; Source created with Parsic Version 3.x

; at              : 2008.11.09. 10:57:20


; Project File    : C:\PROGRA~1\Parsic\Examples\HE\FUTF_01.PIC

; Project Version : 1.0.2

; Created         : 2008.11.09. 10:55:58

; Last change     : 2008.11.09. 10:57:18

	PROCESSOR 16F628

	INCLUDE P16F628.INC

	RADIX DEC


	__IDLOCS H'0100'

	__CONFIG _CP_OFF & _PWRTE_ON & _WDT_OFF & _BODEN_ON & _INTRC_OSC_NOCLKOUT & _LVP_OFF & _MCLRE_OFF

; Diverses

ZERO	EQU Z	; ZERO-Flag
CARRY	 EQU C	; CARRY-Flag


; Variable

S0	= 32	; located in Bank 0
TR1	= 33	; located in Bank 0
TR1_HI	= 34	; located in Bank 0
ZV1	= 35	; located in Bank 0
ZV1_FD	= 36	; located in Bank 0
S1	= 37	; located in Bank 0
RAM	= 38	; located in Bank 0
SYS_WSAV	= 112	; located in Bank 0, 1, 2, 3
SYS_SSAV	= 113	; located in Bank 0, 1, 2, 3
SYS_FSAV	= 114	; located in Bank 0, 1, 2, 3

	ERRORLEVEL -302	; disable warning (Bankswitching)
	ERRORLEVEL -306	; disable warning (Pageswitching)

;****************************************
;Programmanfang
;****************************************

	ORG 0

	CLRF STATUS	; switch to RAM-Bank 0
	GOTO SYS_INIT
	NOP
	NOP

;****************************************
;Interrupt-Adress
;****************************************

	MOVWF SYS_WSAV	; save register
	SWAPF STATUS,W
	CLRF STATUS	; bank 0
	MOVWF SYS_SSAV
	MOVFW FSR
	MOVWF SYS_FSAV


	BTFSS INTCON,T0IF	; TMR0 ?
	GOTO NOTMR0INT
	BCF INTCON,T0IF	; Interrupt quitieren

	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	INCFSZ TR1,F
	GOTO SYS_INT_LABEL_0
	INCF TR1_HI,F

SYS_INT_LABEL_0
NOTMR0INT


EXITINT

	MOVFW SYS_FSAV
	MOVWF FSR
	SWAPF SYS_SSAV,W	; Register zurück
	MOVWF STATUS
	SWAPF SYS_WSAV,F
	SWAPF SYS_WSAV,W

	RETFIE


;****************************************
; Subroutines
;****************************************


;****************************************
;Initialisierung
;****************************************


SYS_INIT

	MOVLW B'00100000'
	MOVWF INTCON

; Set output before direction

	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	MOVLW B'00000000'
	MOVWF PORTA

	MOVLW B'00000000'
	MOVWF PORTB

	MOVLW 15
	BSF STATUS,RP0	; Bank 1
	MOVWF OPTION_REG


; Richtung setzen

	MOVLW B'11111111'
	MOVWF TRISA

	MOVLW B'11111111'
	MOVWF TRISB

	BCF STATUS,RP0	; Bank 0
	MOVLW 7	; Comparators off
	MOVWF CMCON
; init vars


; Clear RAM

	BCF STATUS,IRP
	MOVLW 32
	MOVWF FSR
CR1
	CLRF INDF
	INCF FSR,F
	BTFSS FSR,7
	GOTO CR1
	BSF FSR,5
CR2
	CLRF INDF
	INCF FSR,F
	MOVLW H'F0'
	SUBWF FSR,W
	BTFSS STATUS,ZERO
	GOTO CR2
	BSF STATUS,IRP
	MOVLW 32
	MOVWF FSR
CR3
	CLRF INDF
	INCF FSR,F
	MOVLW H'50'
	SUBWF FSR,W
	BTFSS STATUS,ZERO
	GOTO CR3


