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- 0 DEV=PEEK(186)
- 1 A=A+1:IFA=1THENLOAD"SCROLLCODE",DEV,1
- 2 A=0
- 5 Q$=CHR$(34)
- 6 L$="[162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162][162]"
- 10 CR=49152:OK=0
- 20 SYSCR+3:GOSUB2000
- 30 SYSCR+12:SYSCR+6,2:SYSCR+9,24
- 40 SYSCR,"[158][212]HIS IS AN EXAMPLE OF A SCROLLING MESSAGE... "
- 50 PRINT" [212]HIS PROGRAM LETS YOU PUT SCROLLING
- 60 [153]" MESSAGES LIKE THE ONE BELOW INTO YOUR
- 70 PRINT" OWN PROGRAMS. [193]LL OF THE AVAILABLE
- 80 [153]" OPTIONS ARE ACCESSED THROUGH SYS(null)(null)(null)"
- 90 [153]" COMMANDS. (null)HESE ARE DESCRIBED ON THE
- 100 PRINT" FOLLOWING SCREENS. [201]T IS ASSUMED THAT
- 110 [153]" AT THE BEGINNING OF YOUR PROGRAM, YOU
- 120 PRINT" SET [158][195][210] = 49152."
- 130 GOSUB1500
- 140 :
- 150 SYSCR,"[158][197]XAMPLE MESSAGE... "
- 200 PRINT" [212]HERE ARE 5 [158][211][217][211] COMMANDS AVAILABLE:"
- 210 PRINT" [158][211][217][211] [195][210],"Q$"[205]ESSAGE"Q$" WILL CAUSE [158][205]ESSAGE"
- 220 PRINT" TO SCROLL CONTINUOUSLY ACROSS THE"
- 230 PRINT" SCREEN. [193]NY VALID STRING EXPRESSION
- 240 [153]" TO 255 CHARACTERS LONG."
- 250 [153]" RIGHT$N ADDITION, SEVERAL CONTROL CODES
- 260 PRINT" CAN BE INCLUDED IN THE STRING. [212]HESE
- 270 [153]" ARE EXPLAINED ON THE NEXT SCREEN."
- 280 [141] 1500
- 290 [158]CR,"(null)HITE PRINTCHR$REEN CONTPEEKLUE SYS(null)(null)(null) (null)(null)WAIT (null)(null)(null) (null)ASCASC "
- 300 [153]" (null)OU CAN USE THE COLOUR CONTROL KEYS TO
- 310 PRINT" CHANGE THE TEXT COLOUR IN THE SAME WAY
- 320 [153]" AS WITH SYS(null)(null)RIGHT$(null)(null). (null)OU CAN ALSO USE SYS(null)(null)(null) (null)(null)
- 330 PRINT" AND [158][210][214][211] [207][198][198]. [201]F YOU END THE STRING
- 340 [153]" WITH THE SYS(null)RIGHT$ SYMBOL, THEN THE MESSAGE"
- 350 [153]" WILL ONLY BE DISPLAYED ONCE, OTHERWISE
- 360 PRINT" IT WILL REPEAT CONTINUOUSLY.
- 370 [141]1500
- 380 [158]CR,"SYS(null)HIS TYPE OF MESSAGE CAN BE QUITE EFFECTIVE..."
- 400 [153]" SYS(null)(null)(null) LEN(null),ADDRESS CAN BE USED WHEN A
- 410 PRINT" MESSAGE IS MORE THAN 255 CHARACTERS
- 420 [153]" LONG. SYSATNDDRESS IS THE STARTING ADDRESS
- 430 PRINT" IN MEMORY OF THE MESSAGE. [212]HE LAST
- 440 [153]" BYTE IN THE MESSAGE SHOULD BE EITHER
- 450 PRINT" [158]0 OR [158]255 (FOR CONTINUOUS OR ONCE OFF)."
- 460 PRINT" [158][211][217][211] [195][210] BY ITSELF WILL TURN BACK ON
- 470 [153]" A MESSAGE WHICH HAD BEEN TURNED OFF."
- 480 [141] 1500
- 490 :
- 500 [158]CR,"PRINT(null)EMEMBER TO ALWAYS SET SYSLEN(null) = 49152 ":[158]CR[170]6,4
- 510 [153]" SYS(null)(null)(null) LEN(null)+3 WILL TURN OFF ANY MESSAGE
- 520 PRINT" WHICH IS CURRENTLY ON."
- 530 PRINT" [158][211][217][211] [195][210]+6,SPEED WILL SET THE SPEED OF
- 540 [153]" SCROLLING FROM SYS1=SLOW TO SYS10=FAST. (null)OU
- 550 PRINT" CAN USE VALUES ABOVE 10 IF YOU LIKE,
- 560 [153]" BUT THEY WILL BE TOO FAST TO READ."
- 570 [153]" (null)HE MESSAGE BELOW IS NOW SCROLLING
- 580 PRINT" AT SPEED 4."
- 590 OK=1:GOSUB1500
- 600 SYSCR+3:SYSCR+12:SYSCR+12,24
- 610 PRINT"[145]"L$""L$:SYSCR+9,6:SYSCR+6,2
- 620 SYSCR,"[158][195]OMMODORE 64 [211]MOOTH [211]CROLL [159]BY [197]DWARD [195]ARROLL, 1986 "
- 630 PRINT" [158][211][217][211] [195][210]+9,[204]INE SELECTS THE LINE TO BE
- 640 [153]" USED FOR THE SCROLLING. SYS(null)INE CAN BE
- 650 PRINT" ANY NUMBER FROM [158]0 TO [158]24. [217]OU CAN
- 660 [153]" ONLY HAVE ONE SCROLLING MESSAGE AT A
- 670 PRINT" TIME, HOWEVER."
