And here’s a landscape one-page PDF of all the Glk opcodes with their hex values. (It’s the final page of the document above but I figured I’d provide it alone, too; it could hold some interest as a reference outside the context of the whole document.)
I did know about the existing PDF and I probably should have mentioned above that there actually was a reason I went to the bother of making another: I wanted to print it out on a black & white printer, so I preferred to go without the colored text.