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Date: Thu, 27 Sep 2012 06:42:13 -0700 (PDT)
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Subject: MIPS/MFLOPS and the Transputer
From: "Mike B." <michael_brues...@yahoo.com>
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During a transputer performance measurement meditation session, I
found some oblique points which I want to share with you.

MIPS =3D Million Instructions Per Second.

On the transputer, not every instruction is really an fully-fledged
instruction. It would be pointless to count the pfix/nfix instruction.
Every =93operate=94 instruction itself is worthy of being counted except
one =96 the =93fpuentry=94 instruction (and therefor all fpu* mnemonics).

MFLOPS =3D Million FLoating-point Operations Per Second

For me - beyond all question are the following instructions:

  fpadd, fpsub, fpmul, fpdiv
  fpusqrtfirst, fpremfirst
  fpumulby2, fpudivby2
  fpuexpinc32,fpuexpdec32
  fpldnladdsn, fpldnladddb
  fpldnlmulsn, fpldnlmuldb

I=92m unsure about the comparison. Is this really an operation?

  fpuabs, fpgt, fpeq, fpordered

Outside are all load/store and conversion functions, even if they are
far from easy and fast.

Comments are welcome!

-Mike