BASIC EXTENDER.@
FILE INFORMATION
FILENAME(S): BASIC EXTENDER.@
FILE TYPE(S): PRG
FILE SIZE: 5.9K
FIRST SEEN: 2025-11-30 21:15:44
APPEARS ON: 1 disk(s)
FILE HASH
dc550b81ba2979977fe1416c01cf4756c826110aca0d53251d701fd5d758f96c
FOUND ON DISKS (1 DISKS)
| DISK TITLE | FILENAME | FILE TYPE | COLLECTION | TRACK | SECTOR | ACTIONS |
|---|---|---|---|---|---|---|
| 64TAPE COMP UK 1 | BASIC EXTENDER.@ | PRG | DuncanTwain | 25 | 3 | DOWNLOAD FILE |
FILE CONTENT & ANALYSIS
> DETECTED: COMMODORE BASIC PROGRAM (LOAD ADDRESS $0801)
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00000F40: A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 |................|
00000F50: A3 A3 A3 A3 A3 A3 A3 A3 22 00 A6 17 BE 00 99 22 |........"......"|
00000F60: 11 1F 54 48 45 20 46 49 52 53 54 20 53 54 45 50 |..THE FIRST STEP|
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00001010: 38 2B 42 41 4E 4B 22 3B 00 40 18 C1 00 99 22 20 |8+BANK";.@...." |
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000010C0: 49 54 48 2E 2E 2E 20 20 20 20 1C 53 59 53 20 35 |ITH... .SYS 5|
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000010E0: 22 11 1F 49 46 20 56 3D 30 20 54 48 45 20 55 50 |"..IF V=0 THE UP|
000010F0: 50 45 52 43 41 53 45 20 53 45 54 20 49 53 20 43 |PERCASE SET IS C|
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00001140: 00 99 22 13 54 4F 20 52 45 44 45 46 49 4E 45 20 |..".TO REDEFINE |
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000011D0: 43 4B 45 54 53 20 41 4E 44 20 4E 4F 20 43 4F 4D |CKETS AND NO COM|
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00001220: 43 48 20 43 48 41 52 41 43 54 45 52 20 49 53 20 |CH CHARACTER IS |
00001230: 54 4F 20 42 45 20 20 20 41 4C 54 45 52 45 44 2E |TO BE ALTERED.|
00001240: 20 54 48 45 20 45 49 47 48 54 20 46 4F 4C 4C 4F | THE EIGHT FOLLO|
00001250: 57 49 4E 47 22 3B 00 7B 1A CC 00 99 22 20 50 41 |WING";.{...." PA|
00001260: 52 41 4D 45 54 45 52 53 20 44 45 46 49 4E 45 20 |RAMETERS DEFINE |
00001270: 54 48 45 20 53 48 41 50 45 2E 22 00 AA 1A CD 00 |THE SHAPE.".....|
00001280: 99 22 11 54 4F 20 52 45 44 45 46 49 4E 45 20 27 |.".TO REDEFINE '|
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000012A0: 43 45 20 54 52 59 2E 2E 2E 22 00 DF 1A CE 00 99 |CE TRY..."......|
000012B0: 22 11 1C 53 59 53 35 30 30 30 30 2C 41 43 20 5B |"..SYS50000,AC [|
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000012D0: 2C 31 36 35 2C 31 35 33 2C 36 36 2C 36 30 22 00 |,165,153,66,60".|
000012E0: E8 1A CF 00 8D 32 33 38 00 19 1B D0 00 99 22 13 |.....238......".|
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00001310: 45 20 57 49 54 48 2E 2E 22 00 3E 1B D1 00 58 B2 |E WITH..".>...X.|
00001320: 31 30 3A 59 B2 33 3A 8D 32 34 31 3A 99 22 1C 53 |10:Y.3:.241:.".S|
00001330: 59 53 20 35 30 30 30 30 2C 43 4D 2C 58 22 00 61 |YS 50000,CM,X".a|
