one liner

ONE LINER: Vaporshow

Submitted by S.Elliott on April 25, 2026 - 3:16pm
Did you ever want to test whether there are any active bits at an unknown address or memory-mapped-IO port?  This one-liner uses vaporlock to distinguish active bits vs floating bits on the Apple data bus.
Tags: 
hardware
vaporlock
troubleshooting
one liner

ONE LINER: Jitterbox cursor

Submitted by S.Elliott on April 25, 2026 - 3:12pm
This precisely-timed machine code tricks a 2513 character generator into displaying a dancing-box at the current cursor position, despite the fact that the character generator contains only 64 character shapes -- none of which is a box-shape!
Tags: 
vaporlock
one liner
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