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Re: Op-codes in CompiledFunction

  • To: mathgroup at
  • Subject: [mg55849] Re: Op-codes in CompiledFunction
  • From: Oliver Ruebenkoenig <ruebenko at>
  • Date: Fri, 8 Apr 2005 01:36:21 -0400 (EDT)
  • References: <d302pt$hoe$>
  • Sender: owner-wri-mathgroup at

Ciao Stefano,

how are you?

> Are the op-codes used in CompiledFunction documented?

not that i know.

> The reason I ask is that I'm trying to debug a compiled function that 
> generates the message CompiledFunction::cfn "Numerical error encountered 
> at instruction 23; proceeding with uncompiled evaluation".
> Looking inside CompiledFunction, I see that instruction 23 corresponds 
> to {24, 4, 3, 4}, but I have no idea to what it actually means.

try looking at:

and read the *.m file. that _might_ help you. this an old package, but 
still you may get an idea of what is happening. i think the reason why 
this is undocumented is that WRI would like to maintain the ability to 
change the internal code as they deem necessary.

i am sure you know:

or this is another small source of information:

i do not know how close mathematica is to the wizard book, but it is 
worth a try:

hope that helps,
regards from freiburg,


Oliver Ruebenkoenig, <ruebenko at>
   Phone: ++49 +761 203 7385

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