Hi,

> Still does not compile on 16F876A -
> ASM ERROR:
> Symbol not previously defined (wsave), (ssave), (psave).

Do you have DT-Ints in the program? I thought I said:
You can not cut'n'paste this into a program using DT-Ints. Try it stand-alone first and we'll see about DT-ints later - if needed.
> Compile OK on 12F1840, but ASM warning - Found label after column 1. (Generate), Extraneous arguments on the line
That's a warning, have you edited the source in any way? I don't get that here.....

> If any channel duration has same value, these channels won't play.
> Also, playback duration is different each time, it might play 4 or 5 times same duration, then 2 times shorter duration, then again normal.
> It works properly only when value of output timings is first is the shortest, 2nd medium and 3rd - longest. If in reverse, it will only play last, short one.

Are you running the program, by itself, on the 16F877 at 20MHz or are you, despite my warning, trying to run it together with the rest of your program AND DT-INTS?

/Henrik.