# Status Last updated: 2026-07-21 ## Accellera UVM 1.2 **Not supported.** Official Accellera UVM will not compile on stock Icarus or on this fork yet. ## This fork | Area | Status | |------|--------| | Icarus Verilog tree | Fork of `steveicarus/iverilog` (`master` @ merge of SV array ordering work) | | [`uvm/`](../uvm/) | Seeded from IVL_UVM (VerifWorks) — messaging, CLP, stub phases, poor-man’s mailbox/semaphore; **not** Accellera-compatible | | [`examples/hello_uvm`](../examples/hello_uvm) | Smoke TB for the seeded library (`Makefile` included) | | Parameterized classes | **Partial** on `feat/param-classes`: ANSI `class C #(type T = int, parameter int W = 8);` parses into the class scope and elaborates with **defaults**. Explicit specializations `C#(byte)` / overrides not done yet. See [`examples/param_classes`](../examples/param_classes). | | Associative arrays | Missing | | Virtual interfaces | Missing | | Constraints / randomize | Missing | | Covergroups / DPI | Missing | ## Remotes - `origin` → https://github.com/muhammadjawadkhan/iverilog-uvm - `upstream` → https://github.com/steveicarus/iverilog (fetch only for this track)