RMW Problem?

Turn_OFF	
	BCF		b_Toggle
	BCF		b_ON_OFF			;clear ON flag	
	BSF		b_LCD_Vo			;turn off MAX851_high = off	
	DelayCy	(100*msecs)		;wait for Vo to rise
	DelayCy	(100*msecs)		;366mS needed at -4.139V
	DelayCy	(100*msecs)
	DelayCy	(100*msecs)	
	BCF		b_LCD_VDD			;turn off display VDD
	BCF		b_LED			;turn off indicator LED, safe to disconnect
	banksel	latE
	movlw	0x09
	movwf	latE
	movlb	0x00
	GOTO		LCD_Power			;

;******************************************************************
;
;  DelayCy() clock equate and delay operand multipliers
;
        radix   dec
clock   equ     4               ; clock frequency in Megahertz
usecs   equ     clock/4         ; cycles/microsecond multiplier
msecs   equ     usecs*1000      ; cycles/millisecond multiplier
;
;  5 cycle loop delay range 11..327690 cycles
;  6 cycle loop delay range 11..393226 cycles
;  7 cycle loop delay range 11..458762 cycles
;  8 cycle loop delay range 11..524298 cycles
;
loop    equ     8               ; select 5 to 8 cycle loop timing
;
;  K8LH DelayCy() macro generates four instructions for every
;  (loop * 65536 + 10) cycles in the delay.
;
DelayCy macro   delay           ; minimum 11 cycles
        local   cycles
        cycles = delay
    while cycles > (loop*65536+10)
        movlw   high((loop*65536-11)/loop)+1
        movwf   DelayHi
        movlw   low ((loop*65536-11)/loop)
        call    uDelay-((65536-11)%loop)
        cycles -= (loop*65536)
    endw
        movlw   high((cycles-11)/loop)+1
        movwf   DelayHi
        movlw   low ((cycles-11)/loop)
        call    uDelay-((cycles-11)%loop)
        endm

;******************************************************************
;  example code for simulation testing.
;
SimTest	DelayCy(500*msecs)	; <- put simulator PC here
	nop			; <- put simulator break point here

;******************************************************************
;  16 bit uDelay subroutine with adjustable 5..8 cycle loop time
;
	nop			; entry for (delay-11)%loop == 7  |B0
	nop			; entry for (delay-11)%loop == 6  |B0
	nop			; entry for (delay-11)%loop == 5  |B0
	nop			; entry for (delay-11)%loop == 4  |B0
	nop			; entry for (delay-11)%loop == 3  |B0
	nop			; entry for (delay-11)%loop == 2  |B0
	nop			; entry for (delay-11)%loop == 1  |B0
uDelay	addlw	-1		; subtract "loop" cycle time	  |B0
	skpc			; borrow? no, skip, else	  |B0
	decfsz	DelayHi,F	; done?  yes, skip, else	  |B0
	goto	uDelay+5-loop	; do another loop		  |B0
	return			;				  |B0
;