07:12 <daddy> hi

14:02 <siraben> proteusguy: Moving Forth was singularly the best article series for helping me implement it on Z80

15:39 <veltas> ^

15:40 <veltas> I recently rewrote zenv to use HL as TOS, and to use direct threading, has shrunk code size and speeded it up

15:41 <veltas> I saw a forth used BC as IP, I tried that too and I'm not sure it's worth it, you sacrifice too much trying to mess around with more stack arguments in crucial CODE words

15:42 <veltas> I've got HL as TOS, SP as data stack pointer, IX as return stack pointer, and IY as instruction pointer.

15:44 <veltas> I suppose it's alright if you save shadow registers on interrupts and then you can PUSH HL; EXX at the start of a word to get an old-fasioned register setup without breaking the IP.

16:42 <proteusguy> siraben, yeah it got me going on the 6809 back in 86 too! Timeless stuff. ;-)

18:41 <siraben> veltas: yeah there's just enough registers on the Z80 to make a TOS reg worthwhile

19:53 <veltas> TOS register seems to make no impact, and only save instructions, except for threading code. And it kind of makes sense, after all TOS has to get to a register at some point anyway, and HL is the most versatile 16-bit register.

19:59 <veltas> Needless to say I'd put same emphasis on it as the author of the moving forth articles