Files

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rajamesandClaude Opus 5.5 167fdc3973 build(v4): make UBSan reports fatal in make sanitize

Without -fno-sanitize-recover=all, UBSan prints a report and the run
carries on to "all v4 tests passed". The sanitize build now aborts on
the first report. Verified by rebuilding the test-side shift bug found
in 981f4180 with these flags: the run exits 1 at the report.

Both test binaries now also depend on v4/Makefile, so a flag change
rebuilds them instead of leaving stale binaries in place.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

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include/v4

feat(v4.0.0): full-range UM* under plain F18 +* (D-3)

2026-10-02 19:21:17 -04:00

src

feat(v4.0.0): hosted golden model, single node

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tests

feat(v4.0.0): Q.FROM-INT and Q.TO-INT as +* double shifts

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.gitignore

feat(v4.0.0): hosted golden model, single node

2026-10-02 14:38:27 -04:00

Makefile

build(v4): make UBSan reports fatal in make sanitize

2026-10-02 22:59:50 -04:00

README.md

feat(v4.0.0): hosted golden model, single node

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README.md

v4/

StarForth v4: the 32-instruction F18-derived core. The design lives in docs/v4.0.0/JUSTIFICATION.md (why) and docs/v4.0.0/DECOMPOSITION.md (every v3 word mapped to a v4 fate).

The first deliverable is the hosted C99 golden model (JUSTIFICATION.md §10, step 1). It must pass POST and hold K≡1.0 with 32- and 64-bit cells on all three host ISAs.

What exists so far is the single node: registers, circular stacks, memory, all 32 opcodes, and per-opcode and per-call-target heat. make -C v4 test builds and runs the tests at both cell widths; make -C v4 sanitize repeats them under ASan and UBSan. There is no compiler capsule, no POST and no K measurement yet.