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August 2021

ARM's SystemReady Specifications

ARM's SystemReady Specifications
ARM's SystemReady Specifications

The folks at ARM offer a certification program based on a set of hardware and firmware standards: the Base System Architecture (BSA), and B...

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11:53 PM
William Leara
0
ARM, specifications
11:53 PM

The UEFI 2.9 Specification

The UEFI 2.9 Specification
The UEFI 2.9 Specification

Forgive the delay in publishing, but I've been taking a paternity leave from work recently, and just now getting back into the swing of ...

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7:00 AM
William Leara
1
specifications
7:00 AM
 
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Welcome to the Basic Input/Output website! Here I share things pertaining to the arcane art of PC BIOS development. For spice, I add material about software development in general and some interesting computer history vignettes. Please, try to contain your excitement!
—William Leara
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popular

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  • UEFI Forum Updates All Specs, Dec 2024
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  • Reverse Engineering UEFI with Ghidra
    Ghidra is a free and open-source tool for software reverse engineering.  It is extensible, and allows for application-specific capabilities...
  • EDID and DisplayID
    In " The Before Times" (think: 1980s), there was no way for graphics adapters and monitors to negotiate a common set of supported...
  • RWEverything. Yes, Everything.
    I’ve done many tools reviews in the history of this web site, so it would be unthinkable to neglect to talk about what may be the biggest a...
  • RU!
    I recently did a review of the beloved RWEverything utility.  RWEverything is an easy to use and powerful utility for BIOS developers that ...

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latest UEFI specs

  • UEFI Spec 2.11
  • UEFI PI Spec 1.9
  • ACPI 6.5a

UEFI resources

  • presentations, podcasts, videos
  • white papers

UEFI blog roll

  • BIOS on StackOverflow
    transfer address by memory address
  • Vincent Zimmer's blog
    big money, open source, papers

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