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Talk:Accumulator (computing)

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This is an old revision of this page, as edited by Cyberbot II (talk | contribs) at 10:25, 25 August 2015 (Notification of altered sources needing review (Peachy 2.0 (alpha 8))). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

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Massive rework needed

This is bad, really bad.

First of all this article suggests an accumulator processors has one accumulator (which 6502 did). However numerous examples are contrary to this such as

  • 6809 has accumulators A and B that could be concatenated to D, 6308 had even more
  • 56300 has again 2 large accumulators of extended width
  • 96000 also has 2 accumulators that are even wider

With 2 accumulators you need only a single bit in the instruction to indicate what accumulator is to be used. 68000 has a lot of data registers, and those are not called accumulators, so the article should state clearly where the limit is. Seems the limit is around 4 (ARM Piccolo)

SWEET16 has one accumulator and 15 other registers, a wealth closer to 68000.

Next is the link to accumulator-based architecture which goes to PDP-8, specifically the section Legacy_of_accumulator-based_architectures which no longer exists. Is there any reason why this has to be split up?

Also it seems a bit lacking that the multiply-and-accumulate is not mentioned.

All in all an article in need of an overhaul. --22:47, 22 February 2009 (UTC) Amended --21:30, 23 February 2009 (UTC)

Hopefully such an overhaul will also disambiguate further, since the term "accumulator" in programming applies to a variable in which values are accumulated... 63.249.90.205 (talk) 00:55, 25 June 2010 (UTC)[reply]

Hello fellow Wikipedians,

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When you have finished reviewing my changes, please set the —cyberbot IITalk to my owner:Online 10:25, 25 August 2015 (UTC)[reply]

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