Re: NEED HELP: Program Recovery from PROMs

[Cyrus Roton <croton@ridgecrest.ca.us>]

On 19 Jul 1995, Laurel Fensterer wrote:

> 
> 	Once upon a time, long long ago (1985) a program was coded, compiled, 
> and put into 4 PROMs, all on an Apple IIe.  I had absolutely nothing to do with
> this, so that is as indepth as I can get on that part.  Since that time, the 
> code has been 'lost', so that all that remains is the four PROMs.  Now, is it 
> possible to download or read that program out of the PROMs?  How would I go 
> about doing this?  What format would I get it in?  Have I supplied enough info?
> HELP!  Any advice or tips would be appreciated.
> 
Where are the PROMS located in the IIe?? It might be possible to access 
them from the "monitor" routine built into the Apple. That can give you 
an assembly language printout which could be useful (if you are skilled 
enough to use it).

Another way might be to send me the PROMS and (depending upon the type of 
PROM) I could use my PROM programmer card to read them and to save the 
matrix on a disk. You might then load the matrix into your Apple and use 
one of the assemblers which offers dis-assembly features.

The easy part is extracting the data from the PROM. The hard part is 
interpreting it. Unless one has a good idea of what that code was 
supposed to do, the interpretation could take far more time than it is 
worth.

If all you want to do is reproduce the data into more PROMs, I might 
handle that for you (if the data is not copywrited).

Cyrus Roton   croton@ridgecrest.ca.us
Ridgecrest Apple User Group