64 ╦EYPAD IS A UTILITY WRITTEN TO ACCESS 128 SPECIFIC FEATURES SUCH AS FAST MODE AND THE FULL KEYBOARD WHEN IN 64 MODE. ╘O IMPROVE IT FURTHER, ╔ INCLUDED SEVERAL OTHER EXTREMELY USEFUL FEATURES.
╘HE PROGRAM IS CONTAINED IN ─┴╘┴ STATEMENTS, AND YOU'LL JUST HAVE TO RUN IT IN 64 MODE AS ANY OTHER ┬┴╙╔├ PROGRAM TO INSTALL IT. ╘HE SCREEN WILL GO HEYWIRE WHILE ┬┴╙╔├ IS READING THE ─┴╘┴ STATEMENTS. ╘HE COMPUTER IS TEMPORARILY OPERATING IN FAST (2═HZ) MODE TO MAKE IT AS FAST AS POSSIBLE; THERE ISN'T ANYTHING INTERESTING TO WATCH ANYWAY.
╔F YOU WANT TO MAKE USE OF ANY OTHER UTILITIES IN CONJUNCTION WITH 64 ╦┼┘╨┴─+, LOAD AND RUN THEM FIRST. ═AKE SURE THAT THEY DON'T USE OVERLAPPING MEMORY LOCATIONS. 64 ╦┼┘╨┴─+ USE LOCATIONS FROM 52224 TO 53247. ╘HE "─╧╙ ╫EDGE" UTILITY SUPPLIED WITH ├OMMODORE DISK DRIVES USE THE SAME MEMORY SPACE. ╘HEREFORE, MOST PROGRAMS THAT IS COMPATIBLE WITH "─╧╙ ╫EDGE" WILL BE COMPATIBLE WITH 64 ╦┼┘╨┴─+. ╘O ACTIVATE 64 ╦┼┘╨┴─+, LOAD AND RUN IT. ╙INCE 64 ╦┼┘╨┴─+ PRESERVES ALL VECTORS AND LEAVES THE NORMAL 64 KEYBOARD FREE, INCLUDING THE FUNCTION KEYS, IT WILL WORK WELL WITH OTHER UTILITIES AS WELL AS ACCELERATOR/─╧╙ SUPPORT/TOOLKIT CARTRIDGES.
╞EATURES:
╘HE MAIN FEATURE OF 64 ╦┼┘╨┴─+ IS THE NUMERIC KEYPAD. ╘HIS WILL WORK AS IN 128 MODE WITH THE EXCEPTION OF THE "+" AND "-" KEYS. ┴S ONE OF THE MOST PRACTICAL USES OF THE NUMERIC KEYPAD IS TO AID THE ENTERING OF ─┴╘┴ STATEMENTS, THESE KEYS HAVE BEEN GIVEN SPECIAL FUNCTIONS. ╘HE "+" KEY WILL REFLECT A COMMA, AND THE "-" WILL YIELD "─┴╘┴". ╬OW YOU CAN ENTER ─┴╘┴ STATEMENTS WITHOUT MOVING YOUR HAND AWAY FROM THE KEYPAD. ╘OGETHER WITH THE AUTOMATIC LINE NUMBERING FEATURE (SEE BELOW), YOU MAY SPEED UP YOUR TYPING TWO OR THREE TIMES. ┴T THE SAME TIME, YOU WILL BE ABLE TO REDUCE ERRORS CONSIDERABLY. ╔F YOU PREFER ALL KEYS TO REFLECT THEIR PROPER CHARACTERS, USE ╨╧╦┼ 52484,40 TO RESTORE THE "+" KEY, AND ╨╧╦┼ 52485,43 TO RESTORE THE "-" KEY. ╔F YOU LEAVE THE "+" TO YIELD "─┴╘┴", IT WILL ONLY WORK IN DIRECT MODE. ╔F YOU RESTORE IT'S PROPER VALUE, HOWEVER, IT WILL WORK AT ALL TIMES.
┴S MENTIONED BEFORE, THE NUMERIC KEYPAD ISN'T THE ONLY FEATURE OFFERED. ╠ET'S LOOK AT THE OTHERS:
┼╙├┴╨┼ ╦┼┘:
╨RESSING THE ┼╙├ KEY WILL AT ANY TIME TURN OFF QUOTE AND INSERT MODE.
