Fast Loop in PICBASIC Pro

[Bruce]

I VAR BYTE SYSTEM

LOOP1: ; 150 cycles. Not very fast
    For I=10 TO 1 STEP -1
    NEXT I
    
LOOP2: ; 90 cycles. A lot better
    I = 10
    REPEAT
     I=I-1
    UNTIL I=0

ASM   ; 31 cycles. Pretty fast
LOOP3
     MOVLW 0xA
     MOVWF I      ; I=10
INNER
     DECFSZ I,F   ; I=I-1. IF I=0 skip next instruction
     GOTO INNER  ; Loop until I=0
ENDASM

FINISH:
    GOTO FINISH