Does variable value change being transferred to code running in interrupt loop?

[CuriousOne]

Just checked, sorry, I've pasted ENDIF at wrong place. It should look like this

SOFTPWM:
IF A=1 THEN
HIGH LED1
ENDIF
PAUSE 100
LOW LED1
PAUSE 100
GOTO SOFTPWM

and so on, for all LEDS and cases.

I want to run this code in background of main task, so this is why I wanted to use interrupt. Seems like it is impossible?