I have this. I'll send it to you when I get home.
I'm hoping one of you code jockeys knows a simple program for filling a block of memory on the 9010 - in this case with FFs.
I'm looking for something like:
*Begin at address xxxxh write FFh, **
**
**Increment counter by 1 store, **
**
**Compare counter with yyyyh - if equal goto Finish**
**
**Loop back to Begin**
**
**Finish*
I think I just about wrote the program, but it would take me up to a couple of hours to get it to work (I'm a heck of a lot better on hardware).
Why do I want this? Well, I am finding that the AnyPin device we sell is loaded with 00s, and the early Williams games don't seem to like that, so I want to load them with FFs and see if that works better. A 5101 is only 4 bits wide, so I made a simple adapter that puts a second 5101 in parallel (address and selects) with the original and the four additional data lines (D4 - D7) go to a Glomper clip that fits over a handy ROM to get those connections. Now I can test the 5101 in the game using the standard built in RAM tests.
Thanks!
John :-#)#
--
How to subscribe or unsubscribe from TTL http://seven.pairlist.net/mailman/listinfo/techtoolslist
_______________________________________________
Techtoolslist mailing list
Techtoolslist@flippers.com
https://pairlist7.pair.net/mailman/listinfo/techtoolslist
FTP site is: ftp://ttl.arcadetech.org/TTL/Test_Equipment
Archive site: http://seven.pairlist.net/pipermail/techtoolslist/