Re: cgen, GNU gdb/sim, and full system simulation

["Frank Ch. Eigler" <fche at redhat dot com>]

Hi, Peter -

> Ok.  But we're primarily doing this for GDB, and I suppose gdb can't
> use sid, is that right?

gdb can use sid (via the remote protocol).  Several gdb/toolchain
ports have used sid as the execution backend for e.g. testsuites.

> [...]
> > To me, the more interesting question would be the choice to model
> > virtual memory as a separate component between the CPU and the memory
> > and I/O buses (which would suite sid's modeling very well), vs
> > something purely internal to the CPU model.
> 
> Yeah, I was hoping I could just define a memory in the .cpu file with
> define-hardware and have custom get and set methods, but it looks like
> that won't work :)

Yeah, cgen by itself is not well-suited for modeling such aspects of
the microarchitecture.

- FChE