thejayman77
b29fb17a11
After the fog prune the design clock closed (+0.631ns) but a 310MHz EMIF path missed by 103ps: the Z-req FIFO read-address register u_zc_emit|u_req|raddr_hi1_q[4] fans out to 6 spread M20K blocks. Quartus flagged TMC-20551 (needs more register duplication), which AGGRESSIVE AREA mode was suppressing. That mode is a leftover from the resolved LAB-overflow era; utilization has headroom (ALM 85%, DSP 45%, RAM unaffected by opt mode). BALANCED lets the fitter duplicate the address register to close the path. QSF-only, no RTL change. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
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.
Recommended reading order:
- repo_layout.md
- phase0_checklist.md
- contracts/README.md
- stub_module_plan.md
- wave2_dma_gif_plan.md
- wave25_memory_backed_dma_plan.md
- wave26_multi_beat_dma_plan.md
Relationship to references/:
references/is the research library.docs/is the project-definition layer.
Rule of thumb:
- If a file explains PS2 hardware as it exists, it belongs under
references/. - If a file explains how
retroDE_ps2intends to model, partition, or validate that hardware, it belongs underdocs/.