On Thu, Feb 24, 2005 at 08:02:29AM -0700, Ronald G. Minnich wrote:
On Thu, 24 Feb 2005 sherlock@vsnl.com wrote:
Any pointers? my mail archive does not throw up aything.
it's complex. You have to compile the emulator with romcc, and then romcc uses the standard bios as the target. It would be a heroic hack!
But, at the end, we would have the ability to run the fuctory BIOS from power-on under emulation and work out all the chip secrets.
I think a two computer solution might be easier. If one can get early serial on the target machine, then a small romcc program could read commands from the serial port, execute them, and transmit back the results. (I think I even saw an email from someone that did this in pure assembler.)
Then, a specially modified emulator could run the original bios on a second machine, forwarding memory reads/writes and io reads/writes through the serial port to the target machine.
Thoughts? -Kevin