DOS ain't dead

XMSDSK bug (HIMEMX > 2 GB): 100 MB RAM disk uses 1 GB (Users)

posted by Rugxulo , Usono, 01.11.2011, 01:39

(part one, 26 Oct. 2011):

> Thanks, or tell him "thank you" for me, if you want. I'll DL that soon.
>
> Unfortunately, I'm delayed for a while at looking into the HIMEMX issue on
> an old machine (64MB vs. 256MB). But, when I do, I may need you to pass on
> the info to Japheth on BTTR.

(part two, 31 Oct. 2011):

> Well, HIMEMX does work correctly for that old machine.
>
> It works with /X. It should work without /X though. I thought I tried /X
> and /NOABOVE16 separately, but I must've tried /X with /NOABOVE16.
>
> The E820h map seems correct to me, so I'm not sure why HIMEMX needs to use
> E801h. Here are the three BIOS memory functions HIMEMX tests returns these
> values in real mode:
>
> INT 15h,AH=88h pass 468KB
> INT 15h,AH=E801h pass 0015360:0245696:0015360:0245696KB
> INT 15h,AH=E820h pass
> 0000000000000000:000000000009F800:001
> 000000000009F800:0000000000000800:002
> 00000000000E7000:0000000000019000:002
> 0000000000100000:0000000003FFD800:001
> 00000000040FD800:0000000000002000:003
> 00000000040FF800:0000000000000400:004
> 00000000040FFC00:000000000BF00400:001
>
> HTH,
>
> Rod Pemberton

Complete thread:

• XMSDSK bug (HIMEMX > 2 GB): 100 MB RAM disk uses 1 GB - Rugxulo, 25.10.2011, 21:28 (Users)
  • XMSDSK bug (HIMEMX > 2 GB): 100 MB RAM disk uses 1 GB - Japheth, 26.10.2011, 06:47
    • XMSDSK bug (HIMEMX > 2 GB): 100 MB RAM disk uses 1 GB - RayeR, 27.10.2011, 02:17
      • XMSDSK bug (HIMEMX > 2 GB): 100 MB RAM disk uses 1 GB - Japheth, 27.10.2011, 18:57
        • XMSDSK bug (HIMEMX > 2 GB): 100 MB RAM disk uses 1 GB - RayeR, 27.10.2011, 19:38
          • XMSDSK bug (HIMEMX > 2 GB): 100 MB RAM disk uses 1 GB - Rugxulo, 28.10.2011, 19:23
        • XMSDSK bug (HIMEMX > 2 GB): 100 MB RAM disk uses 1 GB - Rugxulo, 01.11.2011, 01:39
          • XMSDSK bug (HIMEMX > 2 GB): 100 MB RAM disk uses 1 GB - Japheth, 01.11.2011, 08:53
            • XMSDSK bug (HIMEMX > 2 GB): 100 MB RAM disk uses 1 GB - Japheth, 03.11.2011, 18:30