10
20 :
30 DIM ctrl% 31:X%=ctrl%:Y%=X%DIV256
40 DIM inBuf% &4F,outBuf% &1F:rxNum%=0
50 :
60 ON ERROR REPORT:PROCNet_RxKill(rxNum%):PRINT:END
70 :
80 rxNum%=FNNet_RxOpen(0,&B1,inBuf%,&50)
90 $outBuf%="TELETEXT"
100 REPEAT
110 tx%=FNNet_TxCount(&FFFF,&80,&B0,outBuf%,8,0,0,0)
120 IF tx% THEN PRINT FNNet_Err(tx%):END
130 rx%=FNNet_Rx(rxNum%)
140 IF NOT rx%:PROCDelay(200)
150 UNTIL rx%
160 rxsize%=FNNet_RxRead(rxNum%)
170 stn%=X%!3
180 portBase%=inBuf%?1
190 inBuf%?(12+inBuf%?11)=13
200 name$=$(inBuf%+12)
210 PRINT "Teletext server = ";FNNet_Stn(Stn%);" ";name$
220 :
230 rxNum%=FNNet_RxOpen(stn%,portBase%,inBuf%,&50)
240 tx%=FNNet_TxCount(stn%,&84,portBase%+1,outBuf%,1,10,50)
250 IF tx% THEN PRINT FNNet_Err(tx%):END
260 REPEAT PROCDelay(200):UNTIL FNNet_Rx(rx%)
270 rxsize%=FNNet_RxRead(rx%)
280 PRINT "The time is "$(inBuf%+1)
290 END
300 :
310 :
320 :
330 DEFFNNet_TxCount(Stn%,Ctrl%,Port%,Addr%,Len%,RAddr%,Try%,Delay%):LOCAL TxErr%
340 DEFFNNet_Tx(Stn%,Ctrl%,Port%,Addr%,Len%,RAddr%):LOCAL TxErr%,Try%,Delay%:Try%=10:Delay%=50
350 X%?1=Port%:X%!2=Stn%:X%!4=Addr%:X%!8=Addr%+Len%:X%!12=RAddr%
360 IFStn%=&FFFF:X%!4=Addr%!0:X%!8=Addr%!4
370 REPEAT:REPEAT:X%?0=Ctrl%:A%=&10:CALL &FFF1:UNTILX%?0
380 REPEAT:TxErr%=FNbyte(&32,0,0):UNTILTxErr%<&80
390 IFTxErr%=&41 OR TxErr%=&42:IFTry%:A%=TIME+Delay%:REPEATUNTILTIME>A%:Try%=Try%-1
400 UNTILNOT(TxErr%=&41 OR TxErr%=&42) OR Try%<1:=TxErr%
410 :
420 DEFFNNet_RxOpen(Stn%,Port%,Addr%,Len%)
430 X%?0=0:X%?1=&7F:X%?2=Port%:X%!3=Stn%:X%!5=Addr%:X%!9=Addr%+Len%
440 A%=&11:CALL &FFF1:=X%?0
450 :
460 DEFFNNet_Rx(RxNum%):=(FNbyte(&33,RxNum%,0)AND&80)<>0
470 :
480 DEFFNNet_RxRead(RxNum%)
490 X%?0=RxNum%:A%=&11:CALL &FFF1:A%=X%!9-X%!5:X%!5=0:=A%
500 :
510 DEFPROCNet_RxKill(RxNum%):A%=FNbyte(&34,RxNum%,0):ENDPROC
520 :
530 DEFFNNet_Err(A%):IFA%=0:=""
540 =MID$("Line jammedNet errorNot listeningNo clockBad Tx blockNo reply",VALMID$("011221344254",(A%-&40)*2+1,2),VALMID$("110913081208",(A%-&40)*2+1,2))
550 :
560 DEFFNNet_Stn(A%):=LEFT$(FNd0(A%DIV256,3)+".",(A%DIV256)<>0)+FNd0(A%AND255,3)
570 DEFFNNet_StnFixed(A%):=FNd0(A%DIV256,3)+"."+FNd0(A%AND255,3)
580 :
590 DEFFNbyte(A%,X%,Y%)=((USR&FFF4)AND&FF00)DIV256
600 DEFFNd0(A%,N%)=RIGHT$("00000000"+STR$A%,N%)
610 DEFFNh0(A%,N%)=RIGHT$("0000000"+STR$~A%,N%)
620 DEFPROCDelay(A%):A%=TIME+A%:REPEATUNTILTIME>A%:ENDPROC