2 Jun
2007
2 Jun
'07
10:54 a.m.
"Alexandre Souza" wrote:
Dear friends
I'm working into some 68301 (68000 for embbedded applications)
old-equipment stuff. I'm completely lost into everything, I cannot even
decompile/simulate the code on PC. Maybe some good and candid soul would
lend a hand at least to get me started? I need only to do a very small mod
into the program, but first need to understand how it works.
It depends on what you've got, but you might try finding a gcc cross
compile toolchain, for say linux (or even cygwin) and then using
the "objdump -D" program.
You can get it to disassemble from an unformatted binary file... that
is sometimes useful if all you have is roms.
I think gdb has a 68k emulator, but if not there are many around to
choose from. You should be able to quickly whip up something to sim
the code once you've figured out the basic structure, i.e. where it
boots form and where it expects ram, etc...
just a thought. i'm big on simulation.
There may be other tools for win32 I don't know about. I'm most
comfortable with linux/unix & gcc.
You can certainly build 68k code with gcc. I did it for years.
-brad