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Article #1908

Re: two mem-cycles for Peek ???

#1908
From: Andy Rabagliati
Date: Tue, 26 Jan 1993 16:16
20 lines
1076 bytes
In article <1993Jan22.140715.26743@fokus.gmd.de> jet@fokus.gmd.de (J. Tiemann) writes:
>Hi,
>
>Every 'Peek' occured with two memory cycles on
>the specific address ...
>
>Why use our 'Peek' two memory cycles?
>

Peek /poke was originally put into the Transputer for diagnostic
purposes only.

If you peek an address that is non-word-aligned, the transputer would
have to do two memory accesses. Maybe the microcode always does two
accesses, to simplicate and add lightness.

Cheers,    Andy.
-- 
Amendment 2 information newsgroup co.politics.amend2.info - mailing list also.
andyr@wizzy.com          W.Z.I. Consulting (719)635-6099               pgp-2.1
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From: andyr@wizzy.com (Andy Rabagliati)
Subject: Re: two mem-cycles for Peek ???
Message-ID: <C1GyJE.CEL@wizzy.com>
Organization: W.Z.I.
References: <1993Jan22.140715.26743@fokus.gmd.de>
Date: Tue, 26 Jan 1993 16:16:26 GMT
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