DOS ain't dead

Protectmode handler called from realmode (Developers)

posted by bretjohn  , Rio Rancho, NM, 13.08.2010, 18:43

> There is another risk that Int 13h might be called recursively. IIRC, Jack
> R. Ellis told me that USBDRIVE.SYS is supposed to do this occasionally.

It's USBDRIVE.COM, not USBDRIVE.SYS, and I don't think it makes any recursive INT 13h calls (I'll verify this before the next release). Jack and I did talk about the possibility of recursive INT 13h calls as a way to design a manageable interface between UIDE and USBDRIVE, which of course never panned out.

Complete thread:

• Protectmode handler called from realmode - Laaca, 12.08.2010, 21:12
  • Protectmode handler called from realmode - ecm, 12.08.2010, 21:24
    • Protectmode handler called from realmode - Laaca, 13.08.2010, 01:46
      • Protectmode handler called from realmode - Japheth, 13.08.2010, 07:31
        • Protectmode handler called from realmode - bretjohn, 13.08.2010, 18:43
          • EDIT: Protectmode handler called from realmode - bretjohn, 13.08.2010, 19:25
            • Volumes vs physical storage media | WAS "Protectmod handl" - DOS386, 26.08.2010, 09:33
              • Volumes vs physical storage media | WAS "Protectmod handl" - bretjohn, 26.08.2010, 19:03
                • Volumes vs physical storage media | WAS "Protectmod handl" - DOS386, 27.08.2010, 03:25
                  • Volumes vs physical storage media | WAS "Protectmod handl" - bretjohn, 27.08.2010, 16:47
                    • Volumes vs physical storage media | WAS "Protectmod handl" - DOS386, 28.08.2010, 01:26
                      • Volumes vs physical storage media | WAS "Protectmod handl" - bretjohn, 28.08.2010, 16:35
                        • Volumes vs physical storage media | WAS "Protectmod handl" - DOS386, 06.09.2010, 20:10