Upgrade to Chisel 3.6 and Ubuntu 24.04 LTS #6
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Core Upgrades: - Chisel: 3.4 → 3.6 - Scala: 2.11.12 → 2.12.10 - chisel-iotesters: 1.5 → 2.5 - chiseltest: 0.3 → 0.6 - dsptools: 1.4 → 1.5 - breeze: 0.13.2 → 1.0 - firrtl-diagrammer: 1.3 → 1.6 API Migration: - Replace chisel3.Driver.emit with ChiselStage().emitChirrtl - Replace chisel3.Driver.execute with ChiselStage().emitVerilog - Update type: chisel3.core.UserModule → chisel3.Module - Remove thunk wrappers: () => module no longer needed Docker Improvements: - Ubuntu: 20.04 → 24.04 LTS - Fix pip installation for Python 3.12 - Remove obsolete python3-distutils package - Use --break-system-packages for pip in container Fixes: - binder/postBuild: Fix shell syntax (separate env vars) - Notebooks: Update FIRRTL emission in 4.1 and 4.4 - Validate all changes for Chisel 3.6 compatibility
Chisel 3.6+ requires the compiler plugin to be explicitly loaded. This fixes the Docker build error during notebook execution. Changes: - Add: import $plugin.$ivy.`edu.berkeley.cs:::chisel3-plugin:3.6.+` - Resolves: "The Chisel compiler plugin is now required" assertion error Reference: https://github.com/chipsalliance/chisel3#build-your-own-chisel-projects
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