lanl.gov> <443@anasaz.UUCP> <BRUCE.89Jul23155646@heather.pooh.com> <3893@phri.UUCP> <958@m3.mfci.UUCP>
Reply-To: rnovak@mips.COM (Robert E. Novak)
Organization: MIPS Computer Systems, Sunnyvale, CA
Lines: 17

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