- 680 OK=0:GOSUB1500
- 690 SYSCR+3:SYSCR+12:SYSCR+12,6:SYSCR+9,24:SYSCR+6,10
- 700 SYSCR,"[158][212]HIS MESSAGE IS SCROLLING AT SPEED 10 "
- 710 PRINT" [215]HEN A MESSAGE IS SCROLLING, THE WHOLE
- 720 [153]" LINE BEING SCROLLED IS STORED IN A
- 730 PRINT" BUFFER, SO THAT THE SCROLLING MESSAGE
- 740 [153]" WILL NOT BE AFFECTED BY THINGS LIKE
- 750 PRINT" SCROLLING, OR A CLEAR SCREEN. [200]OWEVER,
- 760 [153]" SYS(null)(null)(null) LEN(null)+12 WILL EMPTY THE BUFFER, SO
- 770 PRINT" THAT THE MESSAGE WILL SCROLL ONTO AN
- 780 [153]" EMPTY LINE.
- 790 GOSUB1500
- 795 SYSCR+6,3
- 796 SYSCR,"[158][206]EARLY AT THE END NOW...(AND AT A SLIGHTLY SLOWER SPEED TOO) "
- 800 PRINT" [217]OU CAN ALSO [158][211][217][211] [195][210]+12,[204]INE WHERE
- 810 [153]" SYS(null)INE IS THE NUMBER OF A SCREEN LINE
- 820 PRINT" ([158]0 TO [158]24). [212]HIS WILL FILL THE LINE
- 830 [153]" SPECIFIED WITH SPACES. (null)OU USUALLY
- 840 PRINT" NEED TO DO THIS IF YOU ARE TURNING
- 850 [153]" OFF A MESSAGE, AND WANT TO USE THE
- 860 PRINT" SCREEN SPACE FOR SOMETHING ELSE."
- 890 GOSUB1500
- 900 SYSCR,"[158][207]NLY ONE MORE SCREEN TO GO NOW.... "
- 910 PRINT" [159][211]UMMARY OF AVAILABLE COMMANDS"
- 920 PRINT" [158][211][217][211] [195][210] [210]ESUME SCROLLING
- 930 [153]" SYS(null)(null)(null) LEN(null),STRING (null)CROLL SYSSTRING"
- 940 [153]" SYS(null)(null)(null) LEN(null),ADDRESS (null)CROLL FROM SYSADDRESS"
- 950 [153]" (null)(null)(null) LEN(null)+3 (null)URN OFF SCROLLING"
- 960 [153]" SYS(null)(null)(null) LEN(null)+6,SPEED (null)ET SPEED OF SCROLLING
- 970 PRINT" [158][211][217][211] [195][210]+9,LINE [211]ET [158]LINE FOR SCROLLING
- 980 [153]" SYS(null)(null)(null) LEN(null)+12 VALMPTY SCROLL BUFFER"
- 990 [153]" SYS(null)(null)(null) LEN(null)+12,LINE LENLEAR THE SELECTED SYSLINE"
- 1000 [153]" ATNS WITH MOST COMPUTER PROGRAMS, THE
- 1010 PRINT" BEST WAY TO FIND OUT MORE ABOUT THIS
- 1020 [153]" IS TO EXPERIMENT WITH IT YOURSELF."
- 1030 [141]1500
- 1040 [153] "OPEN (null)HIS PROGRAM WAS WRITTEN BY"
- 1050 [153]" PRINTVALDWARD LENARROLL
- 1060 PRINT" 17 [199]REENVILLE [210]OAD
- 1070 [153]" PEEKLACKROCK
- 1080 PRINT" [195]O. [196]UBLIN
- 1090 [153]" RIGHT$RELAND
- 1100 PRINT" [212]EL: 801249
- 1120 [153]" (null)OW, SEE IF YOU CAN TYPE FAST ENOUGH
- 1130 PRINT" TO KEEP UP WITH THE SCROLLING. [212]YPE
- 1140 [153]" SYS1-SYS9 FOR SPEED, SYS(null)VAL(null)(null)(null)(null) TO EXIT, AND
- 1150 PRINT" ANY OTHER KEYS TO TYPE.[158]"
- 1160 GETA$:IFA$=""THEN1160
- 1170 IFVAL(A$)THENSYSCR+6,VAL(A$):SYSCR," [211]PEED "+A$+" SELECTED...[255]":GOTO1160
- 1180 IFA$<>CHR$(13)THENSYSCR,A$+"[255]":GOTO1160
- 1190 GOSUB2000
- 1200 PRINT"[158]SYS CR,"Q$:PRINT"[145][145][145][145]":POKE198,8:FORT=631TO638:POKET,29:NEXT
- 1210 END
- 1220 :
- 1230 :
- 1500 POKE214,21:PRINT
- 1510 IFPEEK(197)=60THEN1510
- 1520 PRINT"[153] [208]RESS [158][211][208][193][195][197][153] TO CONTINUE"
- 1530 POKE198,0
- 1540 GETA$:IFA$<>" "THEN1540
- 1570 :
- 1580 :
- 1900 IFOK=0THENSYSCR," ":SYSCR+12
- 2000 POKE53280,6:POKE53281,0
- 2010 PRINT "[147][153] [195]OMMODORE 64 [211]MOOTH [211]CROLL"
- 2020 PRINT" BY [197]DWARD [195]ARROLL 1986"
- 2025 IF OK THEN RETURN
- 2030 POKE214,22:PRINT
- 2040 PRINTL$""
- 2050 RETURN
-