Home » Personal collection » Acorn tapes » Electron_User » Electron_User_tape07a_acorn_eu_1990_january.wav » LINKER1

LINKER1

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 tapes » Electron_User » Electron_User_tape07a_acorn_eu_1990_january.wav
Filename: LINKER1
Read OK:
File size: 044A bytes
Load address: 2000
Exec address: 1900
Duplicates

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

File contents
   10REM VDU Linker
   20REM By Mark Davidson
   30REM (c) Electron User
   40MODE6
   50CLEAR
   60code%=TOP+512
   70PROCinitialise
   80PROCmc_code
   90PROCget_data
  100PROCsave_file
  110PRINT:PRINT
  120END
  130 
  140DEF PROCinitialise
  150PRINT TAB(11,1);"* VDU Linker *"
  160PRINT TAB(0,5)"Where do you wish to store the program?"
  170INPUTTAB(0,8);"Address: &"address$
  180Address%=EVAL("&"+address$) 
  190ENDPROC
  200 
  210DEF PROCmc_code
  220FOR I=4 TO 6 STEP2
  230O%=code%:P%=Address%
  240[ OPT I
  250LDA #((data+2) MOD 256)
  260STA loop+1 
  270LDA #((data+2) DIV 256)
  280STA loop+2  
  290LDA #0
  300STA size
  310STA size+1
  320.start
  330LDA size
  340CMP data
  350BEQ p1
  360INC size
  370BNE loop
  380INC size+1
  390JMP loop
  400.p1 LDA size+1
  410CMP data+1
  420BEQ p2
  430INC size
  440BNE loop
  450INC size+1
  460.loop LDA data+2
  470JSR &FFEE
  480INC loop+1
  490BNE pass
  500INC loop+2
  510.pass JMP start
  520.p2 RTS    
  530.size EQUW 0
  540.data
  550]
  560NEXT
  570ENDPROC
  580 
  590DEF PROCget_data
  600INPUT'"Data's filename: "input$
  610line$="LOAD "+input$+" "+STR$~O%
  620OSCLI(line$)
  630ENDPROC
  640 
  650DEF PROCsave_file
  660INPUT'"Program name: "output$
  670line$="SAVE "+output$+" "+STR$~code%+" "+STR$~(O%+?O%+(256*?(O%+1))+2)+" "+STR$~Address%+" "+STR$~Address%
  680OSCLI(line$)
  690ENDPROC