	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	CLRF TMR0
	BCF INTCON,T0IF
	BSF INTCON,GIE	; Interrupt freigeben

;**********************************
;******* Haupt-Programm ***********
;**********************************

MAIN

;***************************************************
; Vergleich -> IF1
;***************************************************

	MOVLW 8
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	SUBWF ZV1,W	; F - W -> W

LABEL_IF1_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,CARRY	; Test auf -> >
	GOTO LABEL_IF1_FALSE
	BTFSC STATUS,ZERO
	GOTO LABEL_IF1_FALSE

LABEL_IF1_TRUE
	BSF S0,1
	GOTO LABEL_IF1_EXIT

LABEL_IF1_FALSE
	BCF S0,1

LABEL_IF1_EXIT
;***************************************************
; Timer -> TR1
;***************************************************

	MOVLW 0	; Test auf >=
	SUBWF TR1_HI,W	;F-W -> W
	BTFSS STATUS,ZERO
	GOTO LABEL_TR1_CHECK
	MOVLW 195
	SUBWF TR1,W	;F-W -> W
LABEL_TR1_CHECK
	BTFSS STATUS,CARRY
	GOTO LABEL_TR1_ENDE

LABEL_TR1_RESET
	MOVLW 0	; Test auf >=
	SUBWF TR1_HI,F	;F-W -> F
	MOVLW 195
	SUBWF TR1,F	;F-W -> F
	BTFSS STATUS,CARRY
	DECF TR1_HI,F

LABEL_TR1_SET	; toggel output
	BTFSC S0,0
	GOTO LABEL_TR1_CLR
	BSF S0,0
	GOTO LABEL_TR1_ENDE
LABEL_TR1_CLR
	BCF S0,0
LABEL_TR1_ENDE

;***************************************************
; Zähler -> ZV1
;***************************************************

	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS S0,2	; Reset ?
	GOTO LABEL_ZV1_COUNT
	CLRF ZV1
	GOTO LABEL_ZV1_SETOUT

LABEL_ZV1_COUNT

; Test auf positive Flanke

	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS S0,0
	GOTO LABEL_ZV1_SETFD
	BTFSC ZV1_FD,0
	GOTO LABEL_ZV1_SETFD

	BSF ZV1_FD,0


	BTFSC S0,4	; Vorwärts oder Rückwärts ?
	GOTO LABEL_ZV1_BACKWARD

	INCF ZV1,F
	GOTO LABEL_ZV1_SETOUT

LABEL_ZV1_BACKWARD
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	DECF ZV1,F

LABEL_ZV1_SETOUT


LABEL_ZV1_SETFD

; Test auf negative Flanke

	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSC S0,0
	GOTO LABEL_ZV1_EXIT
	BCF ZV1_FD,0

LABEL_ZV1_EXIT

;***************************************************
; RS-FLIP-FLOP -> RS1
;***************************************************

	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSC S0,3
	GOTO LABEL_RS1_RESET
	BTFSS S0,1
	GOTO LABEL_RS1_ENDE
	BSF S0,4	; Ausgang setzen
	GOTO LABEL_RS1_ENDE
LABEL_RS1_RESET
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BCF S0,4	; Ausgang zurücksetzen
LABEL_RS1_ENDE

;***************************************************
; Vergleich -> IF2
;***************************************************

	MOVLW 0
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	SUBWF ZV1,W	; F - W -> W

LABEL_IF2_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,ZERO	; Test auf -> =
	GOTO LABEL_IF2_FALSE

LABEL_IF2_TRUE
	BSF S0,3
	GOTO LABEL_IF2_EXIT

LABEL_IF2_FALSE
	BCF S0,3

LABEL_IF2_EXIT
;***************************************************
; Vergleich -> IF3
;***************************************************

	MOVLW 0
	SUBWF ZV1,W	; F - W -> W

LABEL_IF3_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,ZERO	; Test auf -> =
	GOTO LABEL_IF3_FALSE

