Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_51.ADF » U/SCROLL1

U/SCROLL1

This website contains an archive of files for the Acorn Electron, BBC Micro, Acorn Archimedes, Commodore 16 and Commodore 64 computers, which Dominic Ford has rescued from his private collection of floppy disks and cassettes.

Some of these files were originally commercial releases in the 1980s and 1990s, but they are now widely available online. I assume that copyright over them is no longer being asserted. If you own the copyright and would like files to be removed, please contact me.

Tape/disk: Home » Personal collection » Acorn ADFS disks » Electron_User_Group » EUG_51.ADF
Filename: U/SCROLL1
Read OK:
File size: 0483 bytes
Load address: FFFF0E00
Exec address: FFFF802B
Duplicates

There are 2 duplicate copies of this file in the archive:

File contents
   10REM
   20REM"�1 Pixel Full Width Scroller
   30REM"�By�The Welder/Faith^Darkage
   40REM"�Faith Productions�1998
   50PROCread:PROCasm:MODE4:VDU23,1,0;0;0;0;19,0,4;0;:CALLQ%:END
   60DEFPROCasm:DIMQ%150:LOCALI%,P%:FORI%=0TO2STEP2:P%=Q%:[OPTI%:LDA#0:LDX#7:.lp1 STA&76,X:DEX:BPLlp1:LDA#8:STA&74:LDX#T% MOD256:LDY#T% DIV256:STX&70:STY&71:LDX#int MOD256:LDY#int DIV256:SEI:STX&220:STY&221:CLI:LDA#14:LDX#4:LDY#0:JMP&FFF4
   70.int PHP:PHA:TXA:PHA:TYA:PHA:LDY&74:DEY:BNEscroll:.end LDA(&70),Y:BNEchar:LDA#T% MOD256:STA&70:LDA#T% DIV256:STA&71:JMPend:.char STA&75:INC&70:BNEnohi:INC&71:.nohi LDA#10:LDX#&75:LDY#0:JSR&FFF1:LDY#8:.scroll STY&74
   80LDY#7:.lp2 LDA#&78:STA&72:LDA#&69:STA&73:LDA&76,Y:ASLA:STA&76,Y:LDX#39:.lp3 LDA(&72),Y:ROLA:STA(&72),Y:PHP:LDA&72:SEC:SBC#8:STA&72:BCSlow:DEC&73:.low PLP:DEX:BPLlp3:DEY:BPLlp2:PLA:TAY:PLA:TAX:PLA:PLP:RTS:]:NEXT:ENDPROC
   90DEFPROCread:DIMT%2048:LOCALA%,B%,C%,A$:RESTORE100:A%=T%:READB%:FORC%=1TOB%:READA$:FORB%=1TOLEN(A$):?A%=ASC(MID$(A$,B%,1)):A%=A%+1:NEXT,:?A%=0:ENDPROC
  100DATA 4
  110DATA "This is The Welder of Faith typing here "
  120DATA "for your extreme pleasure.  This is a 1 "
  130DATA "pixel scroller using a machine code rotation "
  140DATA "to get pixel accuracy.  Note also that this scroller is full screen width!!                "