� VDU Linker
� By Mark Davidson
� (c) Electron User
(�6
2�
<code%=�P+512
F�initialise
P�mc_code
Z
�get_data
d�save_file
n�:�
x�
� 
�� �initialise
�� �11,1);"* VDU Linker *"
�4� �0,5)"Where do you wish to store the program?"
��0,8);"Address: &"address$
�Address%=�("&"+address$) 
��
� 
�� �mc_code
�� I=4 � 6 �2
�O%=code%:P%=Address%
�[ OPT I
�LDA #((data+2) � 256)
STA loop+1 
LDA #((data+2) � 256)
STA loop+2  
"
LDA #0
,STA size
6STA size+1
@
.start
JLDA size
TCMP data
^
BEQ p1
hINC size
rBNE loop
|INC size+1
�JMP loop
�.p1 LDA size+1
�CMP data+1
�
BEQ p2
�INC size
�BNE loop
�INC size+1
�.loop LDA data+2
�
JSR &FFEE
�INC loop+1
�BNE pass
�INC loop+2
�.pass JMP start
.p2 RTS    
.size EQUW 0
	.data
&]
0�
:�
D 
N� �get_data
X�'"Data's filename: "input$
b!line$="LOAD "+input$+" "+�~O%
l�(line$)
v�
� 
�� �save_file
��'"Program name: "output$
�bline$="SAVE "+output$+" "+�~code%+" "+�~(O%+?O%+(256*?(O%+1))+2)+" "+�~Address%+" "+�~Address%
��(line$)
��
�
00000000  0d 00 0a 10 f4 20 56 44  55 20 4c 69 6e 6b 65 72  |..... VDU Linker|
00000010  0d 00 14 16 f4 20 42 79  20 4d 61 72 6b 20 44 61  |..... By Mark Da|
00000020  76 69 64 73 6f 6e 0d 00  1e 17 f4 20 28 63 29 20  |vidson..... (c) |
00000030  45 6c 65 63 74 72 6f 6e  20 55 73 65 72 0d 00 28  |Electron User..(|
00000040  06 eb 36 0d 00 32 05 d8  0d 00 3c 10 63 6f 64 65  |..6..2....<.code|
00000050  25 3d b8 50 2b 35 31 32  0d 00 46 0f f2 69 6e 69  |%=.P+512..F..ini|
00000060  74 69 61 6c 69 73 65 0d  00 50 0c f2 6d 63 5f 63  |tialise..P..mc_c|
00000070  6f 64 65 0d 00 5a 0d f2  67 65 74 5f 64 61 74 61  |ode..Z..get_data|
00000080  0d 00 64 0e f2 73 61 76  65 5f 66 69 6c 65 0d 00  |..d..save_file..|
00000090  6e 07 f1 3a f1 0d 00 78  05 e0 0d 00 82 05 20 0d  |n..:...x...... .|
000000a0  00 8c 11 dd 20 f2 69 6e  69 74 69 61 6c 69 73 65  |.... .initialise|
000000b0  0d 00 96 1d f1 20 8a 31  31 2c 31 29 3b 22 2a 20  |..... .11,1);"* |
000000c0  56 44 55 20 4c 69 6e 6b  65 72 20 2a 22 0d 00 a0  |VDU Linker *"...|
000000d0  34 f1 20 8a 30 2c 35 29  22 57 68 65 72 65 20 64  |4. .0,5)"Where d|
000000e0  6f 20 79 6f 75 20 77 69  73 68 20 74 6f 20 73 74  |o you wish to st|
000000f0  6f 72 65 20 74 68 65 20  70 72 6f 67 72 61 6d 3f  |ore the program?|
00000100  22 0d 00 aa 1f e8 8a 30  2c 38 29 3b 22 41 64 64  |"......0,8);"Add|
00000110  72 65 73 73 3a 20 26 22  61 64 64 72 65 73 73 24  |ress: &"address$|
00000120  0d 00 b4 1d 41 64 64 72  65 73 73 25 3d a0 28 22  |....Address%=.("|
00000130  26 22 2b 61 64 64 72 65  73 73 24 29 20 0d 00 be  |&"+address$) ...|
00000140  05 e1 0d 00 c8 05 20 0d  00 d2 0e dd 20 f2 6d 63  |...... ..... .mc|
00000150  5f 63 6f 64 65 0d 00 dc  10 e3 20 49 3d 34 20 b8  |_code..... I=4 .|
00000160  20 36 20 88 32 0d 00 e6  18 4f 25 3d 63 6f 64 65  | 6 .2....O%=code|
00000170  25 3a 50 25 3d 41 64 64  72 65 73 73 25 0d 00 f0  |%:P%=Address%...|
00000180  0b 5b 20 4f 50 54 20 49  0d 00 fa 19 4c 44 41 20  |.[ OPT I....LDA |
00000190  23 28 28 64 61 74 61 2b  32 29 20 83 20 32 35 36  |#((data+2) . 256|
000001a0  29 0d 01 04 0f 53 54 41  20 6c 6f 6f 70 2b 31 20  |)....STA loop+1 |
000001b0  0d 01 0e 19 4c 44 41 20  23 28 28 64 61 74 61 2b  |....LDA #((data+|
000001c0  32 29 20 81 20 32 35 36  29 0d 01 18 10 53 54 41  |2) . 256)....STA|
