In the ever-evolving landscape of RISC-V ISA, binary translation emerges as a critical enabler for its continuous evolution and innovation, effectively managing any potential fragmentation resulting from new extensions. This can ensure seamless backward compatibility and accelerate RISC-V adoption by offering effortless migration from legacy architectures.

Binary translation is a well-established technology with widespread high-profile implementations. Recognized as an infrastructure or "public utility," it demands open-source accessibility to maximize its benefits for the entire RISC-V community. We recently launched a non-profit initiative to spearhead developing and ongoing stewardship of a free and open multi-ISA binary translation framework.

This presentation provides a progress update on the Open Binary Translation Alliance, summarizes the proposed architecture of the open-source binary translation framework, and showcases a proof-of-concept implementation running on RISC-V.