PEpeter_d_sherman·Nov 13, 2022Submission
Intel Pentium Pro Processor BIOS Writer's Guide Version 2.0 (1996) [pdf]
5 points · Open discussionkaneton
appendix-bios
Assembly2018–2022
kaneton / appendix-bios
appendix-bios
IBM AT 80286 BIOS
2Distinct people
2Mentions
0Explicit recommenders
136GitHub stars
What to know before exploring
What it is
IBM AT 80286 BIOS
GitHub
Where it is used
No documented product use has been verified yet.
What people are saying
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This week on Hacker News
Nov 7–Nov 14 UTC · Direct repository links and separately labeled related project stories. Indexed through 11/14/2026, 1:49:46 PM UTC.
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Mentions over time
HN mentions by year2 dated mentions
Observed mentions: 2018-04-27 08:59:00 UTC to 2022-11-13 22:42:59 UTC.
Counts come from the repository’s dated source evidence. Index cutoff: 2026-11-02 08:16:59 UTC.
View mention counts and date ranges
| Period | Start (UTC) | End (exclusive, UTC) | Mentions | Submissions | Comments |
|---|---|---|---|---|---|
| 2018 | 2018-01-01 00:00:00 UTC | 2019-01-01 00:00:00 UTC | 1 | 0 | 1 |
| 2019 | 2019-01-01 00:00:00 UTC | 2020-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2020 | 2020-01-01 00:00:00 UTC | 2021-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2021 | 2021-01-01 00:00:00 UTC | 2022-01-01 00:00:00 UTC | 0 | 0 | 0 |
| 2022 | 2022-01-01 00:00:00 UTC | 2023-01-01 00:00:00 UTC | 1 | 1 | 0 |
What Hacker News says
2 sourcesIBM PC x86 BIOS code:
https://github.com/kaneton/appendix-bios
OT: This brings back memories of tinkering with the MS-DOS boot process. Back then, the BIOS would read the MBR and copy its contents to 0x7C00 and start execution from there. So you could assemble your own code (using no less than MS-DOS debug) and plonk it into the MBR. I remember doing things like fooling the boot loader into thinking there's less ram than there actually was (639kB instead of 640kB) and using the unaccounted 1kB for placing your own code that could be triggered by a captured interrupt... Fun times!
In Ask HN: What are some examples of beautiful x86 assembly code?