pic16F876 and stack overflow

[Mark M]

Hi,
CCS produces following header in the .LST file:

CCS PCM C Compiler, Version 2.732, 2680

Filename: D:\DEVELOP\PIC\PICC\DONSA4\DONSA4.LST

ROM used: 6821 (83%)
Largest free fragment is 778
RAM used: 75 (20%) at main() level
207 (56%) worst case
Stack: 8 worst case (4 in main + 4 for interrupts)

Here is my question. Is the interrupt call itself counted as 1 extra stack depth and not included in the "8 worse case" count?

Puzzled

[Haplo]

The interrupt has already been counted, although your compiler is pretty old and it might have been different in the old days.
Here is what I got in the .LST file when I compiled one of my codes without any interrupts:

[Mark M]

Thanks Ali, I wonder if it is worthwhile to buy a new compiler. I have purchased the PCH for one project and found the same optimizer defficecies as my old PCM 2.72 and therefore I found no reason to upgrade the PCM. But may be there is something else...

Mark

[Haplo]

Well PCM 2.72 is *very* old. Personally I have not used anything older than PCM 3.112, so I can't comment on that. However, this page might be useful:

http://www.ccsinfo.com/versions.shtml