[Cryptech Tech] Interactive mem tool?
Joachim Strömbergson
joachim at secworks.se
Thu Apr 30 07:28:27 UTC 2015
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Aloha!
One thing I found myself yearning for when working with cryptech and the
novena is a good old machine code monitor. Not really a full blown one,
but just be able to dump memory regions and write words.
The exact purpose would of course be able to talk interactively to the
cores in the FPGA. For example dump a memory area to see that I get the
expected core name and version, write to a control register or read from
a status register.
It should be fairly easy to implement I think. Esp. if we only want to
do basically to types of commands:
> r 0x11223344 - 0x11224455
0x11223344: 0x00000000 0x55aa55aa 0x00000000 0xffffffff
...
> w 0x11223344 0xdeadbeef
0x11223344: 0xdeadbeef
That is be able to dump a range (one to whatever num words). And the
write a single word to a given address. The tool might read back the
result to show the value after write to the specified address.
I've searched and asked around for such a tool but so far turned up
nothing really useful. Have you seen or have such a tool?
- --
Med vänlig hälsning, Yours
Joachim Strömbergson - Alltid i harmonisk svängning.
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Joachim Strömbergson Secworks AB joachim at secworks.se
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