DOS ain't dead

huge memory model (Announce)

posted by kerravon , Ligao, Free World North, 22.11.2022, 16:30

When I started writing PDOS/86 I didn't know
what "huge" actually was, and I thought it was
for strange people.

I chose "large" for PDOS/86 and when I went to
use my memory management routines, written in
pure C90, originally for MVS, I found that I
was stuck - I could only manage 64k, even
though I was using large memory model.

Rather than change my seemingly valid C90 code,
I instead put a hack into PDOS/86.

About an hour ago the hack was finally killed
off and the problem was solved simply by
recompiling with the "huge" memory model and
a 32-bit size_t. With pure 8086 instructions
from Watcom C, but using PDPCLIB as the C
library.

Code available at http://pdos.org

BFN. Paul.

Complete thread:

• huge memory model - kerravon, 22.11.2022, 16:30 (Announce)
  • huge memory model - Guti, 25.11.2022, 10:23
    • huge memory model - kerravon, 25.11.2022, 19:41
      • huge memory model - Guti, 29.11.2022, 06:55
        • huge memory model - kerravon, 29.11.2022, 08:44