00001340: 1B D2 00 99 22 11 1F 58 3D 30 20 47 49 56 45 53 |...."..X=0 GIVES|
00001350: 20 4E 4F 52 4D 41 4C 20 47 52 41 50 48 49 43 53 | NORMAL GRAPHICS|
00001360: 22 00 83 1B D3 00 99 22 58 3D 31 20 47 49 56 45 |"......"X=1 GIVE|
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00001380: 44 45 22 00 AD 1B D4 00 99 22 58 3D 32 20 47 49 |DE"......"X=2 GI|
00001390: 56 45 53 20 45 58 54 45 4E 44 45 44 20 42 41 43 |VES EXTENDED BAC|
000013A0: 4B 47 52 4F 55 4E 44 20 4D 4F 44 45 22 00 DC 1B |KGROUND MODE"...|
000013B0: D5 00 99 22 11 59 4F 55 20 43 48 41 4E 47 45 20 |...".YOU CHANGE |
000013C0: 54 48 45 20 43 4F 4C 4F 55 52 20 52 45 47 49 53 |THE COLOUR REGIS|
000013D0: 54 45 52 53 20 57 49 54 48 2E 2E 22 00 00 1C D6 |TERS WITH.."....|
000013E0: 00 99 22 11 1C 20 20 20 20 20 53 59 53 20 35 30 |..".. SYS 50|
000013F0: 30 30 30 2C 43 4C 2C 43 31 2C 43 32 2C 43 33 22 |000,CL,C1,C2,C3"|
00001400: 00 2D 1C D7 00 99 22 11 1F 43 31 2C 43 32 20 41 |.-...."..C1,C2 A|
00001410: 4E 44 20 43 33 20 52 45 46 45 52 20 54 4F 20 54 |ND C3 REFER TO T|
00001420: 48 45 20 52 45 47 49 53 54 45 52 53 22 00 55 1C |HE REGISTERS".U.|
00001430: D8 00 8D 32 33 38 3A 99 22 13 35 2E 20 4D 49 53 |...238:.".5. MIS|
00001440: 43 45 4C 4C 41 4E 45 4F 55 53 20 43 4F 4D 4D 41 |CELLANEOUS COMMA|
00001450: 4E 44 53 2E 22 00 76 1C D9 00 99 22 A3 A3 A3 A3 |NDS.".v...."....|
00001460: A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 A3 |................|
00001470: A3 A3 A3 A3 A3 22 00 99 1C DA 00 99 22 11 54 4F |....."......".TO|
00001480: 20 53 41 56 45 20 41 20 42 4C 4F 43 4B 20 4F 46 | SAVE A BLOCK OF|
00001490: 20 52 41 4D 2E 2E 2E 2E 22 00 C7 1C DB 00 99 22 | RAM...."......"|
000014A0: 11 90 53 59 53 20 35 30 30 30 30 2C 42 53 20 27 |..SYS 50000,BS '|
000014B0: 46 49 4C 45 4E 41 4D 45 27 2C 44 4E 2C 32 2C 53 |FILENAME',DN,2,S|
000014C0: 41 2C 46 41 2C 46 22 00 EF 1C DC 00 99 22 11 97 |A,FA,F"......"..|
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000014F0: 09 1D DD 00 99 22 53 41 20 3D 20 53 54 41 52 54 |....."SA = START|
00001500: 20 41 44 44 52 45 53 53 22 00 23 1D DE 00 99 22 | ADDRESS".#...."|
00001510: 46 41 20 3D 20 53 54 41 52 54 20 41 44 44 52 45 |FA = START ADDRE|
00001520: 53 53 22 00 4E 1D DF 00 99 22 46 20 3D 20 30 20 |SS".N...."F = 0 |
00001530: 4C 45 41 56 45 53 20 42 41 53 49 43 20 52 4F 4D |LEAVES BASIC ROM|
00001540: 20 53 57 49 54 43 48 45 44 20 49 4E 2E 22 00 73 | SWITCHED IN.".s|
00001550: 1D E0 00 99 22 46 20 3D 20 31 20 53 57 49 54 43 |...."F = 1 SWITC|
00001560: 48 45 53 20 42 41 53 49 43 20 52 4F 4D 20 4F 55 |HES BASIC ROM OU|
00001570: 54 2E 22 00 A1 1D E1 00 99 22 11 1C 54 4F 20 52 |T."......"..TO R|
00001580: 45 56 49 45 57 20 4D 45 4D 4F 52 59 20 53 54 41 |EVIEW MEMORY STA|
