Home » Archimedes archive » Archimedes World » AW-1996-08.adf » !6502DEm_6502Dem » Docs/RISC

Docs/RISC

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 » Archimedes archive » Archimedes World » AW-1996-08.adf » !6502DEm_6502Dem
Filename: Docs/RISC
Read OK:
File size: 0288 bytes
Load address: 0000
Exec address: 0000
Duplicates

There is 1 duplicate copy of this file in the archive:

File contents
RISC OS 2
=========

As of version 1.00, both emulators work under RISC OS 2
but it is not always possible to test later versions on
RISC OS 2 before release.
However, none of the changes made should affect compatibility.

RISC OS 3.0
===========

This version of the operating system is not supported.
However, it is likely that both emulators will work.
3D Templates may have to be disabled.

RISC OS 3.1
===========

Under RISC OS 3.1 and above, 3D templates are supported
(if bit 0 of CMOS byte 140 "the 3D bit" is set) as is
solid dragging (if bit 1 of CMOS byte 28 is set)
"Mode 60" will not work on A4 portables without an
external monitor.
00000000  52 49 53 43 20 4f 53 20  32 0a 3d 3d 3d 3d 3d 3d  |RISC OS 2.======|
00000010  3d 3d 3d 0a 0a 41 73 20  6f 66 20 76 65 72 73 69  |===..As of versi|
00000020  6f 6e 20 31 2e 30 30 2c  20 62 6f 74 68 20 65 6d  |on 1.00, both em|
00000030  75 6c 61 74 6f 72 73 20  77 6f 72 6b 20 75 6e 64  |ulators work und|
00000040  65 72 20 52 49 53 43 20  4f 53 20 32 0a 62 75 74  |er RISC OS 2.but|
00000050  20 69 74 20 69 73 20 6e  6f 74 20 61 6c 77 61 79  | it is not alway|
00000060  73 20 70 6f 73 73 69 62  6c 65 20 74 6f 20 74 65  |s possible to te|
00000070  73 74 20 6c 61 74 65 72  20 76 65 72 73 69 6f 6e  |st later version|
00000080  73 20 6f 6e 0a 52 49 53  43 20 4f 53 20 32 20 62  |s on.RISC OS 2 b|
00000090  65 66 6f 72 65 20 72 65  6c 65 61 73 65 2e 0a 48  |efore release..H|
000000a0  6f 77 65 76 65 72 2c 20  6e 6f 6e 65 20 6f 66 20  |owever, none of |
000000b0  74 68 65 20 63 68 61 6e  67 65 73 20 6d 61 64 65  |the changes made|
000000c0  20 73 68 6f 75 6c 64 20  61 66 66 65 63 74 20 63  | should affect c|
000000d0  6f 6d 70 61 74 69 62 69  6c 69 74 79 2e 0a 0a 52  |ompatibility...R|
000000e0  49 53 43 20 4f 53 20 33  2e 30 0a 3d 3d 3d 3d 3d  |ISC OS 3.0.=====|
000000f0  3d 3d 3d 3d 3d 3d 0a 0a  54 68 69 73 20 76 65 72  |======..This ver|
00000100  73 69 6f 6e 20 6f 66 20  74 68 65 20 6f 70 65 72  |sion of the oper|
00000110  61 74 69 6e 67 20 73 79  73 74 65 6d 20 69 73 20  |ating system is |
00000120  6e 6f 74 20 73 75 70 70  6f 72 74 65 64 2e 0a 48  |not supported..H|
00000130  6f 77 65 76 65 72 2c 20  69 74 20 69 73 20 6c 69  |owever, it is li|
00000140  6b 65 6c 79 20 74 68 61  74 20 62 6f 74 68 20 65  |kely that both e|
00000150  6d 75 6c 61 74 6f 72 73  20 77 69 6c 6c 20 77 6f  |mulators will wo|
00000160  72 6b 2e 0a 33 44 20 54  65 6d 70 6c 61 74 65 73  |rk..3D Templates|
00000170  20 6d 61 79 20 68 61 76  65 20 74 6f 20 62 65 20  | may have to be |
00000180  64 69 73 61 62 6c 65 64  2e 0a 0a 52 49 53 43 20  |disabled...RISC |
00000190  4f 53 20 33 2e 31 0a 3d  3d 3d 3d 3d 3d 3d 3d 3d  |OS 3.1.=========|
000001a0  3d 3d 0a 0a 55 6e 64 65  72 20 52 49 53 43 20 4f  |==..Under RISC O|
000001b0  53 20 33 2e 31 20 61 6e  64 20 61 62 6f 76 65 2c  |S 3.1 and above,|
000001c0  20 33 44 20 74 65 6d 70  6c 61 74 65 73 20 61 72  | 3D templates ar|
000001d0  65 20 73 75 70 70 6f 72  74 65 64 0a 28 69 66 20  |e supported.(if |
000001e0  62 69 74 20 30 20 6f 66  20 43 4d 4f 53 20 62 79  |bit 0 of CMOS by|
000001f0  74 65 20 31 34 30 20 22  74 68 65 20 33 44 20 62  |te 140 "the 3D b|
00000200  69 74 22 20 69 73 20 73  65 74 29 20 61 73 20 69  |it" is set) as i|
00000210  73 0a 73 6f 6c 69 64 20  64 72 61 67 67 69 6e 67  |s.solid dragging|
00000220  20 28 69 66 20 62 69 74  20 31 20 6f 66 20 43 4d  | (if bit 1 of CM|
00000230  4f 53 20 62 79 74 65 20  32 38 20 69 73 20 73 65  |OS byte 28 is se|
00000240  74 29 0a 22 4d 6f 64 65  20 36 30 22 20 77 69 6c  |t)."Mode 60" wil|
00000250  6c 20 6e 6f 74 20 77 6f  72 6b 20 6f 6e 20 41 34  |l not work on A4|
00000260  20 70 6f 72 74 61 62 6c  65 73 20 77 69 74 68 6f  | portables witho|
00000270  75 74 20 61 6e 0a 65 78  74 65 72 6e 61 6c 20 6d  |ut an.external m|
00000280  6f 6e 69 74 6f 72 2e 0a                           |onitor..|
00000288