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SlugArch

PTX-in / cycles-out simulator with Fabric Replay for heterogeneous backend replay. Built on Verilator-compiled RTL extracted from the Gemma FPGA artifact; PTX parsing via the vendored Concordia parser.

Status: under construction. Plan 1 (foundation) scaffolds the workspace and implements the PTX frontend + SlugIR. See docs/superpowers/specs/2026-04-20-slugarch-ptx-cxl-design.md for the design document and docs/superpowers/plans/ for implementation plans.

Build

cargo build --workspace
cargo test --workspace

Plan 1 requires only: Rust stable + Cargo. Verilator is introduced in Plan 2.

Layout

See the design doc for the full repository layout. In Plan 1 the populated crates are slugarch-ir and slugarch-ptx-frontend. Future plans add slugarch-backend, slugarch-verilator(-sys), slugarch-fabric, and slugarch-cli.