Home » CEEFAX disks » telesoftware12.adl » 20-01-89/T\Break
20-01-89/T\Break
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 » CEEFAX disks » telesoftware12.adl |
| Filename: | 20-01-89/T\Break |
| Read OK: | ✔ |
| File size: | 04CF bytes |
| Load address: | 0000 |
| Exec address: | FFFFFFFF |
File contents
Break Disable Utility v.2
*BREAK <ON/OFF>
This program enables a program to be kept running, even if
<CTRL><BREAK> is pressed. It has been found very useful by
teachers during school demonstrations etc.
The <BREAK> key can be disabled using *BREAK OFF
The <BREAK> key can be enabled using *BREAK ON
( or use *FX247 0 to enable )
It is essential that your program contains an ONERROR
statement. The following is a simple demo program :
10 ONERROR RUN
20 P." This is a demo"
30 IF INKEY(-1) THEN GOTO 50
40 GOTO 20
50 *FX 247 0
60 END
Once this program has been entered type *BREAK OFF and run
the program. Pressing <BREAK> will not stop the program but
will carry out the instruction contained in the ONERROR
statement.
( To escape from demo press <SHIFT> )
The routine will work with a BBC model B or B+, but does not
operate on a Master computer.
00000000 0d 20 20 20 20 20 20 20 20 20 0d 20 20 20 20 20 |. . | 00000010 20 20 20 42 72 65 61 6b 20 44 69 73 61 62 6c 65 | Break Disable| 00000020 20 55 74 69 6c 69 74 79 20 20 20 20 20 20 20 20 | Utility | 00000030 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000040 20 20 20 20 20 20 20 20 20 20 76 2e 32 20 0d 20 | v.2 . | 00000050 20 20 20 20 20 20 20 20 0d 20 20 20 20 20 20 20 | . | 00000060 20 2a 42 52 45 41 4b 20 3c 4f 4e 2f 4f 46 46 3e | *BREAK <ON/OFF>| 00000070 20 0d 20 20 20 20 20 20 20 20 20 0d 20 20 20 20 | . . | 00000080 20 20 20 20 54 68 69 73 20 70 72 6f 67 72 61 6d | This program| 00000090 20 65 6e 61 62 6c 65 73 20 61 20 70 72 6f 67 72 | enables a progr| 000000a0 61 6d 20 74 6f 20 62 65 20 6b 65 70 74 20 20 72 |am to be kept r| 000000b0 75 6e 6e 69 6e 67 2c 20 20 65 76 65 6e 20 20 69 |unning, even i| 000000c0 66 20 0d 20 20 20 20 20 20 20 20 3c 43 54 52 4c |f . <CTRL| 000000d0 3e 3c 42 52 45 41 4b 3e 20 20 69 73 20 20 70 72 |><BREAK> is pr| 000000e0 65 73 73 65 64 2e 20 20 49 74 20 68 61 73 20 62 |essed. It has b| 000000f0 65 65 6e 20 66 6f 75 6e 64 20 76 65 72 79 20 75 |een found very u| 00000100 73 65 66 75 6c 20 62 79 20 0d 20 20 20 20 20 20 |seful by . | 00000110 20 20 74 65 61 63 68 65 72 73 20 64 75 72 69 6e | teachers durin| 00000120 67 20 73 63 68 6f 6f 6c 20 64 65 6d 6f 6e 73 74 |g school demonst| 00000130 72 61 74 69 6f 6e 73 20 65 74 63 2e 20 0d 20 20 |rations etc. . | 00000140 20 20 20 20 20 20 20 0d 20 20 20 20 20 20 20 20 | . | 00000150 54 68 65 20 3c 42 52 45 41 4b 3e 20 6b 65 79 20 |The <BREAK> key | 00000160 63 61 6e 20 62 65 20 64 69 73 61 62 6c 65 64 20 |can be disabled | 00000170 75 73 69 6e 67 20 2a 42 52 45 41 4b 20 4f 46 46 |using *BREAK OFF| 00000180 20 0d 20 20 20 20 20 20 20 20 20 20 0d 20 20 20 | . . | 00000190 20 20 20 20 20 54 68 65 20 3c 42 52 45 41 4b 3e | The <BREAK>| 000001a0 20 6b 65 79 20 63 61 6e 20 62 65 20 20 65 6e 61 | key can be ena| 000001b0 62 6c 65 64 20 75 73 69 6e 67 20 2a 42 52 45 41 |bled using *BREA| 000001c0 4b 20 4f 4e 20 20 0d 20 20 20 20 20 20 20 20 28 |K ON . (| 000001d0 20 6f 72 20 75 73 65 20 2a 46 58 32 34 37 20 30 | or use *FX247 0| 000001e0 20 74 6f 20 65 6e 61 62 6c 65 20 29 20 0d 20 20 | to enable ) . | 000001f0 20 20 20 20 