counter is not functioning

[saravana_3]

hi friends , I am using the HP-488-00-3 board, in my following program, i want to have delayed outputs at port B when my portA,1 is set and some outputs when the portA,1 is high, all other functions are fine, but my counter is not decrementing and give the output, i have attached my code, can any one point my mistake please


list p=16F84

radix hex
;It is a 16f84 xt oscillator, watchdog timer off, power-up timer on.
;include <p16f84.inc>
;__config _XT_OSC & _WDT_OFF & _PWRTE_ON

;----------------------------------------------------------------------
; cpu equates (memory map)
Status equ 0x03
portA equ 0x05 ; define the potA address
portB equ 0x06 ; (p. 10 defines port address)
Output_Status equ 0x08 ;
count1 equ 0xA0
count2 equ 0xA1
counter_status equ 0xA2
count3 equ 0xA3
count4 equ 0xA4
count5 equ 0xA5
count6 equ 0xA6
;----------------------------------------------------------------------


org 0x000

Initialise movlw 0X00
tris portB

movlw 0xFF
tris portA

;-----initialise PortB and Output_Status-------------
movlw 0x00
movwf portB
movwf counter_status

;-----------------------------------------------------





Start

;=========================================================================
;----------test bit-A0 if pressed invert B0--------------------

Test_Bit0





BTFSC portA,1
goto set_counter

BTFSS portA,0
goto clear_all




clear_all
BTFSC portA,1
goto set_counter

bcf portB,0
bcf portB,1
bcf portB,4

goto wait_0

set_counter
bsf portB,1
bcf portB,0
bcf portB,4

BTFSC counter_status,0
goto wait_0


movlw 0x01 ;--- to enable counter
movwf counter_status


movlw 0xFF
movwf count3

movlw 0x0A
movwf count4

movlw 0x00
movwf count5

movlw 0x00
movwf count6

goto wait_0


wait_0
;BTFSS portA,0
;goto Test_Bit1
;BTFSS portA,1
;goto Test_Bit1
;goto wait_0


Test_Bit1
BTFSS portA,0
goto clear_all

BTFSS portA,3
goto set_2

bsf portB,0
bsf portB,4
bsf portB,3
bcf portB,1
goto wait_1

set_2 bsf portB,0
bsf portB,4
bcf portB,3
bcf portB,1
goto wait_1


wait_1


;-------------5m Sec Delay------------------------
movlw 0xFF
movwf count1

movlw 0x0A ;here also can change the value for delay
movwf count2

Small_Delay

decfsz count1
goto Small_Delay

decfsz count2
goto Small_Delay

;----------------End of Delay----------------------


;-------------5m Sec Delay------------------------

BTFSS counter_status,0
goto Start


decfsz count3
goto Start

bsf portB,3

decfsz count4
goto Start

bsf portB,5


decfsz count5
goto Start

bsf portB,6

decfsz count6
goto Start



goto Start

end