LABEL_IF3_TRUE
	BSF S0,5
	GOTO LABEL_IF3_EXIT

LABEL_IF3_FALSE
	BCF S0,5

LABEL_IF3_EXIT
;***************************************************
; Vergleich -> IF4
;***************************************************

	MOVLW 1
	SUBWF ZV1,W	; F - W -> W

LABEL_IF4_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,ZERO	; Test auf -> =
	GOTO LABEL_IF4_FALSE

LABEL_IF4_TRUE
	BSF S0,6
	GOTO LABEL_IF4_EXIT

LABEL_IF4_FALSE
	BCF S0,6

LABEL_IF4_EXIT
;***************************************************
; Vergleich -> IF5
;***************************************************

	MOVLW 2
	SUBWF ZV1,W	; F - W -> W

LABEL_IF5_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,ZERO	; Test auf -> =
	GOTO LABEL_IF5_FALSE

LABEL_IF5_TRUE
	BSF S0,7
	GOTO LABEL_IF5_EXIT

LABEL_IF5_FALSE
	BCF S0,7

LABEL_IF5_EXIT
;***************************************************
; Vergleich -> IF6
;***************************************************

	MOVLW 3
	SUBWF ZV1,W	; F - W -> W

LABEL_IF6_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,ZERO	; Test auf -> =
	GOTO LABEL_IF6_FALSE

LABEL_IF6_TRUE
	BSF S1,0
	GOTO LABEL_IF6_EXIT

LABEL_IF6_FALSE
	BCF S1,0

LABEL_IF6_EXIT
;***************************************************
; Vergleich -> IF7
;***************************************************

	MOVLW 4
	SUBWF ZV1,W	; F - W -> W

LABEL_IF7_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,ZERO	; Test auf -> =
	GOTO LABEL_IF7_FALSE

LABEL_IF7_TRUE
	BSF S1,1
	GOTO LABEL_IF7_EXIT

LABEL_IF7_FALSE
	BCF S1,1

LABEL_IF7_EXIT
;***************************************************
; Vergleich -> IF8
;***************************************************

	MOVLW 5
	SUBWF ZV1,W	; F - W -> W

LABEL_IF8_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,ZERO	; Test auf -> =
	GOTO LABEL_IF8_FALSE

LABEL_IF8_TRUE
	BSF S1,2
	GOTO LABEL_IF8_EXIT

LABEL_IF8_FALSE
	BCF S1,2

LABEL_IF8_EXIT
;***************************************************
; Vergleich -> IF9
;***************************************************

	MOVLW 6
	SUBWF ZV1,W	; F - W -> W

LABEL_IF9_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,ZERO	; Test auf -> =
	GOTO LABEL_IF9_FALSE

LABEL_IF9_TRUE
	BSF S1,3
	GOTO LABEL_IF9_EXIT

LABEL_IF9_FALSE
	BCF S1,3

LABEL_IF9_EXIT
;***************************************************
; Vergleich -> IF10
;***************************************************

	MOVLW 7
	SUBWF ZV1,W	; F - W -> W

LABEL_IF10_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,ZERO	; Test auf -> =
	GOTO LABEL_IF10_FALSE

LABEL_IF10_TRUE
	BSF S1,4
	GOTO LABEL_IF10_EXIT

LABEL_IF10_FALSE
	BCF S1,4

LABEL_IF10_EXIT
;***************************************************
; Vergleich -> IF11
;***************************************************

	MOVLW 8
	SUBWF ZV1,W	; F - W -> W

LABEL_IF11_CHECK
	BCF STATUS,RP0	; Bank 0
	BCF STATUS,RP1	; Bank 0
	BTFSS STATUS,ZERO	; Test auf -> =
	GOTO LABEL_IF11_FALSE

LABEL_IF11_TRUE
	BSF S1,5
	GOTO LABEL_IF11_EXIT

LABEL_IF11_FALSE
	BCF S1,5

LABEL_IF11_EXIT
;***************************************************
; GND
;***************************************************

	BCF S0,2	; immer Low

;****************************************

	GOTO MAIN


	END