docs: energy figures + Mermaid pipeline in the README - #7
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Spice up the README with real, reproducible graphics: - new zero-dependency figure generator (crates/theseus-tisc/examples/ readme_figures.rs): a hand-rolled SVG log-log/bar chart emitter fed by the real energy APIs. No new crate deps. - docs/img/cpu-money-plot.svg -- the headline: energy per TISC step vs power-clock ramp, reversible curves sliding below the flat CMOS 1/2 CV^2 floor (offline from the committed rung-0 chardb). - docs/img/sky130-money-plot.svg -- the three device families on the real SkyWater sky130 PDK via ngspice (adiabatic-TG slope ~-0.94, pFAL falls-then-floors, CMOS flat). - docs/img/benchmark-energy.svg -- per-program reversible vs CMOS-equivalent energy (fib, adder) at a fixed ramp. - README: replace the ASCII pipeline with a Mermaid diagram; add an Energy section embedding the three figures. Regenerate: cargo run -p theseus-tisc --example readme_figures (sky130 fig needs the .#char shell: ngspice + sky130 PDK).
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Add graphics to README, generated from the energy model
Figures (all from real repo data)
docs/img/cpu-money-plot.svg): energy per TISC step vs power-clock ramp, reversible curves sliding below the flat CMOS1/2 CV^2floor. Reproduces offline from the committed rung-0 chardb.docs/img/sky130-money-plot.svg): real SkyWater sky130 PDK via ngspice: adiabatic-TG (slope ~-0.94), pFAL (falls-then-floors), static CMOS (flat).docs/img/benchmark-energy.svg): reversible vs CMOS-equivalent for fib/adder at a fixed ramp (~26x and ~43x).Mechanism
crates/theseus-tisc/examples/readme_figures.rs: a hand-rolled SVG log-log/bar emitter fed bycpu_money_plot/money_plot_rung/rom_program_energy. No new crate deps.Regenerate:
cargo run -p theseus-tisc --example readme_figures(sky130 fig needs the.#charshell).Verified: clippy
--all-targets0 warnings, fmt clean, SVGs valid XML.