�
"�"�1 Pixel Full Width Scroller
"�"�By�The Welder/Faith^Darkage
(�"�Faith Productions�1998
2/�read:�asm:�4:�23,1,0;0;0;0;19,0,4;0;:�Q%:�
<���asm:�Q%150:�I%,P%:�I%=0�2�2:P%=Q%:[OPTI%:LDA#0:LDX#7:.lp1 STA&76,X:DEX:BPLlp1:LDA#8:STA&74:LDX#T% �256:LDY#T% �256:STX&70:STY&71:LDX#int �256:LDY#int �256:SEI:STX&220:STY&221:CLI:LDA#14:LDX#4:LDY#0:JMP&FFF4
F�.int PHP:PHA:TXA:PHA:TYA:PHA:LDY&74:DEY:BNEscroll:.end LDA(&70),Y:BNEchar:LDA#T% �256:STA&70:LDA#T% �256:STA&71:JMPend:.char STA&75:INC&70:BNEnohi:INC&71:.nohi LDA#10:LDX#&75:LDY#0:JSR&FFF1:LDY#8:.scroll STY&74
P�LDY#7:.lp2 LDA#&78:STA&72:LDA#&69:STA&73:LDA&76,Y:ASLA:STA&76,Y:LDX#39:.lp3 LDA(&72),Y:ROLA:STA(&72),Y:PHP:LDA&72:SEC:SBC#8:STA&72:BCSlow:DEC&73:.low PLP:DEX:BPLlp3:DEY:BPLlp2:PLA:TAY:PLA:TAX:PLA:PLP:RTS:]:�:�
Zl��read:�T%2048:�A%,B%,C%,A$:��Dd@:A%=T%:�B%:�C%=1�B%:�A$:�B%=1��(A$):?A%=�(�A$,B%,1)):A%=A%+1:�,:?A%=0:�
d� 4
n0� "This is The Welder of Faith typing here "
x0� "for your extreme pleasure.  This is a 1 "
�5� "pixel scroller using a machine code rotation "
�c� "to get pixel accuracy.  Note also that this scroller is full screen width!!                "
�
00000000  0d 00 0a 07 f4 16 07 0d  00 14 22 f4 22 85 31 20  |..........".".1 |
00000010  50 69 78 65 6c 20 46 75  6c 6c 20 57 69 64 74 68  |Pixel Full Width|
00000020  20 53 63 72 6f 6c 6c 65  72 0d 00 1e 22 f4 22 81  | Scroller...".".|
00000030  42 79 83 54 68 65 20 57  65 6c 64 65 72 2f 46 61  |By.The Welder/Fa|
00000040  69 74 68 5e 44 61 72 6b  61 67 65 0d 00 28 1d f4  |ith^Darkage..(..|
00000050  22 84 46 61 69 74 68 20  50 72 6f 64 75 63 74 69  |".Faith Producti|
00000060  6f 6e 73 82 31 39 39 38  0d 00 32 2f f2 72 65 61  |ons.1998..2/.rea|
00000070  64 3a f2 61 73 6d 3a eb  34 3a ef 32 33 2c 31 2c  |d:.asm:.4:.23,1,|
00000080  30 3b 30 3b 30 3b 30 3b  31 39 2c 30 2c 34 3b 30  |0;0;0;0;19,0,4;0|
00000090  3b 3a d6 51 25 3a e0 0d  00 3c d4 dd f2 61 73 6d  |;:.Q%:...<...asm|
000000a0  3a de 51 25 31 35 30 3a  ea 49 25 2c 50 25 3a e3  |:.Q%150:.I%,P%:.|
000000b0  49 25 3d 30 b8 32 88 32  3a 50 25 3d 51 25 3a 5b  |I%=0.2.2:P%=Q%:[|
000000c0  4f 50 54 49 25 3a 4c 44  41 23 30 3a 4c 44 58 23  |OPTI%:LDA#0:LDX#|
000000d0  37 3a 2e 6c 70 31 20 53  54 41 26 37 36 2c 58 3a  |7:.lp1 STA&76,X:|
000000e0  44 45 58 3a 42 50 4c 6c  70 31 3a 4c 44 41 23 38  |DEX:BPLlp1:LDA#8|
000000f0  3a 53 54 41 26 37 34 3a  4c 44 58 23 54 25 20 83  |:STA&74:LDX#T% .|
00000100  32 35 36 3a 4c 44 59 23  54 25 20 81 32 35 36 3a  |256:LDY#T% .256:|
00000110  53 54 58 26 37 30 3a 53  54 59 26 37 31 3a 4c 44  |STX&70:STY&71:LD|
00000120  58 23 69 6e 74 20 83 32  35 36 3a 4c 44 59 23 69  |X#int .256:LDY#i|
00000130  6e 74 20 81 32 35 36 3a  53 45 49 3a 53 54 58 26  |nt .256:SEI:STX&|
00000140  32 32 30 3a 53 54 59 26  32 32 31 3a 43 4c 49 3a  |220:STY&221:CLI:|
00000150  4c 44 41 23 31 34 3a 4c  44 58 23 34 3a 4c 44 59  |LDA#14:LDX#4:LDY|
00000160  23 30 3a 4a 4d 50 26 46  46 46 34 0d 00 46 d6 2e  |#0:JMP&FFF4..F..|
00000170  69 6e 74 20 50 48 50 3a  50 48 41 3a 54 58 41 3a  |int PHP:PHA:TXA:|
00000180  50 48 41 3a 54 59 41 3a  50 48 41 3a 4c 44 59 26  |PHA:TYA:PHA:LDY&|
00000190  37 34 3a 44 45 59 3a 42  4e 45 73 63 72 6f 6c 6c  |74:DEY:BNEscroll|
000001a0  3a 2e 65 6e 64 20 4c 44  41 28 26 37 30 29 2c 59  |:.end LDA(&70),Y|
000001b0  3a 42 4e 45 63 68 61 72  3a 4c 44 41 23 54 25 20  |:BNEchar:LDA#T% |
000001c0  83 32 35 36 3a 53 54 41  26 37 30 3a 4c 44 41 23  |.256:STA&70:LDA#|
000001d0  54 25 20 81 32 35 36 3a  53 54 41 26 37 31 3a 4a  |T% .256:STA&71:J|
