Home » Recent acquisitions » Acorn ADFS disks » adfs_AcornUser_199611.adf » Extras » Harrison/PrcsVector/ReadMe
Harrison/PrcsVector/ReadMe
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 » Recent acquisitions » Acorn ADFS disks » adfs_AcornUser_199611.adf » Extras |
| Filename: | Harrison/PrcsVector/ReadMe |
| Read OK: | ✔ |
| File size: | 0608 bytes |
| Load address: | 0000 |
| Exec address: | 0000 |
File contents
Processor Vector module v1.00 � Stephen Harrison, 1996
-----------------------------------------------------------------------------
The purpose of this small module is to add a new very useful SWI to the
operating system. This SWI is &69, OS_ClaimProcessorVector, and allows
programs to 'legally' take over the hardware vectors handled by the
processor, such as the SWI vector and abort vectors.
This SWI is available in RiscOS versions 3.5 and later, but users of RiscOS
3.1 and RiscOS 2 cannot easily duplicate it's function and are left to fend
for themselves - this usually results in incompatible code being created
which will not work on newer machines, and causes many problems.
The details of SWI OS_ClaimProcessorVector can be found in volume 5 of the
RiscOS 3 PRMs, and are duplicated in the 'SWIdetails' file with this module
for those who do not have the 5th volume. (Actually I don't have the 5th
volume, so thanks for the info must go to Ben Carter, here's a free ad for
his games: Look out for Mirror Image and Merp, great games out soon! :-).
This module is totally freeware! Use it and spread it!
If you want to use it in a commercial program feel free, but contact me first
just to say hello and to tell me where I can see it in use :-).
Any comments/bug reports/etc. I can be contacted at:
E-mail sah195@soton.ac.uk
On line as Phoenix on Digital Databank and Northern Arm BBSs
Snail mail 613, Kenilworth Road
Balsall Common
Nr. Coventry
CV7 7DX 00000000 50 72 6f 63 65 73 73 6f 72 20 56 65 63 74 6f 72 |Processor Vector| 00000010 20 6d 6f 64 75 6c 65 20 76 31 2e 30 30 20 20 20 | module v1.00 | 00000020 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 20 | | 00000030 20 20 20 20 20 a9 20 53 74 65 70 68 65 6e 20 48 | . Stephen H| 00000040 61 72 72 69 73 6f 6e 2c 20 31 39 39 36 0a 2d 2d |arrison, 1996.--| 00000050 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d |----------------| * 00000090 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 2d 0a 0a 54 68 65 |-----------..The| 000000a0 20 70 75 72 70 6f 73 65 20 6f 66 20 74 68 69 73 | purpose of this| 000000b0 20 73 6d 61 6c 6c 20 6d 6f 64 75 6c 65 20 69 73 | small module is| 000000c0 20 74 6f 20 61 64 64 20 61 20 6e 65 77 20 76 65 | to add a new ve| 000000d0 72 79 20 75 73 65 66 75 6c 20 53 57 49 20 74 6f |ry useful SWI to| 000000e0 20 74 68 65 0a 6f 70 65 72 61 74 69 6e 67 20 73 | the.operating s| 000000f0 79 73 74 65 6d 2e 20 54 68 69 73 20 53 57 49 20 |ystem. This SWI | 00000100 69 73 20 26 36 39 2c 20 4f 53 5f 43 6c 61 69 6d |is &69, OS_Claim| 00000110 50 72 6f 63 65 73 73 6f 72 56 65 63 74 6f 72 2c |ProcessorVector,| 00000120 20 61 6e 64 20 61 6c 6c 6f 77 73 0a 70 72 6f 67 | and allows.prog| 00000130 72 61 6d 73 20 74 6f 20 27 6c 65 67 61 6c 6c 79 |rams to 'legally| 00000140 27 20 74 61 6b 65 20 6f 76 65 72 20 74 68 65 20 |' take over the | 00000150 68 61 72 64 77 61 72 65 20 76 65 63 74 6f 72 73 |hardware vectors| 00000160 20 68 61 6e 64 6c 65 64 20 62 79 20 74 68 65 0a | handled by the.