That's PDS Proton... on a PBP forum
SET GPIO.x will translate to GPIO.x = 1 or HIGH GPIO.x (ASM BSF)
Clear GPIO.x, will translate GPIO.x=0 (ASM BCF)

Rsout = DEBUG

DelayMS = PAUSE
DelayUs = PAUSEUS

ALL_DIGITAL = should be something like ANSEL=0 AND CMCON = 7

Now just translate it to PBP, build the circuit,. and you're half done