Late November work on the pre-boot loader

2025-11-30

The prior two weeks we drafted some interfaces and a rough implementation of the pre-boot loader that's based on the debugger. Because the loader is a stripped down build of the debugger, many of its features come for free (or almost so), including:

  • Chain loading of other kernels
  • Script file reading
  • Serial terminal I/O
  • Expression evaluator
  • Subset of the Extensions for lDebug infrastructure
  • Memory dump and edit commands
  • Dump interrupts command
  • Port I/O commands
  • Command line buffer related commands

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2025-11-30 17:01:24 +0100 Nov Sun · ecm · 0 Comments

No regulation post this week (mid late November)

This week I have only worked a little on the new loader, but I haven't uploaded any of these changes yet. I expect to upload some work within the tail of November.

2025-11-23 19:55:57 +0100 Nov Sun · ecm · 0 Comments

Idiom: Make from scratch

If you wish to make an apple pie from scratch, you must first invent the universe.

Carl Sagan

2025-11-19 21:32:23 +0100 Nov Wed · ecm · 0 Comments

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