| 00000170 70 72 6f 63 65 73 73 6f 72 2c 20 73 75 63 68 20 |processor, such | 00000180 61 73 20 74 68 65 20 53 57 49 20 76 65 63 74 6f |as the SWI vecto| 00000190 72 20 61 6e 64 20 61 62 6f 72 74 20 76 65 63 74 |r and abort vect| 000001a0 6f 72 73 2e 0a 0a 54 68 69 73 20 53 57 49 20 69 |ors...This SWI i| 000001b0 73 20 61 76 61 69 6c 61 62 6c 65 20 69 6e 20 52 |s available in R| 000001c0 69 73 63 4f 53 20 76 65 72 73 69 6f 6e 73 20 33 |iscOS versions 3| 000001d0 2e 35 20 61 6e 64 20 6c 61 74 65 72 2c 20 62 75 |.5 and later, bu| 000001e0 74 20 75 73 65 72 73 20 6f 66 20 52 69 73 63 4f |t users of RiscO| 000001f0 53 0a 33 2e 31 20 61 6e 64 20 52 69 73 63 4f 53 |S.3.1 and RiscOS| 00000200 20 32 20 63 61 6e 6e 6f 74 20 65 61 73 69 6c 79 | 2 cannot easily| 00000210 20 64 75 70 6c 69 63 61 74 65 20 69 74 27 73 20 | duplicate it's | 00000220 66 75 6e 63 74 69 6f 6e 20 61 6e 64 20 61 72 65 |function and are| 00000230 20 6c 65 66 74 20 74 6f 20 66 65 6e 64 0a 66 6f | left to fend.fo| 00000240 72 20 74 68 65 6d 73 65 6c 76 65 73 20 2d 20 74 |r themselves - t| 00000250 68 69 73 20 75 73 75 61 6c 6c 79 20 72 65 73 75 |his usually resu| 00000260 6c 74 73 20 69 6e 20 69 6e 63 6f 6d 70 61 74 69 |lts in incompati| 00000270 62 6c 65 20 63 6f 64 65 20 62 65 69 6e 67 20 63 |ble code being c| 00000280 72 65 61 74 65 64 0a 77 68 69 63 68 20 77 69 6c |reated.which wil| 00000290 6c 20 6e 6f 74 20 77 6f 72 6b 20 6f 6e 20 6e 65 |l not work on ne| 000002a0 77 65 72 20 6d 61 63 68 69 6e 65 73 2c 20 61 6e |wer machines, an| 000002b0 64 20 63 61 75 73 65 73 20 6d 61 6e 79 20 70 72 |d causes many pr| 000002c0 6f 62 6c 65 6d 73 2e 0a 0a 54 68 65 20 64 65 74 |oblems...The det| 000002d0 61 69 6c 73 20 6f 66 20 53 57 49 20 4f 53 5f 43 |ails of SWI OS_C| 000002e0 6c 61 69 6d 50 72 6f 63 65 73 73 6f 72 56 65 63 |laimProcessorVec| 000002f0 74 6f 72 20 63 61 6e 20 62 65 20 66 6f 75 6e 64 |tor can be found| 00000300 20 69 6e 20 76 6f 6c 75 6d 65 20 35 20 6f 66 20 | in volume 5 of | 00000310 74 68 65 0a 52 69 73 63 4f 53 20 33 20 50 52 4d |the.RiscOS 3 PRM| 00000320 73 2c 20 61 6e 64 20 61 72 65 20 64 75 70 6c 69 |s, and are dupli| 00000330 63 61 74 65 64 20 69 6e 20 74 68 65 20 27 53 57 |cated in the 'SW| 00000340 49 64 65 74 61 69 6c 73 27 20 66 69 6c 65 20 77 |Idetails' file w| 00000350 69 74 68 20 74 68 69 73 20 6d 6f 64 75 6c 65 0a |ith this module.