Hello.
I just subscribed to this list because I got my hands on an MMD-1. My teacher in digital
tech was going to throw it away but I managed to stop him. He had already gotten rid of
the instruction book. My problem is that I've never programmed anything like this
before, and I'm having a hard time understanding anything of it. I have read a few
threads in this list about the MMD-1, but they didn't help much. Let's say I want
to put a number in one of the ports, how do I do that?
address data mnemonic comment
------- ----------- --------
--------------------------------------
004 000 076 123 MVI A<-123 ; load 123 into A
004 002 323 000 OUT 0 ; write it to port 0
004 004 166 HALT
(code from
http://www.cs.unc.edu/~yakowenk/classiccmp/mmd2/programs/setPorts.html, so
it's really for the MMD-2 but I think they are quite alike)
Now that would put the octal number 123 in port 0, right?
How do I enter this into the MMD-1?
I've got an octal keypad plus the letters "H,L,G,S,R,A,B,C"... Anyone who
knows exactly what they do?
/Karl Bernst?l