Month: February 2025

Here is a video discussion of the eleven load operations that were given a visual depiction last week. If you are not familiar with all of these loads, the video can help you quickly master these and give you a way to remember them easily.

Here is a video I made about the importance of “green cards”. Like all advice, it’s worth about what you pay for it 🙂 If you are new to assembler, you might learn something interesting.

This week, instead of an article about one instruction, I give you a visual depiction of the eleven load operations for an IBM z16. There are no words, so it’s something like a puzzle. You have to parse the diagrams to glean the information. Much is left out of course. No talk of addressing techniques, just the results of executing each instruction is depicted. But you may learn a new instruction or reinforce what you already know. Enjoy—it helped me. View the diagrams here. Let me know if you would like a video about this.

Thanks so much, IBM! I am delighted.

I’ve updated the article about LAY to include how to decrement a register with LAY. If you haven’t seen this before, it’s worth a look. Read about LAY here.