000001e0  4d 50 65 6e 64 3a 2e 63  68 61 72 20 53 54 41 26  |MPend:.char STA&|
000001f0  37 35 3a 49 4e 43 26 37  30 3a 42 4e 45 6e 6f 68  |75:INC&70:BNEnoh|
00000200  69 3a 49 4e 43 26 37 31  3a 2e 6e 6f 68 69 20 4c  |i:INC&71:.nohi L|
00000210  44 41 23 31 30 3a 4c 44  58 23 26 37 35 3a 4c 44  |DA#10:LDX#&75:LD|
00000220  59 23 30 3a 4a 53 52 26  46 46 46 31 3a 4c 44 59  |Y#0:JSR&FFF1:LDY|
00000230  23 38 3a 2e 73 63 72 6f  6c 6c 20 53 54 59 26 37  |#8:.scroll STY&7|
00000240  34 0d 00 50 d5 4c 44 59  23 37 3a 2e 6c 70 32 20  |4..P.LDY#7:.lp2 |
00000250  4c 44 41 23 26 37 38 3a  53 54 41 26 37 32 3a 4c  |LDA#&78:STA&72:L|
00000260  44 41 23 26 36 39 3a 53  54 41 26 37 33 3a 4c 44  |DA#&69:STA&73:LD|
00000270  41 26 37 36 2c 59 3a 41  53 4c 41 3a 53 54 41 26  |A&76,Y:ASLA:STA&|
00000280  37 36 2c 59 3a 4c 44 58  23 33 39 3a 2e 6c 70 33  |76,Y:LDX#39:.lp3|
00000290  20 4c 44 41 28 26 37 32  29 2c 59 3a 52 4f 4c 41  | LDA(&72),Y:ROLA|
000002a0  3a 53 54 41 28 26 37 32  29 2c 59 3a 50 48 50 3a  |:STA(&72),Y:PHP:|
000002b0  4c 44 41 26 37 32 3a 53  45 43 3a 53 42 43 23 38  |LDA&72:SEC:SBC#8|
000002c0  3a 53 54 41 26 37 32 3a  42 43 53 6c 6f 77 3a 44  |:STA&72:BCSlow:D|
000002d0  45 43 26 37 33 3a 2e 6c  6f 77 20 50 4c 50 3a 44  |EC&73:.low PLP:D|
000002e0  45 58 3a 42 50 4c 6c 70  33 3a 44 45 59 3a 42 50  |EX:BPLlp3:DEY:BP|
000002f0  4c 6c 70 32 3a 50 4c 41  3a 54 41 59 3a 50 4c 41  |Llp2:PLA:TAY:PLA|
00000300  3a 54 41 58 3a 50 4c 41  3a 50 4c 50 3a 52 54 53  |:TAX:PLA:PLP:RTS|
00000310  3a 5d 3a ed 3a e1 0d 00  5a 6c dd f2 72 65 61 64  |:]:.:...Zl..read|
00000320  3a de 54 25 32 30 34 38  3a ea 41 25 2c 42 25 2c  |:.T%2048:.A%,B%,|
00000330  43 25 2c 41 24 3a f7 8d  44 64 40 3a 41 25 3d 54  |C%,A$:..Dd@:A%=T|
00000340  25 3a f3 42 25 3a e3 43  25 3d 31 b8 42 25 3a f3  |%:.B%:.C%=1.B%:.|
00000350  41 24 3a e3 42 25 3d 31  b8 a9 28 41 24 29 3a 3f  |A$:.B%=1..(A$):?|
00000360  41 25 3d 97 28 c1 41 24  2c 42 25 2c 31 29 29 3a  |A%=.(.A$,B%,1)):|
00000370  41 25 3d 41 25 2b 31 3a  ed 2c 3a 3f 41 25 3d 30  |A%=A%+1:.,:?A%=0|
00000380  3a e1 0d 00 64 07 dc 20  34 0d 00 6e 30 dc 20 22  |:...d.. 4..n0. "|
00000390  54 68 69 73 20 69 73 20  54 68 65 20 57 65 6c 64  |This is The Weld|
000003a0  65 72 20 6f 66 20 46 61  69 74 68 20 74 79 70 69  |er of Faith typi|
000003b0  6e 67 20 68 65 72 65 20  22 0d 00 78 30 dc 20 22  |ng here "..x0. "|
000003c0  66 6f 72 20 79 6f 75 72  20 65 78 74 72 65 6d 65  |for your extreme|
000003d0  20 70 6c 65 61 73 75 72  65 2e 20 20 54 68 69 73  | pleasure.  This|
000003e0  20 69 73 20 61 20 31 20  22 0d 00 82 35 dc 20 22  | is a 1 "...5. "|
000003f0  70 69 78 65 6c 20 73 63  72 6f 6c 6c 65 72 20 75  |pixel scroller u|
00000400  73 69 6e 67 20 61 20 6d  61 63 68 69 6e 65 20 63  |sing a machine c|
00000410  6f 64 65 20 72 6f 74 61  74 69 6f 6e 20 22 0d 00  |ode rotation "..|
00000420  8c 63 dc 20 22 74 6f 20  67 65 74 20 70 69 78 65  |.c. "to get pixe|
00000430  6c 20 61 63 63 75 72 61  63 79 2e 20 20 4e 6f 74  |l accuracy.  Not|
00000440  65 20 61 6c 73 6f 20 74  68 61 74 20 74 68 69 73  |e also that this|
00000450  20 73 63 72 6f 6c 6c 65  72 20 69 73 20 66 75 6c  | scroller is ful|
00000460  6c 20 73 63 72 65 65 6e  20 77 69 64 74 68 21 21  |l screen width!!|
00000470  20 20 20 20 20 20 20 20  20 20 20 20 20 20 20 20  |                |
00000480  22 0d ff                                          |"..|
00000483
U/SCROLL1.m0
U/SCROLL1.m1
U/SCROLL1.m2
U/SCROLL1.m4
U/SCROLL1.m5