Altair kit up and running.

[Geoff Harrison]

Originally Posted by Grant Stockly

That is GREAT work Geoff! How long did it take you to do that one?

Not too long, less than a day. It helped that I had previously done the same thing to the 2nd stage tape loader and about half of the MBL is taken directly from that.

Originally Posted by marty

I have the program Hand Dissassembled.. And am wondering if I could get the link for the Hex or Octal listing , to compare it with.

Sorry, Marty, I haven't had my coffee yet and I don't quite follow that. If you need the original hex dump that I used that's in groups.yahoo.com/group/altaircomputerclub under Files->EPROMs. You may have to join the group to access the Files section if you're not already a member. It's worth joining anyway even if you don't want access to that file.

What are you disassembling? If you need me to assemble MBL for a particular address, I'll be glad to do that and send you the resulting binary.

Geoff.

[marty]

Hi Geoff;
I used the wrong word, that can happen late at night, when up and still half asleep, and trying to get back to sleep, by doing something for a short time. I assembled it by hand. I don't have an assembler for the 8080 except for listings for some of my machines. I have one which I like for my Digital Group machine, which I would like to put on my Altair, but I also would have to also transfer the whole operating system, which I want to do, (but would need to transfer the I/O from Digital Group to Altair I/O) but don't have enough experience to do so with 8080 op code , yet. The operating system is called ICOSE and was written for the Digital Group Machine, but not by them. I also have two assemblers for the 8080 by Scelbi. (I Think)
THANK YOU Marty

[marty]

Hi to all;
When assembling the circuit boards, I would recemend going from short height to higher, in other words I would put in the jumpers, then caps , then the resistors, then the sockets and so forth. not as the manual shows the other way around. they are easier to put in and solder that way also....
good luck to all... Thanks Marty