20 20 20 0d 20 20 20 20 20 20 20 20 | . | 00000200 49 74 20 20 69 73 20 20 65 73 73 65 6e 74 69 61 |It is essentia| 00000210 6c 20 20 74 68 61 74 20 20 79 6f 75 72 20 20 70 |l that your p| 00000220 72 6f 67 72 61 6d 20 20 63 6f 6e 74 61 69 6e 73 |rogram contains| 00000230 20 20 61 6e 20 20 4f 4e 45 52 52 4f 52 20 0d 20 | an ONERROR . | 00000240 20 20 20 20 20 20 20 73 74 61 74 65 6d 65 6e 74 | statement| 00000250 2e 20 54 68 65 20 66 6f 6c 6c 6f 77 69 6e 67 20 |. The following | 00000260 69 73 20 61 20 73 69 6d 70 6c 65 20 64 65 6d 6f |is a simple demo| 00000270 20 70 72 6f 67 72 61 6d 20 3a 20 0d 20 20 20 20 | program : . | 00000280 20 20 20 20 20 0d 20 20 20 20 20 20 20 20 20 20 | . | 00000290 20 31 30 20 20 4f 4e 45 52 52 4f 52 20 52 55 4e | 10 ONERROR RUN| 000002a0 20 0d 20 20 20 20 20 20 20 20 20 20 20 32 30 20 | . 20 | 000002b0 20 50 2e 22 20 54 68 69 73 20 69 73 20 61 20 64 | P." This is a d| 000002c0 65 6d 6f 22 20 0d 20 20 20 20 20 20 20 20 20 20 |emo" . | 000002d0 20 33 30 20 20 49 46 20 49 4e 4b 45 59 28 2d 31 | 30 IF INKEY(-1| 000002e0 29 20 54 48 45 4e 20 47 4f 54 4f 20 35 30 20 20 |) THEN GOTO 50 | 000002f0 0d 20 20 20 20 20 20 20 20 20 20 20 34 30 20 20 |. 40 | 00000300 47 4f 54 4f 20 32 30 20 0d 20 20 20 20 20 20 20 |GOTO 20 . | 00000310 20 20 20 20 35 30 20 20 2a 46 58 20 32 34 37 20 | 50 *FX 247 | 00000320 30 20 0d 20 20 20 20 20 20 20 20 20 20 20 36 30 |0 . 60| 00000330 20 20 45 4e 44 20 0d 20 20 20 20 20 20 20 20 20 | END . | 00000340 0d 20 20 20 20 20 20 20 20 4f 6e 63 65 20 20 74 |. Once t| 00000350 68 69 73 20 20 70 72 6f 67 72 61 6d 20 20 68 61 |his program ha| 00000360 73 20 62 65 65 6e 20 65 6e 74 65 72 65 64 20 74 |s been entered t| 00000370 79 70 65 20 2a 42 52 45 41 4b 20 4f 46 46 20 61 |ype *BREAK OFF a| 00000380 6e 64 20 72 75 6e 20 0d 20 20 20 20 20 20 20 20 |nd run . | 00000390 74 68 65 20 70 72 6f 67 72 61 6d 2e 20 50 72 65 |the program. Pre| 000003a0 73 73 69 6e 67 20 3c 42 52 45 41 4b 3e 20 77 69 |ssing <BREAK> wi| 000003b0 6c 6c 20 6e 6f 74 20 73 74 6f 70 20 74 68 65 20 |ll not stop the | 000003c0 20 70 72 6f 67 72 61 6d 20 20 62 75 74 20 0d 20 | program but . | 000003d0 20 20 20 20 20 20 20 77 69 6c 6c 20 20 63 61 72 | will car| 000003e0 72 79 20 20 6f 75 74 20 20 74 68 65 20 20 69 6e |ry out the in| 000003f0 73 74 72 75 63 74 69 6f 6e 20 20 63 6f 6e 74 61 |struction conta| 00000400 69 6e 65 64 20 20 69 6e 20 74 68 65 20 4f 4e 45 |ined in the ONE| 00000410 52 52 4f 52 20 0d 20 20 20 20 20 20 20 20 73 74 |RROR . st| 00000420 61 74 65 6d 65 6e 74 2e 20 0d 20 20 20 20 20 20 |atement. . | 00000430 20 20 28 20 54 6f 20 65 73 63 61 70 65 20 66 72 | ( To escape fr| 00000440 6f 6d 20 64 65 6d 6f 20 70 72 65 73 73 20 3c 53 |om demo press <S| 00000450 48 49 46 54 3e 20 29 20 0d 20 20 20 20 20 20 20 |HIFT> ) . | 00000460 20 20 20 0d 20 20 20 20 20 20 20 20 54 68 65 20 | . The | 00000470 72 6f 75 74 69 6e 65 20 77 69 6c 6c 20 77 6f 72 |routine will wor| 00000480 6b 20 77 69 74 68 20 61 20 42 42 43 20 6d 6f 64 |k with a BBC mod| 00000490 65 6c 20 42 20 6f 72 20 42 2b 2c 20 62 75 74 20 |el B or B+, but | 000004a0 64 6f 65 73 20 6e 6f 74 0d 20 20 20 20 20 20 20 |does not. | 000004b0 20 6f 70 65 72 61 74 65 20 6f 6e 20 61 20 4d 61 | operate on a Ma| 000004c0 73 74 65 72 20 63 6f 6d 70 75 74 65 72 2e 0d |ster computer..| 000004cf
20-01-89/T\Break.m0
20-01-89/T\Break.m1
20-01-89/T\Break.m2
20-01-89/T\Break.m4
20-01-89/T\Break.m5
.