00001590: 54 55 53 20 4F 46 20 4D 41 43 48 49 4E 45 2E 2E |TUS OF MACHINE..|
000015A0: 22 00 C1 1D E2 00 99 22 11 20 20 20 20 20 20 20 |"......". |
000015B0: 20 20 20 90 53 59 53 20 35 30 30 30 30 2C 53 54 | .SYS 50000,ST|
000015C0: 22 00 D5 1D E3 00 99 22 11 1C 46 4F 52 20 48 45 |"......"..FOR HE|
000015D0: 4C 50 2E 2E 22 00 F5 1D E4 00 99 22 11 20 20 20 |LP.."......". |
000015E0: 20 20 20 20 20 20 20 90 53 59 53 20 35 30 30 30 | .SYS 5000|
000015F0: 30 2C 48 50 22 00 FE 1D E5 00 8D 32 33 38 00 22 |0,HP"......238."|
00001600: 1E E6 00 99 22 13 1C 54 4F 20 50 4C 41 43 45 20 |...."..TO PLACE |
00001610: 54 48 45 20 43 55 52 53 4F 52 20 41 54 20 58 2C |THE CURSOR AT X,|
00001620: 59 22 00 42 1E E7 00 99 22 11 90 20 20 20 20 20 |Y".B....".. |
00001630: 20 53 59 53 20 35 30 30 30 30 2C 50 40 2C 58 2C | SYS 50000,P@,X,|
00001640: 59 22 00 6B 1E E8 00 99 22 11 1C 58 3D 48 4F 52 |Y".k...."..X=HOR|
00001650: 49 5A 4F 4E 54 41 4C 20 50 4F 53 49 54 49 4F 4E |IZONTAL POSITION|
00001660: 20 28 30 20 54 4F 20 33 39 29 22 00 92 1E E9 00 | (0 TO 39)".....|
00001670: 99 22 11 1C 59 3D 56 45 52 54 49 43 41 4C 20 50 |."..Y=VERTICAL P|
00001680: 4F 53 49 54 49 4F 4E 20 28 30 20 54 4F 20 32 34 |OSITION (0 TO 24|
00001690: 29 22 00 A0 1E EA 00 8D 32 33 38 3A 99 22 93 22 |)"......238:."."|
000016A0: 00 B2 1E EB 00 97 35 35 2C 30 3A 97 35 36 2C 31 |......55,0:.56,1|
000016B0: 35 39 00 EC 1E EC 00 99 22 93 96 11 11 4E 45 57 |59......"....NEW|
000016C0: 9D 9D 9D 11 11 11 4C 4F 41 44 22 C7 28 33 34 29 |......LOAD".(34)|
000016D0: 22 2F 42 41 53 49 43 20 45 58 54 45 4E 44 45 52 |"/BASIC EXTENDER|
000016E0: 22 C7 28 33 34 29 22 2C 38 13 22 3B 00 0A 1F ED |".(34)",8.";....|
000016F0: 00 97 31 39 38 2C 32 3A 97 36 33 31 2C 31 33 3A |..198,2:.631,13:|
00001700: 97 36 33 32 2C 31 33 31 3A 80 00 44 1F EE 00 58 |.632,131:..D...X|
00001710: B2 32 3A 59 B2 32 33 3A 8D 32 34 31 3A 99 22 12 |.2:Y.23:.241:.".|
00001720: 50 20 52 20 45 20 53 20 53 20 20 41 20 20 4B 20 |P R E S S A K |
00001730: 45 20 59 20 20 46 20 4F 20 52 20 20 4D 20 4F 20 |E Y F O R M O |
00001740: 52 20 45 22 00 56 1F EF 00 92 20 31 39 37 2C 36 |R E".V.... 197,6|
00001750: 30 3A 99 22 93 22 00 5C 1F F0 00 8E 00 7E 1F F1 |0:.".".\.....~..|
00001760: 00 97 37 38 31 2C 59 3A 97 37 38 32 2C 58 3A 97 |..781,Y:.782,X:.|
00001770: 37 38 33 2C 30 3A 9E 36 35 35 32 30 3A 8E 00 00 |783,0:.65520:...|
00001780: 00 |. |
....D.BO.53280:PA.BO.1:IN.646.8.E..BO,7:
.PA,2:.IN,7:.".".I.F.X.7:Y.5:.241:.".B A
S I C E X T E N D E R."...G.X.12:Y.8:.
241:.IN,1:."A & M ASSOCIATES"...H.X.18:Y
.10:.241:.IN,3:."1984"...I.. 238.V.J..PA
,3:.BO,6:.IN,1...K.X.0:Y.1:.241.9.L.."TH
E CMB 64 IS A SUPERB MACHINE BUT IT'S
LET DOWN BY IT'S POOR BASIC.".C.M..I
N,2...N..". YOU CAN BUY ADD-ON PACKAGES
SUCH AS SIMON'S BASIC IF YOU CAN";.P
.O.." AFFORD THEM.":.IN,5:X.8:Y.8:.241:.
