From: Adam Krolnik (adamk@cyrix.com)
Date: Thu Sep 25 1997 - 02:23:23 PDT
A couple of questions regarding signed arithmetic.
1. What are the values of this register? 0 and 1, or 0 and -1?
reg signed a;
It says "signed" so shouldn't it be 0 and -1?
<p>2. If I take a bit select, part select or concatenation, how can I
make it signed? Is this what the $signed() operator is for?
3. How does one control sign extension? If I get it automatically, what can
I do to not get sign extension.
4. Arithmetic shift left seems redundant, what is the need?
<p> Adam Krolnik
Verification Engineer
Cyrix, Corp.
Richardson TX. 75083
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