feat(host): descriptor ring (W90, R-HS-38)

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Closes #893. 14 new tests. 830 total.

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📓 NotebookLM Notebook linked to this PR

• Notebook ID: b83263109fb055dc
• URL: https://notebooklm.google.com/notebook/b83263109fb055dc

This notebook contains session context, decisions, and artifacts for this work.

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PR Dashboard

Generated at: 2026-05-24 11:33:51 UTC

• feat(host): descriptor ring (W90, R-HS-38) #894 feat(host): descriptor ring (W90, R-HS-38) | Created: 2026-05-24 | Updated: 2026-05-24 | 10 failing / 15 total
• feat(host): capability flags (W89, R-HS-37) #892 feat(host): capability flags (W89, R-HS-37) | Created: 2026-05-24 | Updated: 2026-05-24 | 5 failing / 24 total
• feat(host): operation logger (W88, R-HS-36) #890 feat(host): operation logger (W88, R-HS-36) | Created: 2026-05-24 | Updated: 2026-05-24 | 5 failing / 24 total
• feat(host): rate limiter (W87, R-HS-35) #888 feat(host): rate limiter (W87, R-HS-35) | Created: 2026-05-24 | Updated: 2026-05-24 | 5 failing / 24 total
• feat(host): latency histogram (W86, R-HS-34) #886 feat(host): latency histogram (W86, R-HS-34) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): error catalog with severity and recovery (W85, R-HS-33) #884 feat(host): error catalog with severity and recovery (W85, R-HS-33) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): checksum registry (W80, R-HS-28) #882 feat(host): checksum registry (W80, R-HS-28) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): version info (W84, R-HS-32) #881 feat(host): version info (W84, R-HS-32) | Created: 2026-05-24 | Updated: 2026-05-24 | 5 failing / 24 total
• feat(host): telemetry exporter (W83, R-HS-31) #880 feat(host): telemetry exporter (W83, R-HS-31) | Created: 2026-05-24 | Updated: 2026-05-24 | 5 failing / 24 total
• feat(host): buffer chain (W82, R-HS-30) #879 feat(host): buffer chain (W82, R-HS-30) | Created: 2026-05-24 | Updated: 2026-05-24 | 5 failing / 24 total
• feat(host): address space map (W81, R-HS-29) #878 feat(host): address space map (W81, R-HS-29) | Created: 2026-05-24 | Updated: 2026-05-24 | 5 failing / 24 total
• feat(host): retry policy with backoff strategies (W79, R-HS-27) #872 feat(host): retry policy with backoff strategies (W79, R-HS-27) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): config builder with validation (W78, R-HS-26) #870 feat(host): config builder with validation (W78, R-HS-26) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): diagnostic counters for pipeline metrics (W77, R-HS-25) #868 feat(host): diagnostic counters for pipeline metrics (W77, R-HS-25) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): firmware image parser with section table (W76, R-HS-24) #866 feat(host): firmware image parser with section table (W76, R-HS-24) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): event log for inference profiling (W75, R-HS-23) #864 feat(host): event log for inference profiling (W75, R-HS-23) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): command queue with priority support (W74, R-HS-22) #862 feat(host): command queue with priority support (W74, R-HS-22) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): watchdog timer for heartbeat monitoring (W73, R-HS-21) #860 feat(host): watchdog timer for heartbeat monitoring (W73, R-HS-21) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): inference pipeline state machine (W72, R-HS-20) #858 feat(host): inference pipeline state machine (W72, R-HS-20) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): memory pool for DMA buffer management (W71, R-HS-19) #856 feat(host): memory pool for DMA buffer management (W71, R-HS-19) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): typed register map with field accessors (W70, R-HS-18) #854 feat(host): typed register map with field accessors (W70, R-HS-18) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): session manager with seq tracking and retry (W69, R-HS-17) #852 feat(host): session manager with seq tracking and retry (W69, R-HS-17) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): transport layer with length-prefix + CRC framing (W68, R-HS-16) #850 feat(host): transport layer with length-prefix + CRC framing (W68, R-HS-16) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): command protocol for host-to-FPGA framing (W67, R-HS-15) #848 feat(host): command protocol for host-to-FPGA framing (W67, R-HS-15) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): weight format header parser (W66, R-HS-14) #846 feat(host): weight format header parser (W66, R-HS-14) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): bitstream reader for weight format parsing (W65, R-HS-13) #844 feat(host): bitstream reader for weight format parsing (W65, R-HS-13) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): ring buffer for DMA streaming (W64, R-HS-12) #842 feat(host): ring buffer for DMA streaming (W64, R-HS-12) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): scatter/gather DMA descriptor (W63, R-HS-11) #840 feat(host): scatter/gather DMA descriptor (W63, R-HS-11) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(compiler): strengthen AST constant folding (W62, R-CO-1) #838 feat(compiler): strengthen AST constant folding (W62, R-CO-1) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): weight loader with CRC32 and ternary validation (W61, R-HS-10) #836 feat(host): weight loader with CRC32 and ternary validation (W61, R-HS-10) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(compiler): for-range loop for i in start..end (W60, R-CG-7) #834 feat(compiler): for-range loop for i in start..end (W60, R-CG-7) | Created: 2026-05-24 | Updated: 2026-05-24 | 4 failing / 24 total
• feat(host): DMA channel model with CRC32 integrity (W59, R-HS-9) #832 feat(host): DMA channel model with CRC32 integrity (W59, R-HS-9) | Created: 2026-05-24 | Updated: 2026-05-24 | 3 failing / 24 total
• feat(host): CRC32 checksum for weight word transport integrity (W58, R-HS-8) #830 feat(host): CRC32 checksum for weight word transport integrity (W58, R-HS-8) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 3 total
• feat(compiler): bit replication operator {N{expr}} (Wave 57, R-CG-6) #828 feat(compiler): bit replication operator {N{expr}} (Wave 57, R-CG-6) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 3 total
• feat(compiler): ternary conditional operator cond ? a : b (Wave 56, R-CG-5) #826 feat(compiler): ternary conditional operator cond ? a : b (Wave 56, R-CG-5) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 3 total
• feat(compiler): bit concatenation operator {a, b, ...} (Wave 55, R-CG-4) #824 feat(compiler): bit concatenation operator {a, b, ...} (Wave 55, R-CG-4) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 3 total
• feat(compiler): bit-range part-select operator [hi:lo] (Wave 54, R-CG-3) #822 feat(compiler): bit-range part-select operator [hi:lo] (Wave 54, R-CG-3) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 3 total
• chore(bootstrap): dead code warning sweep (Wave 53, R-HY-1) #820 chore(bootstrap): dead code warning sweep (Wave 53, R-HY-1) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 3 total
• feat(bootstrap): host-side weight validator (Wave 52, R-HS-7) #818 feat(bootstrap): host-side weight validator (Wave 52, R-HS-7) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 3 total
• feat(compiler): compound assignment operators across all backends (Wave 51, R-CG-2) #816 feat(compiler): compound assignment operators across all backends (Wave 51, R-CG-2) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 3 total
• feat(bootstrap): tt-debug wrapper -- observability layer for Tiny Tapeout silicon (Wave 50, R-TT-3) #814 feat(bootstrap): tt-debug wrapper -- observability layer for Tiny Tapeout silicon (Wave 50, R-TT-3) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 3 total
• feat(compiler): cast operator across all backends (Wave 49, R-CG-1) #813 feat(compiler): cast operator across all backends (Wave 49, R-CG-1) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 3 total
• fix(bootstrap): JWT test failures — jsonwebtoken CryptoProvider (Wave 48, R-TR-2) #810 fix(bootstrap): JWT test failures — jsonwebtoken CryptoProvider (Wave 48, R-TR-2) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 7 total
• fix(bootstrap): pre-existing test failures — ternary + cast operator (Wave 47, R-TR-1) #808 fix(bootstrap): pre-existing test failures — ternary + cast operator (Wave 47, R-TR-1) | Created: 2026-05-24 | Updated: 2026-05-24 | 0 failing / 7 total
• feat(bootstrap): end-to-end host stack integration (Wave 46, R-HS-6) #803 feat(bootstrap): end-to-end host stack integration (Wave 46, R-HS-6) | Created: 2026-05-23 | Updated: 2026-05-23 | 0 failing / 3 total
• feat(bootstrap): deterministic weight pattern generator (Wave 45, R-HT-2) #801 feat(bootstrap): deterministic weight pattern generator (Wave 45, R-HT-2) | Created: 2026-05-23 | Updated: 2026-05-23 | 0 failing / 3 total
• feat(bootstrap): ternary weight packer/unpacker (Wave 44, R-HT-1) #798 feat(bootstrap): ternary weight packer/unpacker (Wave 44, R-HT-1) | Created: 2026-05-23 | Updated: 2026-05-23 | 0 failing / 3 total
• feat(bootstrap): --json flag for all host CLI commands (Wave 43, R-HS-5) #796 feat(bootstrap): --json flag for all host CLI commands (Wave 43, R-HS-5) | Created: 2026-05-23 | Updated: 2026-05-23 | 0 failing / 3 total
• feat(bootstrap): host performance model and cycle estimator (Wave 42, R-HS-4) #793 feat(bootstrap): host performance model and cycle estimator (Wave 42, R-HS-4) | Created: 2026-05-23 | Updated: 2026-05-23 | 0 failing / 3 total
• feat(bootstrap): host DMA-driven multi-layer inference flow (Wave 41, R-HS-3) #790 feat(bootstrap): host DMA-driven multi-layer inference flow (Wave 41, R-HS-3) | Created: 2026-05-23 | Updated: 2026-05-23 | 0 failing / 3 total

Summary

Status	Count
Total Open PRs	50
PRs with Failing Checks	31
PRs with All Checks Green	19
READY	18
FAILING	31
PENDING	0