The global semiconductor landscape has reached a historic inflection point as the open-source RISC-V architecture officially secured 25% market penetration this month, signaling the end of the long-standing architectural monopoly held by proprietary giants. This milestone, verified by industry analysts in late December 2025, marks a seismic shift in how the world’s most advanced hardware is designed, licensed, and deployed. Driven by a collective industry push for "architectural sovereignty," RISC-V has evolved from an academic experiment into the cornerstone of the next generation of computing.
Of what little I know, ARM core designs should be relatively easy to repurpose for RISC-V ISA, once the set of extensions normally used becomes certain. Most of the work being in decoders.
So it just comes down to a still new and not entirely stable ISA. Like with network protocols.