┴╒╘╧═┴╘╔├ ╠╔╬┼ ╬╒═┬┼╥╔╬╟:
┴UTOMATIC LINE NUMBERING IS TRIGGERED BY TYPING ╙┘╙ 52862,LINE NUMBER,INCREMENT. ╨RESSING THE ╘┴┬ KEY WILL YIELD THIS ╙┘╙ ADDRESS SO YOU WON'T HAVE TO MEMORIZE IT. ┘OU CAN EXIT THE AUTOMATIC LINE NUMBERING FEATURE BY PRESSING ╥┼╘╒╥╬ OVER A LINE NUMBER BY ITSELF. ╨RESSING ╘┴┬ AND ╥┼╘╒╥╬ WILL RESTART THE AUTOMATIC LINE NUMBERING AT THE LAST NUMBER AUTOMATICALLY DISPLAYED. ╔F YOU LATER WISH TO CHANGE THE LINE NUMBER AND/OR INCREMENT, JUST PRESS ╘┴┬ AND ENTER THE NEW VALUES. ╫HEN USING THIS FEATURE FOR THE FIRST TIME AFTER LOADING 64 ╦┼┘╨┴─+, THE LINE NUMBER AND INCREMENT WILL BOTH DEFAULT TO 10. ╘HE ╘┴┬ KEY WILL ONLY WORK IN DIRECT MODE.
╞┴╙╘ ═╧─┼:
╨RESSING THE ┴╠╘ KEY WILL ALTERNATE BETWEEN NORMAL (1═HZ) AND FAST (2═HZ) CLOCK SPEED. ╙INCE THE ╓╔├ DISPLAY GOES CRAZY WHEN OPERATING IN ╞┴╙╘ MODE, THE SCREEN IS BLANKED. ╘HIS WILL NOT AFFECT THE SCREEN CONTENTS HOWEVER. ┼VERYTHING WILL ACT AS NORMAL, BUT YOU WON'T BE ABLE TO SEE WHAT'S HAPPENING.
┘OU SHOULD NOT USE THE COMPUTER IN 2═HZ MODE WHEN USING DISK DRIVES AND PRINTER ETC. SINCE THE 64'S OPERATING SYSTEM DON'T SUPPORT THE FASTER CLOCK SPEED. ┴LTHOUGH THE PERIPHERALS WILL OFTEN WORK, AMAZINGLY ENOUGH, YOU SHOULD ╬╧╘ MAKE A HABIT OF IT, SINCE UNEXPECTED THINGS MIGHT OCCUR.
╔F YOU WISH TO INCORPORATE ╞┴╙╘ MODE IN YOUR OWN PROGRAMS YOU CAN USE THE LINES BELOW TO TURN FAST MODE ON AND OFF:
╔T'S THE LAST PART (╨╧╦┼ 53296) THAT'S IMPORTANT. ╘HE FIRST PART OF THE LINES ONLY PROVIDES THE SCREEN BLANKING. ┘OU DON'T ACTUALLY HAVE TO BLANK THE SCREEN, SO IF YOU PREFER A WEIRD SCREEN WHILE THE COMPUTER READ YOUR ─┴╘┴ STATEMENTS, YOU MAY LEAVE IT OUT.
64 ╦┼┘╨┴─+ DOES HAVE A ROUTINE TO RESTORE THE COMPUTER TO NORMAL OPERATING SPEED WHEN ╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼ IS PRESSED. ┬UT IF YOU USE ╞┴╙╘ MODE WITHOUT 64 ╦┼┘╨┴─+ INSTALLED, THE COMPUTER WILL REMAIN IN ╞┴╙╘ MODE. ╘HEREFORE, MAKE SURE YOUR PROGRAM IS DEBUGGED BEFORE YOU USE THE LINES ABOVE.
─╔╙╦ ─╔╥┼├╘╧╥┘:
╨RESSING THE ╚┼╠╨ KEY WILL READ THE DIRECTORY FROM DISK (DEVICE 8) AND DISPLAY IT ON THE SCREEN WITHOUT DISTURBING ANY PROGRAMS IN MEMORY. ╔F YOU HOLD DOWN THE ╙╚╔╞╘ KEY TOGETHER WITH ╚┼╠╨, THE DIRECTORY OF DEVICE 9 WILL BE DISPLAYED. ╘HIS WILL ALSO SET THE DEFAULT DEVICE AS USED BY MANY ─╧╙ SUPPORT PROGRAMS AND CARTRIDGES. ┘OU CAN FREEZE THE DISPLAY WITH THE ╠╔╬┼ ╞┼┼─ OR ╬╧ ╙├╥╧╠╠ KEYS (SEE BELOW), AND CONTINUE BY PRESSING ╬╧ ╙├╥╧╠╠ OR ANY OTHER KEY. ╨RESS ╥╒╬/╙╘╧╨ TO ABORT.
