TQ4HAM: A preview of that DV format post (LLO Archive)

Created 2025-12-11, last modified 2025-12-13. Visibility: public

Part of my archive of Layover Linux Official posts on Tumblr.

2025-11-20

Preview of my next optimization chapter. I'm not surprised that LOW 8 is the winner on x64 CPUs, because there's backwards compatibility for treating a 64bit register as an 8bit number to get the lowest 8 bits cheaply. What surprises me is how close the race was!

On AMD64, I expect HIGH 8 to be the winner (when I eventually support it) thanks to things like Top Byte Ignore, but we'll have to see.

By discontinuing support for 16bit type information, I'll be able to support inline text up to 7 characters instead of 6.