UDG DEMO.@
FILE INFORMATION
FILENAME(S): UDG DEMO.@
FILE TYPE(S): PRG
FILE SIZE: 4.3K
FIRST SEEN: 2025-11-30 21:12:53
APPEARS ON: 1 disk(s)
FILE HASH
00d3b1cc72752590a7667e7c5e04ddd4fb838528f9247314db73faf0d7e52c98
FOUND ON DISKS (1 DISKS)
| DISK TITLE | FILENAME | FILE TYPE | COLLECTION | TRACK | SECTOR | ACTIONS |
|---|---|---|---|---|---|---|
| 64TAPE COMP UK 4 | UDG DEMO.@ | PRG | DuncanTwain | 10 | 1 | DOWNLOAD FILE |
FILE CONTENT & ANALYSIS
> DETECTED: COMMODORE BASIC PROGRAM (LOAD ADDRESS $0801)
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00000E30: 2C 32 35 35 2C 32 35 35 2C 32 35 35 2C 32 35 35 |,255,255,255,255|
00000E40: 00 65 16 C7 00 83 32 35 35 2C 32 35 35 2C 32 35 |.e....255,255,25|
00000E50: 35 2C 32 35 35 2C 32 35 35 2C 32 35 35 2C 32 35 |5,255,255,255,25|
00000E60: 35 2C 32 35 35 00 72 16 C8 00 8F 42 4C 4F 43 4B |5,255.r....BLOCK|
00000E70: 23 32 00 97 16 C9 00 83 32 35 35 2C 32 35 35 2C |#2......255,255,|
00000E80: 32 35 35 2C 32 35 35 2C 32 35 35 2C 32 35 35 2C |255,255,255,255,|
00000E90: 32 35 35 2C 32 35 35 00 BC 16 CA 00 83 32 35 35 |255,255......255|
00000EA0: 2C 32 35 35 2C 32 35 35 2C 32 35 35 2C 32 35 35 |,255,255,255,255|
00000EB0: 2C 32 35 35 2C 32 35 35 2C 32 35 35 00 D2 16 CB |,255,255,255....|
00000EC0: 00 83 30 2C 30 2C 30 2C 33 32 2C 30 2C 30 2C 30 |..0,0,0,32,0,0,0|
00000ED0: 2C 30 00 E9 16 CC 00 83 30 2C 30 2C 30 2C 30 2C |,0......0,0,0,0,|
00000EE0: 30 2C 30 2C 30 2C 32 34 32 00 FE 16 CD 00 83 30 |0,0,0,242......0|
00000EF0: 2C 30 2C 30 2C 30 2C 30 2C 30 2C 30 2C 30 00 13 |,0,0,0,0,0,0,0..|
00000F00: 17 CE 00 83 30 2C 30 2C 30 2C 30 2C 30 2C 30 2C |....0,0,0,0,0,0,|
00000F10: 30 2C 30 00 38 17 CF 00 83 32 35 35 2C 31 32 37 |0,0.8....255,127|
00000F20: 2C 32 35 35 2C 32 35 35 2C 32 35 35 2C 32 35 35 |,255,255,255,255|
00000F30: 2C 32 35 35 2C 32 34 37 00 5D 17 D0 00 83 32 35 |,255,247.]....25|
00000F40: 31 2C 32 35 35 2C 32 35 35 2C 32 35 35 2C 32 33 |1,255,255,255,23|
00000F50: 39 2C 32 35 31 2C 32 35 35 2C 32 32 33 00 82 17 |9,251,255,223...|
00000F60: D1 00 83 32 35 35 2C 32 35 35 2C 32 35 31 2C 32 |...255,255,251,2|
00000F70: 35 35 2C 32 35 35 2C 32 35 35 2C 32 35 35 2C 32 |55,255,255,255,2|
00000F80: 35 35 00 8F 17 D2 00 8F 42 4C 4F 43 4B 23 33 00 |55......BLOCK#3.|
00000F90: B4 17 D3 00 83 32 35 35 2C 32 35 35 2C 32 35 35 |.....255,255,255|
00000FA0: 2C 32 35 35 2C 32 35 35 2C 32 35 35 2C 32 35 31 |,255,255,255,251|
00000FB0: 2C 32 35 35 00 C9 17 D4 00 83 30 2C 30 2C 38 2C |,255......0,0,8,|
00000FC0: 30 2C 30 2C 30 2C 30 2C 30 00 DE 17 D5 00 83 30 |0,0,0,0,0......0|
00000FD0: 2C 30 2C 30 2C 30 2C 30 2C 30 2C 30 2C 30 00 F3 |,0,0,0,0,0,0,0..|
00000FE0: 17 D6 00 83 30 2C 30 2C 30 2C 30 2C 30 2C 30 2C |....0,0,0,0,0,0,|
00000FF0: 30 2C 30 00 0B 18 D7 00 83 30 2C 30 2C 30 2C 30 |0,0......0,0,0,0|