"IF YOU CAN'T..TRY THIS"...P.X.1:Y.11:.I
N,0:.241.8.Q.."WITH THIS PACKAGE YOU WIL
L HAVE 20 EASY COMMANDS WHICH WI
LL MAKE".D.R.." YOUR 64 A LITTLE EAS
IER TO USE.".M.S..238...T..BO,3:.PA,5:.I
N,6.S.U..".SO THAT THE SPEED OF YOUR BAS
IC PROGRAMSIS NOT REDUCED, A DIRECT CALL
";...V.."SYSTEM IS USED."...W.."...ALL
COMMANDS START IN THE SAME WAY..".E.X.Y.
10:X.10:.241:.IN,9:."SYS 50000, CO.."...
Y.."... THE FIRST BIT (.SYS 50000.) CA
LLS THE PACKAGE.".O.Z.."... THE N
EXT BIT (.CO.) IS A TWO LETTER COMMAN
D WHICH TELLS";...{.." THE 64 WHAT TO DO
."...|..238:.".":.PA,3:.BO,5:.I,6.Y.}.."
THE COMMAND IS FOLLOWED BY PARAMETERS
WHICH DECIDE HOW THE COMMAND IS";.I.~.."
TO ACT."....." YOU CAN USE A VALUE, A
VARIABLE OR A FUNCTION TO DEFINE THE P
ARAMETERS".Q....".FOR EXAMPLE...".....X.
10:Y.6:.241:.".SYS 50000,PA,15".....X.10
:Y.7 :.241:.".SYS 50000,PA,X".H...X.10:Y
.8 :.241:.".SYS 50000,PA,RND(1)"......".
.SPACES ARE IGNORED BY THE PROGRAM BUT
COMMAS MUST BE USED AS SHOWN"......"..T
HE FOLLOWING WILL BOTH WORK...".....X.10
:Y.15:.241:."SYS50000,PA,15".....X.7:Y.1
6:.241:."SYS 50000 , PA , 15".`....".
.YOU WILL SAVE SPACE IF YOU REPLACE 5000
0WITH A VARIABLE...EG X = 50000".....X.7
:Y.21:.241: .".GIVING..... .SYS X,PA,15
"......238:.BO,9:.PA,8:.IN,7.Q....".1. C
OLOUR CHANGING COMMANDS."......"........
...................."......".TO CHANGE T
HE BORDER COLOUR...".B...Y.5:X.13:.241:.
".SYS 50000,BO,CO".M...."..TO CHANGE THE
SCREEN COLOUR......".....Y.9:X.13:.241:
.".SYS 50000,PA,CO"......"..TO CHANGE TH
E INK COLOUR......".....Y.13:X.13:.241:.
".SYS 50000,IN,CO".1...."..THE COLOUR (C
O) HAS A VALUE FROM 0 TO 15 (SEE PAGE
61 OF YOUR USER";.B...."'S GUIDE.".`....
238:.PA,15:.BO,14:.IN,12......".2. MEMOR
Y CHANGING COMMANDS."......"............
................".N....".TO LOWER THE TO
P OF MEMORY..".....X.10:Y.5:.241:.".SYS
50000,HM,X"......"..TO RAISE THE START O
F BASIC..".?...X.10:Y.9:.241:.".SYS 5000
0,LM,X"......"..THIS COMMAND MUST BE FOL
LOWED BY .NEW. TO RESET THE POINTERS.".C
...."..TO CHANGE THE MEMORY BANK USED BY
THE VIC CHIP...".....X.10:Y.16:.241:.
".SYS 50000,BA,X".9...."..X HAS A VALUE
FROM 0 TO 4. TO USE THIS COMMAND PROPER
LY, YOU SHOULD ";.H. .."READ THE PROGR
AMMERS REFERENCE GUIDE.".Q....238......"
..TO MOVE THE SCREEN POSITION USE..".A..
.X.10:Y.3:.241:.".SYS 50000,SC,X"......"
..THE ADDRESS OF THE SCREEN IS GIVEN BY
V*1024+BANK OFFSET. V TAKES";.,...." T
HE VALUES 0 TO 15).".J....".AGAIN READ T
HE PROGRAMMERS GUIDE FOR FULL DETAILS
."......238:.BO,1:.PA,7:.IN,5. ....".3.
DIRECT COMMANDS"......".................
"......"..THESE COMMANDS ARE USUALLY USE
D IN TO OBTAIN INFORMATION IN DIRECT";
......" MODE.".5...."..DOUBLE POKE (DOKE
)...".\...X.10:Y.7:.241:."SYS 50000,DO,A
D,V"......".AD IS THE ADDRESS OF THE PAI
R OF MEMORY LOCATIONS (0-65535). V IS TH
E";.G...." DOKE VALUE(0-65535)"......".D
OUBLE PEEK (DEEK)...".....X.10:Y.14:.241
:."SYS 50000,DE,AD".S....".AD IS THE ADD
RESS OF THE PAIR OF MEMORY LOCATIONS (0-
65535) .EG"......".SYS 50000,DE,43 WILL
GIVE A VALUE 0F 2049."......238:.IN,1
2......".TO CONVERT A DECIMAL NUMBER (X
IN THE RANGE 0-65535) TO HEXADECIMAL..
