Software › Acorn Atom MOS (Kernel)
Acorn Atom MOS (Kernel)
system Grey · copyright, community-distributed
The Atom MOS (machine operating system) ROM. It prints the "ACORN ATOM" sign-on, runs the ">" monitor prompt, and provides the character IO, cassette load/save and interrupt handling that Atom BASIC calls into. Sits at $F000. A system ROM, self-hosted here (grey).
Format: Acorn Atom ROM image (4 KB) · By: Acorn Computers · Licence: Acorn system ROM (copyright, community-distributed)
Runs on
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First 512 bytes of file — offset, bytes, ASCII.
00000000 50 4C 4F 54 F5 4E 44 52 41 57 F5 42 4D 4F 56 45 PLOT.NDRAW.BMOVE
00000010 F5 46 43 4C 45 41 52 F6 7B 44 49 4D F0 AE 5B F2 .FCLEAR.{DIM..[.
00000020 A1 4F 4C 44 F5 31 57 41 49 54 F1 4C C5 50 A4 5E .OLD.1WAIT.L.P.^
00000030 B1 05 C9 40 90 12 C9 5B B0 0E C8 D1 05 D0 09 20 ...@...[.......
00000040 8B F0 20 4F C9 4C 62 C9 4C 24 CA A2 FF A4 5E C6 .. O.Lb.L$....^.
00000050 5E B1 05 C9 40 90 09 C9 5B B0 05 C8 D1 05 F0 25 ^...@...[......%
00000060 A4 5E E8 C8 BD 00 F0 30 0C D1 05 F0 F5 E8 BD FF .^.....0........
00000070 EF 10 FA D0 EB 85 53 BD 01 F0 85 52 84 03 A6 04 ......S....R....
00000080 E6 5E 6C 52 00 20 8B F0 4C F1 C3 C8 84 03 E9 40 .^lR. ..L......@
00000090 48 20 BC C8 68 A8 B5 15 0A 36 24 0A 36 24 18 79 H ..h....6$.6$.y
000000a0 EB 02 95 15 B5 24 79 06 03 95 24 B0 D7 60 A5 01 .....$y...$..`..
000000b0 05 02 F0 22 20 34 C4 90 1E 20 BC C8 CA CA 86 04 ..." 4... ......
000000c0 B4 16 38 A5 23 99 21 03 75 17 85 23 A5 24 99 3C ..8.#.!.u..#.$.<
000000d0 03 75 26 4C 19 F1 00 A4 03 B1 05 C9 40 90 F7 C9 .u&L........@...
000000e0 5B B0 F3 C8 D1 05 D0 EE E9 40 48 C8 84 03 20 BC [........@H... .
000000f0 C8 68 A8 A5 23 99 EB 02 A5 24 99 06 03 CA 86 04 .h..#....$......
00000100 B4 16 C8 D0 02 F6 25 98 0A 36 25 0A 36 25 18 65 ......%..6%.6%.e
00000110 23 85 23 B5 25 65 24 B0 BD 85 24 A0 00 A9 AA 91 #.#.%e$...$.....
00000120 23 D1 23 D0 F7 4A 91 23 D1 23 D0 F0 20 34 C4 B0 #.#..J.#.#.. 4..
00000130 A5 A4 03 B1 05 C9 2C D0 05 E6 03 4C AE F0 4C 58 ......,....L..LX
00000140 C5 A5 0D 85 23 A5 0E 85 24 4C 83 CE 20 E4 C4 20 ....#...$L.. ..
00000150 66 FE 4C 5B C5 1C 8A 1C 23 5D 8B 1B A1 9D 8A 1D f.L[....#]......
00000160 23 9D 8B 1D A1 00 29 19 AE 69 A8 19 23 24 53 1B #.....)..i..#$S.
00000170 23 24 53 19 A1 00 1A 5B 5B A5 69 24 24 AE AE A8 #$S....[[.i$$...
00000180 AD 29 00 7C 00 15 9C 6D 9C A5 69 29 53 84 13 34 .).|...m..i)S..4
00000190 11 A5 69 23 A0 D8 62 5A 48 26 62 94 88 54 44 C8 ..i#..bZH&b..TD.
000001a0 54 68 44 E8 94 00 B4 08 84 74 B4 28 6E 74 F4 CC ThD......t.(nt..
000001b0 4A 72 F2 A4 8A 00 AA A2 A2 74 74 74 72 44 68 B2 Jr.......tttrDh.
000001c0 32 B2 00 22 00 1A 1A 26 26 72 72 88 C8 C4 CA 26 2.."...&&rr....&
000001d0 48 44 44 A2 C8 00 02 00 08 F2 FF 80 01 C0 E2 C0 HDD.............
000001e0 C0 FF 00 00 08 00 10 80 40 C0 00 C0 00 40 00 00 ........@....@..
000001f0 E4 20 80 00 FC 00 08 08 F8 FC F4 0C 10 04 F4 00 . ..............
…(3584 more bytes)