Normally when you turn on your computer, it goes through different steps to get started. Intel is just making it official by removing the support for them. But the truth is, those systems wouldn't work on newer computers anyway. Some people might be concerned about these changes, especially if they use older operating systems like DOS or Windows 9X. However, it will still be possible to initiate an x86-32 operating system within a virtual machine, as these systems already rely on firmware emulation alongside emulated components such as graphics and network cards. Although the x86-32 mode will not be completely eliminated, its functionality will be notably restricted. While the removal of ring zero in 32-bit mode may prevent the execution of an x86-32 hypervisor, it is worth noting that the enhanced capabilities and increased memory provided by a 64-bit hypervisor make it a preferable choice. Nonetheless, the absence of direct support for these operating systems on future hardware is unlikely to cause significant inconvenience, as they wouldn't even boot on contemporary UEFI machines. In fact, the vast majority of PC operating systems rely solely on rings zero and three, with the exception of IBM's OS/2 and Novell Netware 4 and above. The elimination of rings one and two, which are no longer utilized by modern software, aligns with historical usage patterns. Intel plans to remove old tech support from newer systems Maximizing the modern software compatibility While some of these changes are quite drastic, their impact on the average computer user may go unnoticed – and that seems to be Intel's objective.
Intel has provided an accompanying 46-page technical white paper that delves into extensive details about the potential modifications. The proposed change involves removing 16-bit and certain elements of 32-bit support from the hardware, resulting in a family of processors that would directly boot into x86-64 mode.īy bypassing the conventional series of transitions, which include shifting from 16-bit real mode to 32-bit protected mode and finally to 64-bit long mode, or even skipping the 16-bit mode altogether and directly entering the 64-bit mode, the envisioned processors would offer a more streamlined and efficient startup experience.
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