".....X.10:Y.3:.241:."SYS 50000,HE,X".D.
..."..SYS 50000,HE,43210 GIVES THE RESUL
T.. $A8CA"......"..TO CONVERT A DECIMA
L NUMBER (X IN THE RANGE 0-65535) TO B
INARY..".....X.10:Y.11:.241:."SYS 50000,
BI,X"......"..SYS 50000,BI,43210 GIVES T
HE RESULT.. %1010100011001010"......23
8:.PA,10:.BO,2:.IN,1.7....".4. USER DEFI
NED CHARACTERS".Y...."..................
........"......"..THE FIRST STEP IS TO C
HANGE THE POINTER TO THE CHARACTER SET W
ITH..".K...X.10:Y.6:.241:.".SYS 50000,CP
,V"......".WHERE THE START ADDRESS OF TH
E CHARACTERSET IS GIVEN BY V*2048+BANK";
.@.A.." OFFSET.V HASVALUES FROM 0 TO 7)"
...B.."..YOU CAN THEN CLEAR THE NEW CHAR
ACTER SETWITH... .SYS 50000,CC".Z.C..
"..YOU CAN DOWNLOAD THE NORMAL CHARACTER
SET WITH... .SYS 50000,CO,V"...D..
"..IF V=0 THE UPPERCASE SET IS COPIED.".
3.E..".IF V=1 THE LOWERCASE SET IS COPIE
D.".<.F..238.B.G..".TO REDEFINE A CHARAC
TER USE.."...H.."... SYS 50000,AC [CH]
,A,B,C,D,E,F,G,H"...I.."..YOU MUST USE T
HE SYNTAX AS SHOWN WITH THE SQUARE BRA
CKETS AND NO COM";...J.."MA BETWEENAC AN
D THE BRACKETS.".V.K..".CH SPECIFIES WHI
CH CHARACTER IS TO BE ALTERED. THE EIG
HT FOLLOWING";.{.L.." PARAMETERS DEFINE
THE SHAPE."...M..".TO REDEFINE '@' AS A
SMALL FACE TRY..."...N.."..SYS50000,AC [
0],60,66,165,129,165,153,66,60"...O..238
...P.."..YOU CAN CHANGE THE GRAPHICS MOD
E WITH..".>.Q.X.10:Y.3:.241:.".SYS 50000
,CM,X".A.R.."..X=0 GIVES NORMAL GRAPHICS
"...S.."X=1 GIVES MULTICOLOUR MODE"...T.
."X=2 GIVES EXTENDED BACKGROUND MODE"...
U..".YOU CHANGE THE COLOUR REGISTERS WIT
H.."...V..".. SYS 50000,CL,C1,C2,C3"
.-.W.."..C1,C2 AND C3 REFER TO THE REGIS
TERS".U.X..238:.".5. MISCELLANEOUS COMMA
NDS.".V.Y.."........................."..
.Z..".TO SAVE A BLOCK OF RAM....".G...."
..SYS 50000,BS 'FILENAME',DN,2,SA,FA,F".
....."..DN = 1 FOR TAPE AND 8 FOR DISK".
....."SA = START ADDRESS".#...."FA = STA
RT ADDRESS".N...."F = 0 LEAVES BASIC ROM
SWITCHED IN.".S...."F = 1 SWITCHES BASI
C ROM OUT."......"..TO REVIEW MEMORY STA
TUS OF MACHINE..".A....". .SYS
50000,ST".U...."..FOR HELP.."......".
.SYS 50000,HP"......238."...."..T
O PLACE THE CURSOR AT X,Y".B...."..
SYS 50000,P@,X,Y".K...."..X=HORIZONTAL
POSITION (0 TO 39)"......"..Y=VERTICAL P
OSITION (0 TO 24)". ....238:."."......55
,0:.56,159......"....NEW......LOAD"G(34)
"/BASIC EXTENDER"G(34)",8.";......198,2:
.631,13:.632,131:..D...X.2:Y.23:.241:.".
P R E S S A K E Y F O R M O R E".V..
.. 197,60:.".".\.....~....781,Y:.782,X:.
783,0:.65520:....
> CLICK IMAGE PREVIEW FOR FULL MODAL