Hi Monir,
As Jason mentioned this happens (on all ISAs) because of an unimplemented
instruction. If you look at arch/sparc/isa/decoder.isa you’ll find a line like
FailUnimp::for(). What is missing here is the implementation of the for
instruction. You should be able to find a definition for it in the UltraSPARC
2005 reference manual. With that definition you should be able to write an
implementation which would look something like the surrounding implemented
instructions. I imagine this is floating point logical or so which probably
(untested, don’t expect it to work) looks like: FpBasic::for({{Frd_udw =
Frs1_udw | Frs2_udw;}}); After you have an implementation it generally helps to
write a small test program with those instructions in it and to check if they
do what you expect.
Ali
> On Sep 7, 2016, at 10:02 AM, Jason Lowe-Power <ja...@lowepower.com> wrote:
>
> Hi Monir,
>
> No, I don't have any good suggestions for you. Too bad you're not inside ARM.
> I bet they have something internally ;) (note: I have no knowledge of what
> ARM may or may not be doing internally).
>
> Another (semi-)sarcastic response: It may be less effort to add the RISC-V
> ISA to gem5 than to get SPARC working. That is definitely something the gem5
> community would get excited about! Plus, it seems that the RTL models for
> RISC-V cores are only going to get better, especially compared to SPARC cores.
>
> Sorry I can't be more help.
>
> Jason
>
> On Wed, Sep 7, 2016 at 9:47 AM Zaman, Monir <monir.za...@utdallas.edu
> <mailto:monir.za...@utdallas.edu>> wrote:
> Thanks Jason. You are right, too many times the struggle is with the ISA of
> choice in my case.
>
>
>
> But, I need something which I can model in GEM5 and also have synthesizable
> RTL available to play with. Any idea?
>
>
>
> /Monir
>
>
>
>
>
> _______________________________________________
> gem5-users mailing list
> gem5-users@gem5.org <mailto:gem5-users@gem5.org>
> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
> <http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users>_______________________________________________
> gem5-users mailing list
> gem5-users@gem5.org
> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
_______________________________________________
gem5-users mailing list
gem5-users@gem5.org
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
