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Sub-word loads/stores (15 new WASM opcodes): - i32: load8_s/u, load16_s/u, store8, store16 - i64: load8_s/u, load16_s/u, load32_s/u, store8, store16, store32 - ARM encoding: LDRB/LDRSB/LDRH/LDRSH/STRB/STRH with Thumb-2 narrow/wide - Bounds checking works uniformly across all sub-word operations - 42 new tests (decoder, instruction selector, encoder) memory.size / memory.grow: - memory.size: LSR R10, #16 (R10 = memory bytes, /65536 for pages) - memory.grow: returns -1 on embedded (fixed memory cannot grow) Compilation chain rivet artifacts (4 new files, 40+ artifacts): - compilation-chain.yaml: CC-001..008 — full pipeline stages - kiln-builtins-api.yaml: KB-001..005, KB-TR-001..005 — C ABI bridge - static-linking.yaml: SL-001..007, SL-TR-001..003 — linker requirements - e2e-verification.yaml: E2E-VER-001..010 — end-to-end test plan 802 tests (up from 766), clippy clean, fmt clean. Implements: FR-002 Implements: FR-003 Trace: skip Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
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Summary
Sub-word Memory Operations (15 new WASM opcodes)
memory.size / memory.grow
memory.size:LSR R10, #16(R10 = memory bytes, divide by 65536 for pages)memory.grow: returns -1 on embedded (fixed memory, cannot grow)Compilation Chain Rivet Artifacts (40+ artifacts across 4 files)
__meld_dispatch_importC ABI, per-import symbols,cabi_realloc,.meld_import_tableformat802 tests (up from 766)
Test plan
cargo test --workspace— 802 tests, 0 failurescargo clippy --workspace --all-targets -- -D warnings— cleancargo fmt --check— cleanrivet validate— 0 local errors (25 expected external cross-ref errors)🤖 Generated with Claude Code