Problem with -ASM

[Megahertz]

I am trying to test one IR to RF code found on rentron, I am trying to adjust it for 16F877A. Can someone please help me correct this code: (Rest of my code will be in PBP)

ASM
	Hold  ; generate 40kHz carrier when GPIO.0 = 1
	bcf   PortD,2   ; LED = off
	btfss  PortD,0   ; Is data input at logic 1..?
	goto   $-1	; No, then keep waiting	
	Freq1
	bsf    PortD,2   ; Yes, so begin 40kHz IR carrier generation
	btfss  PortD,0  ; 2uS 
	goto   Hold  ; 3uS
	btfss  PortD,0   ; 4uS 
	goto   Hold  ; 5uS
	btfss  PortD,0	; 6uS
	goto   Hold  ; 7uS
	btfss  PortD,0	; 8uS
	goto   Hold     ; 9uS
	btfss  PortD,0   ; 10uS
	goto   Hold     ; 11uS
	btfss  PortD,0   ; 12uS
	goto   Hold     ; 13uS (~52% duty-cycle)
	bcf    PortD,2   ; 14uS turn off IR LED here
	btfss  PortD,0	; 15uS
	goto   Hold     ; 16uS
	btfss  PortD,0   ; 17uS
	goto   Hold  ; 18uS
	btfss  PortD,0	; 19uS
	goto   Hold  ; 20uS
	btfss  PortD,0   ; 21uS
	goto   Hold     ; 22uS
	btfsc  PortD,0   ; 23uS If PortD,0 = 0 end carrier, else continue
	goto   Freq1    ; 25uS, GOTO requires 2uS, 25uS total=40kHz
	goto   Hold     ; return & wait
ENDASM

END

Where there was GPIO I changed it to PortD, I know it seems wrong, but please excuse my ignorance towards Assembly.
My IR LED is attached to PortD.2 & My RF data in is at PortD.0
When I compile this the error which comes is: "\D_DRIVE\IR_TO_RF\IR_2_RF.ASM 231 : Symbol not previously defined (PortD)" x 15 times

[Kamikaze47]

Try using PORTD instead of PortD