| 00000360 66 6f 72 20 74 68 6f 73 65 20 77 68 6f 20 64 6f |for those who do| 00000370 20 6e 6f 74 20 68 61 76 65 20 74 68 65 20 35 74 | not have the 5t| 00000380 68 20 76 6f 6c 75 6d 65 2e 20 28 41 63 74 75 61 |h volume. (Actua| 00000390 6c 6c 79 20 49 20 64 6f 6e 27 74 20 68 61 76 65 |lly I don't have| 000003a0 20 74 68 65 20 35 74 68 0a 76 6f 6c 75 6d 65 2c | the 5th.volume,| 000003b0 20 73 6f 20 74 68 61 6e 6b 73 20 66 6f 72 20 74 | so thanks for t| 000003c0 68 65 20 69 6e 66 6f 20 6d 75 73 74 20 67 6f 20 |he info must go | 000003d0 74 6f 20 42 65 6e 20 43 61 72 74 65 72 2c 20 68 |to Ben Carter, h| 000003e0 65 72 65 27 73 20 61 20 66 72 65 65 20 61 64 20 |ere's a free ad | 000003f0 66 6f 72 0a 68 69 73 20 67 61 6d 65 73 3a 20 4c |for.his games: L| 00000400 6f 6f 6b 20 6f 75 74 20 66 6f 72 20 4d 69 72 72 |ook out for Mirr| 00000410 6f 72 20 49 6d 61 67 65 20 61 6e 64 20 4d 65 72 |or Image and Mer| 00000420 70 2c 20 67 72 65 61 74 20 67 61 6d 65 73 20 6f |p, great games o| 00000430 75 74 20 73 6f 6f 6e 21 20 3a 2d 29 2e 0a 0a 0a |ut soon! :-)....| 00000440 54 68 69 73 20 6d 6f 64 75 6c 65 20 69 73 20 74 |This module is t| 00000450 6f 74 61 6c 6c 79 20 66 72 65 65 77 61 72 65 21 |otally freeware!| 00000460 20 55 73 65 20 69 74 20 61 6e 64 20 73 70 72 65 | Use it and spre| 00000470 61 64 20 69 74 21 0a 0a 49 66 20 79 6f 75 20 77 |ad it!..If you w| 00000480 61 6e 74 20 74 6f 20 75 73 65 20 69 74 20 69 6e |ant to use it in| 00000490 20 61 20 63 6f 6d 6d 65 72 63 69 61 6c 20 70 72 | a commercial pr| 000004a0 6f 67 72 61 6d 20 66 65 65 6c 20 66 72 65 65 2c |ogram feel free,| 000004b0 20 62 75 74 20 63 6f 6e 74 61 63 74 20 6d 65 20 | but contact me | 000004c0 66 69 72 73 74 0a 6a 75 73 74 20 74 6f 20 73 61 |first.just to sa| 000004d0 79 20 68 65 6c 6c 6f 20 61 6e 64 20 74 6f 20 74 |y hello and to t| 000004e0 65 6c 6c 20 6d 65 20 77 68 65 72 65 20 49 20 63 |ell me where I c| 000004f0 61 6e 20 73 65 65 20 69 74 20 69 6e 20 75 73 65 |an see it in use| 00000500 20 3a 2d 29 2e 0a 0a 0a 41 6e 79 20 63 6f 6d 6d | :-)....Any comm| 00000510 65 6e 74 73 2f 62 75 67 20 72 65 70 6f 72 74 73 |ents/bug reports| 00000520 2f 65 74 63 2e 20 49 20 63 61 6e 20 62 65 20 63 |/etc. I can be c| 00000530 6f 6e 74 61 63 74 65 64 20 61 74 3a 0a 0a 45 2d |ontacted at:..E-| 00000540 6d 61 69 6c 20 20 20 20 20 20 73 61 68 31 39 35 |mail sah195| 00000550 40 73 6f 74 6f 6e 2e 61 63 2e 75 6b 0a 0a 4f 6e |@soton.ac.uk..On| 00000560 20 6c 69 6e 65 20 20 20 20 20 61 73 20 50 68 6f | line as Pho| 00000570 65 6e 69 78 20 6f 6e 20 44 69 67 69 74 61 6c 20 |enix on Digital | 00000580 44 61 74 61 62 61 6e 6b 20 61 6e 64 20 4e 6f 72 |Databank and Nor| 00000590 74 68 65 72 6e 20 41 72 6d 20 42 42 53 73 0a 0a |thern Arm BBSs..| 000005a0 53 6e 61 69 6c 20 6d 61 69 6c 20 20 36 31 33 2c |Snail mail 613,| 000005b0 20 4b 65 6e 69 6c 77 6f 72 74 68 20 52 6f 61 64 | Kenilworth Road| 000005c0 0a 20 20 20 20 20 20 20 20 20 20 20 20 42 61 6c |. Bal| 000005d0 73 61 6c 6c 20 43 6f 6d 6d 6f 6e 0a 20 20 20 20 |sall Common. | 000005e0 20 20 20 20 20 20 20 20 4e 72 2e 20 43 6f 76 65 | Nr. Cove| 000005f0 6e 74 72 79 0a 20 20 20 20 20 20 20 20 20 20 20 |ntry. | 00000600 20 43 56 37 20 37 44 58 | CV7 7DX| 00000608
.