Lock prefix #GP if CPL is less privileged than IOPL in the original protected mode architecture.ġ985 – Intel 80386 released with 32-bit protected mode with paging. It is worth asking the question, “Could these seldom used elements of the architecture be removed to simplify a 64-bit mode-only architecture?”ġ978 – Intel 8086 released with 16-bit real mode.ġ982 – Intel 80286 with 16-bit protected mode released.
#Firefox developer edition nightly software
With this evolution, Intel believes there are opportunities for simplification in our hardware and software ecosystem.Ĭertain legacy modes have little utility in modern operating systems besides bootstrapping the CPU into the 64-bit mode. They retain the ability to run 32-bit applications but have stopped supporting 16-bit applications natively. 64-bit operating systems are the de facto standard today. Intel firmware no longer supports non UEFI64 operating systems natively. As an example of this evolution, Microsoft stopped shipping the 32-bit version of their Windows 11 operating system.
Since its introduction over 20 years ago, the Intel® 64 architecture became the dominant operating mode. The long life of Intel® Architecture has resulted in a rich software ecosystem with an enormous installed base that extends from PCs to the cloud to mobile and from embedded devices to supercomputers and beyond.
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