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From: horst@techfak.uni-bielefeld.de
Newsgroups: comp.compilers,comp.arch
Subject: SPARC tagged data
Keywords: architecture, SPARC
Message-ID: <9104291542.AA11213@flora.techfak.uni-bielefeld.de>
Date: 30 Apr 91 03:38:52 GMT
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Reply-To: horst@techfak.uni-bielefeld.de
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Does anyone know what TAGGED DATA instructions are useful for and how to
use them? Tagged data is assumed to be 30 bits wide followed by trwo bits
set to zero. The SPARC allows add and subtract instructions on tagged
data.

HH
[Most likely it's for immediate integers in a Lisp-like system that uses
tagged pointers, but I hope someone who actually knows will tell us. -John]
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