00001000: 2C 31 32 37 2C 30 2C 33 33 2C 30 00 2D 18 D8 00 |,127,0,33,0.-...|
00001010: 83 33 32 2C 32 35 33 2C 31 37 34 2C 33 32 2C 32 |.32,253,174,32,2|
00001020: 33 35 2C 31 38 33 2C 31 33 32 2C 39 31 00 4D 18 |35,183,132,91.M.|
00001030: D9 00 83 31 33 33 2C 39 32 2C 31 36 30 2C 33 2C |...133,92,160,3,|
00001040: 31 36 35 2C 32 30 2C 31 33 33 2C 38 38 00 6C 18 |165,20,133,88.l.|
00001050: DA 00 83 31 36 35 2C 32 31 2C 31 33 33 2C 38 39 |...165,21,133,89|
00001060: 2C 31 33 34 2C 39 30 2C 32 34 2C 36 00 8E 18 DB |,134,90,24,6....|
00001070: 00 83 38 38 2C 33 38 2C 38 39 2C 31 33 36 2C 32 |..88,38,89,136,2|
00001080: 30 38 2C 32 34 38 2C 31 36 39 2C 31 37 36 00 9B |08,248,169,176..|
00001090: 18 DC 00 8F 42 4C 4F 43 4B 23 34 00 BD 18 DD 00 |....BLOCK#4.....|
000010A0: 83 32 34 2C 31 30 31 2C 38 39 2C 31 33 33 2C 38 |.24,101,89,133,8|
000010B0: 39 2C 32 30 31 2C 31 39 31 2C 31 34 34 00 DB 18 |9,201,191,144...|
000010C0: DE 00 83 33 2C 37 36 2C 37 32 2C 31 37 38 2C 31 |...3,76,72,178,1|
000010D0: 36 39 2C 30 2C 31 33 33 2C 38 37 00 FB 18 DF 00 |69,0,133,87.....|
000010E0: 83 31 36 35 2C 39 30 2C 31 36 34 2C 38 37 2C 31 |.165,90,164,87,1|
000010F0: 34 35 2C 38 38 2C 31 36 32 2C 30 00 1D 19 E0 00 |45,88,162,0.....|
00001100: 83 31 36 34 2C 39 31 2C 31 36 35 2C 39 32 2C 33 |.164,91,165,92,3|
00001110: 32 2C 32 34 31 2C 31 38 33 2C 31 33 34 00 3D 19 |2,241,183,134.=.|
00001120: E1 00 83 39 30 2C 32 33 30 2C 38 37 2C 31 36 35 |...90,230,87,165|
00001130: 2C 38 37 2C 32 30 31 2C 37 2C 32 30 38 00 5E 19 |,87,201,7,208.^.|
00001140: E2 00 83 32 33 31 2C 31 36 35 2C 39 30 2C 31 36 |...231,165,90,16|
00001150: 34 2C 38 37 2C 31 34 35 2C 38 38 2C 39 36 00 00 |4,87,145,88,96..|
00001160: 00 |. |
.. .D.."..COMMODORE 64 UTILITIES.=.E..".
......................Y.F..53280,9:.5328
1,7:."...ALTERING CHARACTERS ... PART TW
O...G.."..PLEASE HANG ON WHILE ALL THE D
ATA IS BEING READ IN."...H..I.0.71:.A
:B.B.A:.49152.I,A:....I..B..8515.."ERROR
IN BLOCK #0":..#.J..I.72.143:.A:C.C.A:.
49152.I,A:..G.K..C..7732.."ERROR IN BLOC
K #1":..L.L..I.144.215:.A:D.D.A:.49152.I
,A:....M..D..10278.."ERROR IN BLOCK #2":
....N..I.216.287:.A:E.E.A:.49152.I,A:..Z
.O..E..5944.."ERROR IN BLOCK #3":....P..
I.288.335:.A:F.F.A:.49152.I,A:..#.Q..F..
5834.."ERROR IN BLOCK #4":..[.R.."..DATA
ENTERED CORRECTLY AND CODE NOW IN PLAC
E."...S.."..PRESS 'SPACE' FOR INSTRUCTIO
NS."...T..177...U..".TO USE THIS ROUTINE
, FIRST OF ALL ENTER:.M.V.."SYS 49152...
W..".WHICH COPIES ALL THE CHARACTER ROM
INTO RAM, AND SETS UP 'USER DEFINED";.?.
X.." CHARACTER' MODE.".G.Y..".T
HEN, TO ALTER A CHARACTER, USE:...Z..".S
YS 49408,NO,A,B,C,D,E,F,G,H.X.{..".HERE,
'NO' REFERS TO THE CHARACTER NUMBE
R, AND THE LETTERS A-H";...|.." REFER TO
EACH ROW OF PIXELS MAKING UP THE
CHARACTER.".?.}..".PRESS 'SPACE' FOR
MORE.".O.~..177:.49152.....".THUS, TO
TURN THE '@' KEY INTO AN ALIEN,TYPE :...