000001d0  20 6c 6f 6f 70 2b 32 20  20 0d 01 22 0a 4c 44 41  | loop+2  ..".LDA|
000001e0  20 23 30 0d 01 2c 0c 53  54 41 20 73 69 7a 65 0d  | #0..,.STA size.|
000001f0  01 36 0e 53 54 41 20 73  69 7a 65 2b 31 0d 01 40  |.6.STA size+1..@|
00000200  0a 2e 73 74 61 72 74 0d  01 4a 0c 4c 44 41 20 73  |..start..J.LDA s|
00000210  69 7a 65 0d 01 54 0c 43  4d 50 20 64 61 74 61 0d  |ize..T.CMP data.|
00000220  01 5e 0a 42 45 51 20 70  31 0d 01 68 0c 49 4e 43  |.^.BEQ p1..h.INC|
00000230  20 73 69 7a 65 0d 01 72  0c 42 4e 45 20 6c 6f 6f  | size..r.BNE loo|
00000240  70 0d 01 7c 0e 49 4e 43  20 73 69 7a 65 2b 31 0d  |p..|.INC size+1.|
00000250  01 86 0c 4a 4d 50 20 6c  6f 6f 70 0d 01 90 12 2e  |...JMP loop.....|
00000260  70 31 20 4c 44 41 20 73  69 7a 65 2b 31 0d 01 9a  |p1 LDA size+1...|
00000270  0e 43 4d 50 20 64 61 74  61 2b 31 0d 01 a4 0a 42  |.CMP data+1....B|
00000280  45 51 20 70 32 0d 01 ae  0c 49 4e 43 20 73 69 7a  |EQ p2....INC siz|
00000290  65 0d 01 b8 0c 42 4e 45  20 6c 6f 6f 70 0d 01 c2  |e....BNE loop...|
000002a0  0e 49 4e 43 20 73 69 7a  65 2b 31 0d 01 cc 14 2e  |.INC size+1.....|
000002b0  6c 6f 6f 70 20 4c 44 41  20 64 61 74 61 2b 32 0d  |loop LDA data+2.|
000002c0  01 d6 0d 4a 53 52 20 26  46 46 45 45 0d 01 e0 0e  |...JSR &FFEE....|
000002d0  49 4e 43 20 6c 6f 6f 70  2b 31 0d 01 ea 0c 42 4e  |INC loop+1....BN|
000002e0  45 20 70 61 73 73 0d 01  f4 0e 49 4e 43 20 6c 6f  |E pass....INC lo|
000002f0  6f 70 2b 32 0d 01 fe 13  2e 70 61 73 73 20 4a 4d  |op+2.....pass JM|
00000300  50 20 73 74 61 72 74 0d  02 08 0f 2e 70 32 20 52  |P start.....p2 R|
00000310  54 53 20 20 20 20 0d 02  12 10 2e 73 69 7a 65 20  |TS    .....size |
00000320  45 51 55 57 20 30 0d 02  1c 09 2e 64 61 74 61 0d  |EQUW 0.....data.|
00000330  02 26 05 5d 0d 02 30 05  ed 0d 02 3a 05 e1 0d 02  |.&.]..0....:....|
00000340  44 05 20 0d 02 4e 0f dd  20 f2 67 65 74 5f 64 61  |D. ..N.. .get_da|
00000350  74 61 0d 02 58 1f e8 27  22 44 61 74 61 27 73 20  |ta..X..'"Data's |
00000360  66 69 6c 65 6e 61 6d 65  3a 20 22 69 6e 70 75 74  |filename: "input|
00000370  24 0d 02 62 21 6c 69 6e  65 24 3d 22 4c 4f 41 44  |$..b!line$="LOAD|
00000380  20 22 2b 69 6e 70 75 74  24 2b 22 20 22 2b c3 7e  | "+input$+" "+.~|
00000390  4f 25 0d 02 6c 0c ff 28  6c 69 6e 65 24 29 0d 02  |O%..l..(line$)..|
000003a0  76 05 e1 0d 02 80 05 20  0d 02 8a 10 dd 20 f2 73  |v...... ..... .s|
000003b0  61 76 65 5f 66 69 6c 65  0d 02 94 1d e8 27 22 50  |ave_file.....'"P|
000003c0  72 6f 67 72 61 6d 20 6e  61 6d 65 3a 20 22 6f 75  |rogram name: "ou|
000003d0  74 70 75 74 24 0d 02 9e  62 6c 69 6e 65 24 3d 22  |tput$...bline$="|
000003e0  53 41 56 45 20 22 2b 6f  75 74 70 75 74 24 2b 22  |SAVE "+output$+"|
000003f0  20 22 2b c3 7e 63 6f 64  65 25 2b 22 20 22 2b c3  | "+.~code%+" "+.|
00000400  7e 28 4f 25 2b 3f 4f 25  2b 28 32 35 36 2a 3f 28  |~(O%+?O%+(256*?(|
00000410  4f 25 2b 31 29 29 2b 32  29 2b 22 20 22 2b c3 7e  |O%+1))+2)+" "+.~|
00000420  41 64 64 72 65 73 73 25  2b 22 20 22 2b c3 7e 41  |Address%+" "+.~A|
00000430  64 64 72 65 73 73 25 0d  02 a8 0c ff 28 6c 69 6e  |ddress%.....(lin|
00000440  65 24 29 0d 02 b2 05 e1  0d ff                    |e$).......|
0000044a
LINKER1.m0
LINKER1.m1
LINKER1.m2
LINKER1.m4
LINKER1.m5