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Re: [f-cpu] Supported Instructions

On Fri, Apr 05, 2002 at 11:30:24PM +0200, Yann Guidon wrote:
> > - "something" (a register?) point on the faulty instruction.
> in the CMB (the instruction pointer).
> After the instruction is "simulated", the IP must be incremented...

How do we find the address of the CMB?
Remember that we're in another context now.

> > - The handler try to extract the register number to emulate the instruction
> use the IP from the CMB, fetch the 4-byte data and extract the fields.
> >  - by using some others registers ?
> these are in the new "task". SRB is certainly triggered.
> >  - We need to save some of them (slow?)
> why "slow" ?
> >  - How to access indirectly the register set ? (to extract data)
> fetch them from the CMB.

That will become difficult if the SRB is still in progress. You don't
know if that particular register value has already been written to the

 Michael "Tired" Riepe <Michael.Riepe@stud.uni-hannover.de>
 "All I wanna do is have a little fun before I die"
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