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docs(v4.0.0): MACHINE.md -- forth79.4th names all 130 words; init.4th is the system's init

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Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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rajames
2026-10-15 05:50:18 -04:00
co-authored by Claude Opus 5.5
parent 528bed0874
commit 884721783a
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4. **POST**, with the existing test DSL: the case table `v4/system/post_cases.c` (name, lines,
expected error, stack and output) and its runner `v4/system/post.c`. Seal before it,
`COLD` after, as now.
5. **`init.4th`.** From here the boot is `init.4th` only: what must follow `COLD`, such as
setting `STARSHIPOS` as the search vocabulary. No boot policy is written in C.
5. **`init.4th`**, the system's init (section 7, item 6). From here the boot is `init.4th`
only. No boot policy is written in C.
6. `ok>`.
The **loader** in steps 2 and 3 is whoever owns the machine: the kernel on bare metal, the
@@ -132,12 +132,9 @@ Each step is accepted as `.claude/CLAUDE.md` says:
stays, as the reference to compare against and for `mkpost.py`.
4. **Everything that can load before POST does.** That is the system. `forth79.4th`,
`starforth.4th` and every other system capsule load before POST. POST tests the system.
## 8. Still open
1. **Where the standard's names live.** "100 percent" in `forth79.4th`: does it name all 130
Required words, including the ones that are single opcodes (`DUP`, `+`, `@`)? Proposed: yes.
The `.f18` primitives carry their own names, and `forth79.4th` gives every standard word its
standard name and behaviour. The `.f18` layer then holds no FORTH-79 names at all.
2. **What `init.4th` does after POST**, now that the system loads before it: what follows
`COLD`, such as making `STARSHIPOS` the search vocabulary and starting Hera's births.
5. **`forth79.4th` names all 130 Required words**, the single-opcode ones (`DUP`, `+`, `@`)
included. The `.f18` primitives carry their own names; the `.f18` layer holds no FORTH-79
names at all.
6. **`init.4th` is the system's init**, as `init` and its rc files are on a Unix system: it
initializes the system. Whatever it says runs after POST, and what it says is the system's
configuration, not part of this design.