Stefan Mileschin

Intel has released version 1.2 of its X86S architecture specification. The X86S project, first announced last year, aims to modernize the x86 architecture that has been the heart of PCs since the late 1970s. Over the decades, Intel and AMD have continually expanded x86's capabilities, resulting in a complex instruction set that Intel now sees as partially outdated. The latest specification primarily focuses on removing legacy features, particularly 16-bit and 32-bit support. This radical departure from x86's long-standing commitment to backward compatibility aligns with the simplification of x86. While the specification does mention a "32-bit compatibility mode," we are yet to how would 32-bit apps run. This ambiguity raises questions about how X86S might handle existing 32-bit applications, which, despite declining relevance, still play a role in many computing environments.

https://www.techpowerup.com/326967/i...to-version-1-2