15 Mar
2002
15 Mar
'02
11:46 p.m.
At 08:27 PM 3/15/02 -0800, you wrote:
Machine Language Instructions
Instruction Operation A Address B Address d-Char Comments
Address Code
0378 1 READ A CARD
0379 M 0009 0230 MOVE CHARACTER
0388 M 0029 0250 MOVE CHARACTER
0397 2 WRITE A LINE
0398 / 0378 0299 CLEAR AND BRANCH
And punch a card was OpCode 4.
Op codes could be combined so the OpCode 7 was read/write/punch. You could
make the machine real busy by putting a 7 with a word mark throughout
storage using the switches on the console.