╔F YOU MOVE THE CURSOR UP TO A PROGRAM NAME, IT WILL BE AUTOMATICALLY LOADED WHEN YOU PRESS ╥┼╘╒╥╬ (EQUIVALENT TO ╠╧┴─ "╨ROGRAM ╬AME",8,1). ╔F YOU PRESS ╙╚╔╞╘ ALONG WITH ╥┼╘╒╥╬ IT WILL BE LOADED AND THEN RUN (╠╧┴─"PROGRAM NAME",8 THEN ╥╒╬). ╘HE LAST DEVICE NUMBER ACCESSED, IF IT WAS 8 OR 9, WILL BE USED. ╔N OTHER CASES THE ROUTINE WILL ACCESS DEVICE 8.
╫HAT THE LOADING ROUTINE LOOKS FOR IS THE "╨╥╟" AT THE END OF EACH DIRECTORY ENTRY. ╔F THE CHARACTERS "╨╥╟" IS NOT PRESENT AT THE PROPER PLACE, NOTHING WILL HAPPEN. ╦EEP THIS IN MIND IF IT SHOULD SOMETIMES NOT WORK AS EXPECTED. ┴N ERROR MIGHT ALSO OCCUR IF YOU ENTER A ┬┴╙╔├ LINE WITH "╨╥╟" AT THE SAME PLACE ON THE SCREEN AS WHEN YOU LIST THE DISK DIRECTORY. 64 ╦┼┘╨┴─+ WILL THEN THINK IT'S A FILENAME AND ATTEMPT TO LOAD. ╔N PRACTICAL USE, HOWEVER, YOU WILL PROBABLY NEVER EXPERIENCE ANY PROBLEMS.
╠╔╬┼ ╞┼┼─ AND ╬╧ ╙├╥╧╠╠:
┬OTH KEYS CAN BE USED TO FREEZE THE SCREEN DISPLAY BUT WORKS SLIGHTLY DIFFERENT. ╘HE ╬╧ ╙├╥╧╠╠ KEY WORKS EXACTLY AS IN 128 MODE. ╫HEN PRESSED IT WILL INSTANTLY FREEZE THE TEXT SCREEN DISPLAY. ╨RESS IT AGAIN, OR ANY OTHER KEY TO CONTINUE.
╫HEN ╠╔╬┼ ╞┼┼─ IS PRESSED, THE ROUTINE WILL LOOK FOR A RETURN CHARACTER BEFORE IT FREEZES THE DISPLAY. ╨RESSING IT AGAIN WILL CONTINUE THE DISPLAY UNTIL THE NEXT RETURN CHARACTER IS ENCOUNTERED. ╘HIS IS EXTREMELY USEFUL IN MANY CASES. ┘OU CAN STEP SLOWLY THROUGH A ┬┴╙╔├ LISTING OR A DISK DIRECTORY FOR EXAMPLE. ╩UST PRESS ╠╔╬┼ ╞┼┼─ TO DISPLAY THE NEXT LINE. ┘OU CAN CONTINUE AS USUAL BY PRESSING ╬╧ ╙├╥╧╠╠ OR ANY OTHER KEY.
╔F YOU PRESS ╠╔╬┼ ╞┼┼─ OR ╬╧ ╙├╥╧╠╠ IN DIRECT MODE, THE COMPUTER WILL SEEM TO LOCK UP WHEN YOU PRESS ╥┼╘╒╥╬. ╘HAT'S BECAUSE WHEN THE NEXT CHARACTER IS TO BE DISPLAYED (THE EFFECT OF THE STATEMENT ENTERED, EVEN IF ╥┼╘╒╥╬ WAS PRESSED AT A BLANK LINE), THE FREEZE FEATURE WILL HAVE TAKEN EFFECT. ╙O THEREFORE, THE COMPUTER IS WAITING FOR YOU TO UN-FREEZE THE DISPLAY. ╨RESS ╬╧ ╙├╥╧╠╠ OR ANY OTHER KEY, AND EVERYTHING IS BACK TO NORMAL. ╘HIS MAY ALSO HAPPEN WITHIN A PROGRAM. ╔F FOR EXAMPLE THE PROGRAM IS PERFORMING A CALCULATION WHEN YOU PRESS THE ╠╔╬┼ ╞┼┼─ OR ╬╧ ╙├╥╧╠╠ KEYS, THE COMPUTER WILL FREEZE WHEN THE RESULT IS TO BE PRINTED. ╘O YOU, IT WOULD SEEM LIKE THE COMPUTER HAD CRASHED.
╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼:
╙EVERAL FEATURES HAVE BEEN ADDED HERE. ╘HE MOST IMPORTANT IS THE ABILITY TO PRESERVE ROUTINES THAT PREVIOUSLY WOULD BE DISABLED BY ╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼. ╩UST LET 64 ╦┼┘╨┴─+ BE THE LAST ROUTINE INSTALLED. ╔F YOU WISH, ON THE OTHER HAND, TO BE ABLE TO DISABLE A ROUTINE BY PRESSING ╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼, YOU SHOULD INSTALL THAT ROUTINE ┴╞╘┼╥ YOU HAVE INSTALLED 64 ╦┼┘╨┴─+. ╘HIS WILL SOMETIMES DISABLE ALL OR PART OF 64 ╦┼┘╨┴─+, BUT PRESSING ╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼ WILL BRING IT BACK. ╔F YOU WANT A ROUTINE INSTALLED AFTER 64 ╦┼┘╨┴─+ TO SURVIVE ╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼, TYPE ╙┘╙ 52254. ╘HIS WILL MAKE 64 ╦┼┘╨┴─+ ACCEPT THE NEW ROUTINE. ╨LEASE NOTE HOWEVER, THAT IF 64 ╦┼┘╨┴─+ HAS BEEN DISABLED BY THE NEW ROUTINE WHEN YOU ENTER THIS ╙┘╙, 64 ╦┼┘╨┴─+ WILL ╬╧╘ BE RE-ENABLED BY NEITHER ╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼ OR ╙┘╙ 52224.
┴ FEW ROUTINES MAY DISABLE 64 ╦┼┘╨┴─+'S ABILITY TO SURVIVE ╥╒╬/╙╘╧╨-RESTORE. ╔F THAT'S THE CASE, TYPE ╙┘╙ 52224 TO RE-ENABLE IT. ╘HE SAME ╙┘╙ WILL ALSO RE-ENABLE 64 ╦┼┘╨┴─+ (AND SOME OF YOUR OTHER ROUTINES) AFTER A RESET.
╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼ WILL WHEN 64 ╦┼┘╨┴─+ IS INSTALLED BE ABLE TO RECOVER FROM MORE CRASHES THAN NORMALLY. ╔T WILL ALSO RESTORE THE COMPUTER TO NORMAL IF ╞┴╙╘ MODE WAS ENABLED. ╔F YOU HAVE MADE EXPERIMENTS MOVING THE ╓╔├ ╔╔ SCREEN DISPLAY ADDRESS, YOU WILL HAVE NOTICED THAT THE COMPUTER SEEM TO CRASH WHEN YOU PRESS ╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼. ╘HIS IS BECAUSE THE OPERATING SYSTEM SCREEN MEMORY POINTER AT LOCATION 648 ISN'T CHANGED BACK TO IT'S ORIGINAL VALUE. ╘HEN THE CURSOR REMAINS IN A MEMORY AREA NOT DISPLAYED BY THE ╓╔├ ╔╔ CHIP. ╘HIS DEFICIENCY IS FIXED BY 64 ╦┼┘╨┴─+.
╘O ADD THESE FEATURES TO THE ╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼ COMBINATION THE ╬═╔ VECTOR AT 792 IS CHANGED TO POINT TO A SPECIFIC PART OF THE 64 ╦┼┘╨┴─+ CODE. ┴ POPULAR WAY TO DISABLE THE ╥╒╬/╙╘╧╨-╥┼╙╘╧╥┼ COMBINATION IS TO USE ╨╧╦┼ 792,193. ╘HAT IS IN FACT, THE SAME VALUE THAT 64 ╦┼┘╨┴─+ PUTS IN THIS LOCATION. ┴S AN EFFECT, THE ╥╒╬/╙╘╧╨ RESTORE COMBINATION WILL NOT BE DISABLED BY THAT ╨╧╦┼ WHEN 64 ╦┼┘╨┴─+ IS INSTALLED. ╧N THE OTHER HAND, IF THE ORIGINAL VALUE OF THIS LOCATION IS RESTORED BY A PROGRAM, THE COMPUTER MIGHT CRASH WHEN ╥┼╙╘╧╥┼ IS PRESSED. ╔F THAT SHOULD HAPPEN, RESET THE COMPUTER, AND TYPE ╙┘╙ 52224.
