https://github.com/philspil66/ibm-pc-bios
This is a reconstruction of the original 1981-82 IBM PC BIOS source code using scanning and transcription of the BIOS listings found in the IBM Technical Reference manuals.
https://github.com/philspil66/ibm-pc-bios
assembly assembly-language assembly-language-programming bios ibm programming retrocomputer retrocomputers retrocomputing
Last synced: 9 months ago
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This is a reconstruction of the original 1981-82 IBM PC BIOS source code using scanning and transcription of the BIOS listings found in the IBM Technical Reference manuals.
- Host: GitHub
- URL: https://github.com/philspil66/ibm-pc-bios
- Owner: philspil66
- Created: 2021-09-26T14:20:19.000Z (over 4 years ago)
- Default Branch: main
- Last Pushed: 2021-09-26T14:50:16.000Z (over 4 years ago)
- Last Synced: 2025-03-24T07:04:11.646Z (10 months ago)
- Topics: assembly, assembly-language, assembly-language-programming, bios, ibm, programming, retrocomputer, retrocomputers, retrocomputing
- Language: Assembly
- Homepage:
- Size: 86.9 KB
- Stars: 64
- Watchers: 3
- Forks: 11
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# IBM-PC-BIOS
This is a reconstruction of the IBM PC BIOS source code using scanning and transcription of the BIOS listings found in the IBM Technical Reference manuals.
The following BIOS source code has been reconstructed:
[IBM PC Version 1 - 21/04/81](PCBIOS.ASM)
[IBM PC Version 2 - 19/10/81](PCBIOSV2.ASM)
[IBM PC Version 3 - 27/10/81](PCBIOSV3.ASM)
Notes:
• All 3 versions of the IBM PC BIOS were built using Intel ASM86 on an Intel development system. In each case the BIOS source code is a single large file and the BIOS code is 8KB which resides at F000:E000