Q.EXP is v3's q48_exp_approx: the Taylor series to 10 terms on |q|, stopping below 50 ulp, 1.0 Q./ e^|q| for q < 0, e^0 = 1.0, and for |q| >= 16.0 either 0 or Q max (v3 returned all ones, which is -ulp read signed under D-8). x, term, sum, sign and term index live in a new 8-cell variable (QE). Checked bit for bit against v3's q48_exp_approx (ported into the test) on 23 edge values and 3000 pseudo-random q in (-16.0, 16.0), at both cell widths, optimised and ASan+UBSan; dropping a term, moving the 50-ulp stop or skipping the reciprocal all fail. Q.EXP calls Q./, which calls (UQ/), which calls D2*C, and at first it left its caller no return entries. Lightened along the chain: - D2*C takes cin in A and builds 2hi+m with `over + +`: no ROT, no SWAP. - (UQ/) parks the quotient bit instead of using ROT, stores q without SWAP, and does its full trial subtraction (with borrow) in line instead of calling DNEGATE D+. - Q.EXP keeps its term index in (QE) instead of a FOR count. Headroom (data under args / return): (UQ/) 4/3 -> 4/4, Q./ 3/2 -> 3/3, Q.EXP 3/2. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
StarForth / LithosAnanke Documentation
This is the lithosananke branch: the bare-metal StarKernel side of the project
(contrast master, which is the hosted-VM-only side). Documentation follows the
two-tier model described in docs/CLAUDE.md: formal/ is the polished,
citable LaTeX tier; working/ is living design notes and drafts that feed it.
Everything else in this directory is branch- or subsystem-specific material that
doesn't fit either tier.
Layout
- formal/ — Three-volume LaTeX documentation set (research volumes,
practitioner books, standalone reports) plus the
scraps/fragment library it's assembled from. Audience: patent counsel, SSRN reviewers, licensees, hobbyists with hardware in hand. Seeformal/CLAUDE.mdfor authoring conventions. - working/ — Living documents: architecture design notes, DoE
experiment logs, hardware/platform notes, draft specs, academic-paper source
material, and an archive of superseded docs. Source material for
formal/. - 03-architecture/ — Tripod VM architecture constraints (Hera/Hermes/Artemis) and the word-level ACL system design.
- lithosananke/ — LithosAnanke kernel branch documentation: milestone roadmap, system architecture, HAL reference, kernel command-line argument design, and the amd64 APIC-timer ISR postmortem.
- birthing/ — VM birthing plan and status for the Hera-spawns- Hermes/Artemis constellation, plus three-architecture QEMU acceptance logs.
- patent/ — Provisional patent application source. Legal hold — ask Bob before touching anything in this directory.
- api/ — Generated Doxygen tag file and warnings log (gitignored; not part of the tracked doc tree).
- pptx/ — Elevator-pitch and deep-dive slide decks for different audiences (technical, non-technical, academic, PhD-level).
Current Active Work
- LithosAnanke M7/M7.1 — VM parity validation and init capsule architecture.
See
lithosananke/README.mdandlithosananke/M7.1.md. - Word-level ACL system — Phase 6 complete on
master; Phase 7 (LithosAnanke parity) is the next step. See03-architecture/word-acl/README.md. - Tripod VMs — Hera (governor), Hermes (messenger), Artemis (memory/block
storage). See
03-architecture/tripod/README.mdandbirthing/.
Contributing
- Place new material in
working/first; promote toformal/only when it's ready to be cited (seeformal/CLAUDE.mdfor promotion criteria). - Never touch
patent/,formal/patent/,formal/scraps/legal/, orworking/legal/without Bob's explicit instruction. - Add a
README.mdto any new category-level subdirectory, following the format used throughout this tree: orientation paragraph + bullet list of real files with one-line descriptions.