;   configuration word for p10f200-206 ********************************
;   CODE protection off,
;   Watch Dog Timer disabled,
;   MCLReset disabled, pin3 is IO port
;    __config b'01000'
;
;   configuration word for p12f508-509 ********************************
;   CODE protection off,
;   Watch Dog Timer disabled,
;   MCLReset disabled, pin3 is IO port
;   Internal RC oscillator/RB4 function on RB4/OSC2/CLKOUT pin
    __config b'01010'
;   ezzel a beállítással a p10f200-206 is elmegy?
;
ior equ 6; gpio register
wcr equ 10;wait cointer register
str equ 2; strobe in
enb equ 3; enabled in
    org 0
;   az égetőprogram által számolt órajel pontosítás betöltése
     movwf 5;osccal
;   komparátor letiltása
     movlw 0
     movwf 7;cmcon0
;   timer0 source internal clock, not pin, prescaler assigned to timer0
     movlw b'11010111'
     option
;   0-1 pin output, 2-3 pin input
     movlw b'1100'
     tris ior
;   a bsf és bcf utasításokat nem szabad használni, mert azok nem tényleges bit, hanem
;   valójában byte műveletek, amihez a lábak állapota alapján (amit a külső hardware
;   elállíthat) rendeli (így esetenként tévesen) a maradék hét bitet
;   acknowledge, ebabled '1'
     movlw b'10'
     movwf ior
;
loop btfsc ior, str
     goto loop
;
     btfss ior, enb
     goto othr
;
     movlw b'11'
     movwf ior
    nop
     movlw b'10'
     movwf ior
;
othr movlw b'00'
     movwf ior
    nop
     movlw b'10'
     movwf ior
;
     movlw 1
     call wait
     goto loop
;
wait movwf wcr
wc1  decfsz wcr, 1     
     goto wc1
     retlw 0
    end

1, with ground on 19 STROBE out : normally high, pulsed low for about 1µs to clock the data being output into the printer.
2 2, with ground on 20 DATA 0 out : bit 0 of the ASCII data being output to the printer.
3 3, with ground on 21 DATA 1 out : bit 1 of the ASCII data being output to the printer.
4 4, with ground on 22 DATA 2 out : bit 2 of the ASCII data being output to the printer.
5 5, with ground on 23 DATA 3 out : bit 3 of the ASCII data being output to the printer.
6 6, with ground on 24 DATA 4 out : bit 4 of the ASCII data being output to the printer.
7 7, with ground on 25 DATA 5 out : bit 5 of the ASCII data being output to the printer.
8 8, with ground on 26 DATA 6 out : bit 6 of the ASCII data being output to the printer.
9 9, with ground on 27 DATA 7 out : bit 7 of the ASCII data being output to the printer.
10 10, with ground on 28 ACK in : normally high, pulsed low for about 5µs by the printer to acknowledge it has received and processed the last data byte.
11 11, with ground on 29 BUSY in : normally low, the printer takes this high when it cannot receive data (for example it is initialising, or is processing the last data byte received).
12 12, with ground on 30 PE in : normally low, the printer takes this high when it detects paper has run out.
13 13 SLCT in : the printer takes this high when it is selected (ie. on line).
14 14 AUTOFD out : for the XT computer, if low the printer should line-feed after each line has been printed.
15 32, with ground on 15 ERROR in : normally high, the printer takes this low if it detects an error.
16 31, with ground on 14 INIT out : normally high, taking this low for about 50µs then returning it high will initialise (reset) the printer.
17 36 SLCTIN out : when taken low by the computer, the printer is selected.