Need Help with i960 simulator

Need Help with i960 simulator

[Jim.Montville]

I'm trying to use the i960 simulator that came with gdb-5.0, and I believe I
have it all configured and built properly (--target=i960-sim-coff), but I
have some fundamental 'newbie' issues:

1. I know that I have to define memory regions to the simulator, but I
haven't a clue how to do this from within gdb. Without memory regions
defined, I can load a i960 coff executable, and specify 'target sim', but if
I run or single step, I get a segmentation fault.

2. I have been somewhat successfull with run.exe which was built when I
built gdb. That's where I learned about the options to i960 sim,
specifically the --regions command line option.

Am I on the wrong track with trying to use the i960 sim from within gdb?
Does i960 sim only exist as a standalone application?

Thanks in advance. Any help that anyone can offer will be appreciated.

Jim Montville
Nokia Networks
jim.montville@nokia.com

Re: Need Help with i960 simulator

[Frank Ch. Eigler]

Jim.Montville@nokia.com writes:

: [...]
: 1. I know that I have to define memory regions to the simulator, but I
: haven't a clue how to do this from within gdb. [...]

It's straightforward, though not obvious: from gdb, use
        (gdb) target sim OPTIONS
e.g.,   (gdb) target sim --memory-region 0x1000,0x5000
to set initialization-time settings like memory mappings, and
        (gdb) sim OPTIONS
for other settings.

: Am I on the wrong track with trying to use the i960 sim from within gdb?

Not at all.


- FChE