DOS ain't dead

Intel mulls cutting ties to 16 and 32-bit support (Announce)

posted by tkchia , 27.05.2023, 13:03

Hello all,

Well, the new proposed mechanism for CPU reset does not look simplified to me:

"The CPU starts executing in 64-bit paged mode after reset. The Firmware Interface Table (FIT) contains a reset state structure containing RIP and CR3 that defines the initial execution state of the CPU."

I wonder why Intel did not decide to do the "more obvious" thing, i.e. allow for a 64-bit long mode without virtual memory paging (cr3).

---
https://gitlab.com/tkchia · https://codeberg.org/tkchia · 😴 "MOV AX,0D500H+CMOS_REG_D+NMI"

Complete thread:

• Intel mulls cutting ties to 16 and 32-bit support - marcov, 25.05.2023, 11:59 (Announce)
  • Intel mulls cutting ties to 16 and 32-bit support - Rugxulo, 27.05.2023, 03:17
    • Intel mulls cutting ties to 16 and 32-bit support - DosWorld, 27.05.2023, 08:18
      • Intel mulls cutting ties to 16 and 32-bit support - tkchia, 27.05.2023, 13:03
        • Intel mulls cutting ties to 16 and 32-bit support - marcov, 28.05.2023, 12:59
          • Intel mulls cutting ties to 16 and 32-bit support - tkchia, 28.05.2023, 15:27
      • Intel mulls cutting ties to 16 and 32-bit support - alexfru, 31.05.2023, 02:22
        • kill AVX instead - Rugxulo, 01.06.2023, 03:07
          • kill AVX instead - marcov, 01.06.2023, 13:36
        • Intel mulls cutting ties to 16 and 32-bit support - RayeR, 06.06.2023, 13:48
    • Intel mulls cutting ties to 16 and 32-bit support - marcov, 28.05.2023, 12:58
  • Intel mulls cutting ties to 16 and 32-bit support - RayeR, 27.05.2023, 13:10
    • Intel mulls cutting ties to 16 and 32-bit support - KormaX, 29.05.2023, 23:52
      • Intel mulls cutting ties to 16 and 32-bit support - RayeR, 30.05.2023, 01:42
        • Intel's X86-S ISA specification document - RayeR, 06.06.2023, 07:25
  • Intel mulls cutting ties to 16 and 32-bit support - glennmcc, 30.05.2023, 22:19