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thejayman77 7d68577c75 Ch443f/Ch443e board validation evidence (compact)

Silicon closeout evidence for the Ch443f scanout CDC hardening (commits 064484c +
4110846). Text/hashes/verdict/samples only — RBFs and framebuffer .mem dumps left
uncommitted (preserved local / on board).

Ch443f board verdict: RBF 59c6372e, fit setup +0.068 / all classes clean, fpga0
operating, CORE_ID 0x50533200 ABI 0x100. 311-epoch f52 replay DONE rc=0 zero
drops, FB byte-identical golden d0047677. Scanout diagnostic 120 samples (60 @
50ms + 60 @ non-harmonic 7ms) all identical: 0x02C=0xD1 (scan-error clear),
0x120=0x18 (qualified valid=0 / underflow=0 / read-error=0 / live pmax=0). The
two phase-sweep logs are byte-identical -> no phase-dependent CDC artifact. The
former residual "underflow" was purely the raw-readiness CDC/sync transient; the
Ch443e 4-buffer/lead-2 already fixed the real lookahead starvation. No fifth
buffer justified.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

2026-07-24 20:11:11 -04:00

contracts

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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decisions

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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hardware

Ch443f/Ch443e board validation evidence (compact)

2026-07-24 20:11:11 -04:00

ch257_codex_brief.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch258_outcome_and_ch259_brief.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

ch259_outcome_and_ch260_brief.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

ch261_arbitration_bug_brief.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch261_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

ch262_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch263_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch263_pre_impl_brief.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch264_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch265_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch266_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch267_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch268_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch269_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch270_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch271_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch272_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch273_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch274_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch275_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch276_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch277_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch278_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch279_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch280_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch281_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch282_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch283_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch284_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch285_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch286_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch287_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch288_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch289_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch290_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch291_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch292_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch293_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch294_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch295_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch296_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch297_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch298_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

ch299_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

ch300_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch301_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

ch302_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

ch303_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

ch304_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch305_closeout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

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ch318-lpddr-fb-bringup.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

ch353_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch354_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch355_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch356_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch357_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch357_zsched_integer_xy_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch358_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch359_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch360_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch361_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch362_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch363_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch364_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch365_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch367_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch368_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch369_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch370_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch371_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch372_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch373_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch374_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch375_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch376_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch377_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch378_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch383_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch384_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch385_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch386_audit_log.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch397_lpddr_alpha_plan.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch400_chronological_base_alpha_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch401_fuller_static_frame_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch402_character_clamp_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch403_authentic_vertex_modulation_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch404_chronological_character_detail_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch405_authentic_alpha_fans_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch406_request_fifo_timing_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch415_fog_bilinear_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch416_subpixel_xy_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch417_native_attribute_gradients_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch418_authentic_display_mapping_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch419_timing_root_and_rabbit_bench_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch420_request_fifo_read_address_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch421_request_packet_boundary_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch422_registered_bilinear_output_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch423_control_free_data_stages_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch424_full_population_subpixel_repair.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch425_postprocess_bisection_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch426_authentic_vertex_alpha_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch427_complete_alpha_family_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch428_missing_blend_population_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch429_psmt4_character_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch431_direct_color_character_highlights_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch432_perspective_bilinear_handshake_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch432_perspective_bilinear_handshake_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch433_uv_optimized_stq_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch434_current_frame_lightbuffer_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch435_frame_fbmsk_lightbuffer_closeout.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch436_linear_scanout_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

ch437_horizontal_linear_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch438_binomial_scanout_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

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ch439_timing_convergence_prefit.md

Snapshot: fog implementation + fidelity tooling baseline (pre bilinear-clamp fix)

2026-07-20 19:56:46 -04:00

phase0_checklist.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

README.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

repo_layout.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

stub_module_plan.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

wave2_dma_gif_plan.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

wave3_bios_iop_sbus_recon.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

wave25_memory_backed_dma_plan.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

wave26_multi_beat_dma_plan.md

Initial commit: retroDE_ps2 — first-of-its-kind PS2 GS FPGA core (DE25-Nano / Agilex 5)

2026-06-29 20:10:50 -04:00

README.md

retroDE_ps2 Planning Docs

This directory is the working design scaffold for the PS2 core.

Purpose:

define the intended repository shape before RTL lands,
define subsystem boundaries before implementation choices harden,
document what each block owns, what crosses the boundary, and how we will validate it.