SPWM_INT - Multiple Software PWM Question

[RossWaddell]

Any idea why I get this ASM warning when compiling my code? I've included the snippet of code which I think is applicable, and the full code too.

' ***************************************************************
' Set up registers for PWM on CCP3 & 4
' ***************************************************************

; Use Mister E's MultiCalc to calculate PR2 value & hence Prescaler setting
; for T2CON:

; http://www.picbasic.co.uk/forum/content.php?r=159-New-PIC-Utility.-PICMultiCalc

; Can also use this web-based site:
; http://www.micro-examples.com/public/microex-navig/doc/097-pwm-calculator.html

CCP3CON = %00001100         ; Use CCP3 in PWM mode
CCP4CON = %00001100         ; Use CCP4 in PWM mode

;CCPTMRS = %00000000         ; Use Timer2 for all CCPs in PWM mode
                             ; (The default appears to be Timer2, so no need
                             ; to set it explicitly)
                             
T2CON   = %00000100         ; Timer2 on with 1:1 prescaler
PR2     = 249               ; For 16Mhz OSC the desired output of 16,000Hz is
                            ; achieved with this PR2 value (10-bit resolution
                            ; with 1:1 prescaler)

MinDuty CON 50              ; Lowest possible duty cycle at which motor spins
MaxDuty CON 1000            ; Maximum duty cycle available with PR2 = 249 and
                            ; 1:1 prescaler (According to Darrel:
                            ;      MaxDuty = (PR2 + 1) * 4

DutyVar3 VAR WORD
DutyVar4 VAR WORD

' Spin up motors to saved value of _MotorRPM
' (Below a cycle of MinDuty, the motors don't move at all)
FOR I = (MinDuty - 10) to MotorRPM
    DutyVar3  = I
    CCP3CON.4 = DutyVar3.0
    CCP3CON.5 = DutyVar3.1
    CCPR3L    = DutyVar3 >> 2

    IF PortEngDir = 0 THEN
        DutyVar4  = I
        CCP4CON.4 = DutyVar4.0
        CCP4CON.5 = DutyVar4.1
        CCPR4L    = DutyVar4 >> 2    
    ELSE
        DutyVar4  = (MaxDuty - I)
        CCP4CON.4 = DutyVar4.0
        CCP4CON.5 = DutyVar4.1
        CCPR4L    = DutyVar4 >> 2        
    ENDIF

    pause 33
NEXT I

Full PIC code:
PIC16F1825_Code.txt