..."..SYS 49408,0,24,60,126,255,24,36,66
,129.D....I.1.2000:.......49408,0,24,60,
126,255,24,36,66,129......".SEE? TO GET
IT BACK AGAIN, TYPE:".B...."..SYS 49408
,0,60,102,110,110,96,98,60.R....I.1.2000
:..Y....49408,0,60,102,110,110,96,98,60,
0......".PRESS 'SPACE' FOR A FEW RULES..
.....177......".THIS PROGRAM LEAVES YOU
29K OF USEABLE MEMORY."......".JUST NOT
E THE FOLLOWING:.B....".1) SCREEN MEMORY
STARTS AT LOCATION 32768, NOT 10
24......"2) SPRITE POINTERS LIVE AT 3378
4-33791, NOT 2040-2047......"3) SPRIT
ES CAN BE STORED FROM 33792- 40959
.Q....".SO, HAVE FUN ..."......".'_' LET
S YOU LOOK AT THE RULES AGAIN."......"'S
PACE' CARRIES ON ..../....A$:.A$."".145.
?....A$."_".117.P....A$.." ".145. ....".
REMEMBER THIS ONE? SOME PEOPLE HAVE
ASKED HOW THEY MIGHT USE THIS ";......"L
ITTLE UTILITY IN THEIR OWN PROGRAMS.
WELL, ONEWAY IS AS FOLLOWS .........I.1.
5000:..#....I.0.239:.32768.I,0:.55296.I,
0:..M....49408,0,24,60,90,255,102,102,19
5,195.]....I.1.2000:.......53281,5:.".YO
U SEE .. WE CAN CHANGE EVERY CHARACTERIN
STANTLY, ";.E...."USING JUST ONE 'SYS' C
ALL."......".THIS HAS MORE USES THAN YOU
MIGHT AT FIRST IMAGINE. FOR EXAMPLE
....=....".CONSIDER THIS ROW OF CHARACT
ERS:-.M....".@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@......".@@@@@@@@@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@.M. ..".@@@@@@@@@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@......".@@@
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@.-.
...".@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@@@@@.=....I.1.5000:..J....49408,0,255,2
55,255,255,255,255,255,255.V....I.0.25..
....J.1.150:.J.....A.I.10:.49408,0,A,A,A
,A,A,A,A,A......J.1.150:.J.A....I......"
.PRESS 'SPACE' TO CONINUE.":.177.5....".
SO, THE BASIC IDEA THEN IS THAT WE CAN
ALTER EVERY OCCURENCE OF A ";.H...."PART
ICULAR CHARACTER INSTANTLY. GO TO IT!
......".YOU'LL NOW HAVE TO RE-SET THE 64
BEFORE.C...."LOADING SIDE TWO, SINCE WE
'VE LEFT IT......"IN A RATHER UNUSUAL ST
ATE ...............I.1.10:.SP$:.......SP
$:.SP$.." ".178.......*....BLOCK#0.K....
169,0,133,87,169,208,133,88.L....169,0,1
33,89,169,176,133,90......173,14,220,41,
254,141,14,220......165,1,41,251,133,1,1
60,0.M....177,87,145,89,24,165,87,105...
...1,133,87,133,89,144,241,230......88,2
30,90,165,88,201,224,208.-....231,165,1,
9,4,133,1,173.L....14,220,9,1,141,14,220
,173.Y....BLOCK#1.V....2,221,9,3,141,2,2
21,173......0,221,41,252,9,1,141,0...A..
221,169,128,141,136,2,133,56.U.B..133,52
,169,12,141,24,208,32...C..68,229,96,0,0
,0,0,0...D..0,0,0,0,0,0,0,0...E..0,0,0,0
,127,0,33,0.@.F..160,255,255,255,255,255
,255,255.E.G..255,255,255,255,255,255,25
5,255.R.H..BLOCK#2...I..255,255,255,255,
255,255,255,255...J..255,255,255,255,255
,255,255,255.R.K..0,0,0,32,0,0,0,0...L..
0,0,0,0,0,0,0,242...M..0,0,0,0,0,0,0,0..
.N..0,0,0,0,0,0,0,0.8.O..255,127,255,255
,255,255,255,247.].P..251,255,255,255,23
9,251,255,223...Q..255,255,251,255,255,2
55,255,255...R..BLOCK#3...S..255,255,255
,255,255,255,251,255.I.T..0,0,8,0,0,0,0,
0...U..0,0,0,0,0,0,0,0...V..0,0,0,0,0,0,
0,0...W..0,0,0,0,127,0,33,0.-.X..32,253,
174,32,235,183,132,91.M.Y..133,92,160,3,
165,20,133,88.L.Z..165,21,133,89,134,90,
24,6......88,38,89,136,208,248,169,176..
....BLOCK#4......24,101,89,133,89,201,19
1,144......3,76,72,178,169,0,133,87.....
.165,90,164,87,145,88,162,0......164,91,
165,92,32,241,183,134.=....90,230,87,165
,87,201,7,208.^....231,165,90,164,87,145
,88,96...
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