Spontaneous numlock

[ab1jx]

I started a post but lost it amongst a zillion open browser tabs.  I put the disassembled code on Pastebin https://pastebin.com/M80Sgxxw  It's over my head, 10,000 lines with no comments or real labels.

There is a Linux CNC bunch, he's in that.  There are controllers I think, but if he's talking to one with a Rock64 or a Pi I think it's over USB because there isn't much else.

The magazines are all old so the electronics are obsolete, but I saw several articles mentioned about making PC boards, some antennas, other things that don't become obsolete.  My idea was to get a year's worth of front covers into one big image so you had like a newsstand view.  The major articles are listed on the fronts.  I was using this and ImageMagick to grab front cover images:

Code:

#!/bin/bash
# extract 1st pages of a batch of pdfs to jpegs as thumbnails
for f in *.pdf; do convert $f[0] $f.jpg; done

That works well enough, it's putting them together in memory under program control and writing them out that I got bogged down on.  Then a couple other projects came along.  But there are about 50 years each of those 2 magazines.  They might be readable with a year's worth of covers in a 1920x1080 image.  4 columns and 3 rows gives about 2500x2500 pixels so they'd need to be scaled down, ImageMagick can handle that in batches too.