DOS ain't dead

64-bit DOS (Announce)

posted by kerravon, Ligao, Free World North, 21.03.2023, 03:19

There is a Freedos64 project but I'm not sure what the status is.

The important things are:

1. The concept of 64-bit DOS exists.

2. It will necessarily involve recompiling all executables.

As such, I have my own definition of "64-bit DOS" and tentative executable format.

It's available from the "EFI booting" section of http://pdos.org

It runs PDOS-generic (x64 flavor) instead of PDOS/386.

It uses the COFF executable format.

The API is still the MSDOS-inspired Pos* interface used by PDOS/386.

Note that PDOS-generic is still proof of concept, so it doesn't have the same functionality that PDOS/386 (or MSDOS) has.

Note that other people seem to have a definition of "32-bit DOS" as "must be one of the existing DOS-extender formats so that no executable needs to be recompiled". I don't know whether a 64-bit DOS extender format already exists and is set in stone and the first 5 or whatever people who created one set the definitive set of standards and there can't be a 6th format added, such that those 5 are all legitimate but mine can never be legitimate.

BFN. Paul.

Complete thread:

• 64-bit DOS - kerravon, 21.03.2023, 03:19 (Announce)
  • 64-bit DOS - RayeR, 27.03.2023, 21:11
  • 64-bit DOS - kerravon, 29.01.2024, 04:07
  • 64-bit DOS - segin, 13.06.2024, 20:42
    • 64-bit DOS - kerravon, 16.06.2024, 15:30