Re: [Ktechlab-devel] instruction cycles

[<de...@on...>]

I think this bug is not completely fixed.
I compiled svn revision 828 today, and found the following results.

This program produces a perfect square wave on pin 1, as it should.

loop:
    BSF       PORTA, 1
    NOP
    NOP
    NOP
    BCF       PORTA,1
    NOP
    GOTO      loop


This other doesn't (low value stays for twice the time of the high). Note=

that it's almost the same of the first example. See attached image (examp=
le2).

loop:
    BSF       PORTA, 1
    NOP
    NOP
    ;NOP
    BCF       PORTA,1
    ;NOP
    GOTO      loop


This other is strange. The wave goes like that: 1 time high, 2 times low,=

2 times high, 2 times low and repeat. It's irregular. See attached image
(example3).

loop:
    BSF       PORTA, 1
    NOP
    NOP
    ;NOP
    BCF       PORTA,1
    NOP
    GOTO      loop


This one is also irregular. It's the inverse wave of the later.

loop:
    BSF       PORTA, 1
    NOP
    NOP
    NOP
    BCF       PORTA,1
    ;NOP
    GOTO      loop


This is always on low.

loop:
    BSF       PORTA, 1
    ;NOP
    ;NOP
    ;NOP
    BCF       PORTA,1
    ;NOP  ; 0 or more NOP here
    GOTO      loop


Also I attached 2 more backtraces.
If you want more information just ask. I'm happy to help.