Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
| Message-ID | <4E26274F.1A67AD5D@sonic.net> (permalink) |
|---|---|
| Date | 2011-07-19 16:54 -0800 |
| From | Mark Thorson <nospam@sonic.net> |
| Organization | none |
| Newsgroups | comp.arch |
| Subject | Re: The Indexed Instruction Problem Solved! |
| References | <01eccdb0-149a-4cd4-9fd6-acfadc64029a@glegroupsg2000goo.googlegroups.com> <ecbdfd04-edc7-4133-83fe-8bdf117b86a7@dp9g2000vbb.googlegroups.com> |
Quadibloc wrote: > > On Jul 18, 6:07 pm, MitchAlsup <MitchAl...@aol.com> wrote: > > > Believe it (or not): one customer took serious issue with the Gould (A.K.A S.E.L.) 32/87 executing the NO-OP in the unsed Halfword in zero cycles. They actually wanted the NO-OP executed and take a real execution cycle. For some reason or another this made their Real-time response unpredictable. > > It's a pity you didn't have two possible opcodes for a no-op > instruction. One could have done that, while another would be an > ignored space-filler. Why would you need that? There wasn't a do-nothing encoding of a 1-cycle instruction available? Like mov r0,r0?
Back to comp.arch | Previous | Next — Previous in thread | Next in thread | Find similar
Re: The Indexed Instruction Problem Solved! MitchAlsup <MitchAlsup@aol.com> - 2011-07-18 17:07 -0700
Gould (was:Re: The Indexed Instruction Problem Solved!) Mike Hore <mike_horeREM@OVE.invalid.aapt.net.au> - 2011-07-19 15:39 +1000
Re: The Indexed Instruction Problem Solved! nmm1@cam.ac.uk - 2011-07-19 07:14 +0100
Re: The Indexed Instruction Problem Solved! Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-07-20 11:26 +0200
Re: The Indexed Instruction Problem Solved! Quadibloc <jsavard@ecn.ab.ca> - 2011-07-19 01:00 -0700
Re: The Indexed Instruction Problem Solved! Mark Thorson <nospam@sonic.net> - 2011-07-19 16:54 -0800
Re: The Indexed Instruction Problem Solved! Quadibloc <jsavard@ecn.ab.ca> - 2011-07-19 18:53 -0700
Re: The Indexed Instruction Problem Solved! nmm1@cam.ac.uk - 2011-07-20 07:41 +0100
Re: The Indexed Instruction Problem Solved! Terje Mathisen <"terje.mathisen at tmsw.no"> - 2011-07-20 11:39 +0200
csiph-web