Peter Swinkels wrote: ↑Tue Jun 09, 2020 12:56 pm

I did a bit of searching: you should be able to find a copy by typing "helppc abandonware" in Google. Let me know how it turns out, okay?

I have downloaded HelpPC 2.10 and in fact I remember using this very useful tool in the early 90s. Good memories

Well, if I didn't get it wrong and according 8086 timings here it is:

lOOP takes 18 clocks when jumps and 5 clocks when no jumps. Bytes size is 2.

DEC takes 2 clocks and Bytes size is 1.

JNZ takes 16 clocks when jumps and 4 clocks when no jumps. Bytes size is 2.

So, DEC+JNZ takes 18 clocks when jump and 6 clocks when no jump and Bytes size is 3.

But according to the

Cheat Sheet provided by chibi lOOP takes only 17 clocks when jumps and 5 clocks when no jumps.

It seems it's better to use LOOP instead DEC+JNZ. What do you think?