Thanks everyone for the advice. Sounds like using a 32-bit host OS fixes this class of problems. mh On Wed, May 6, 2015 at 6:05 PM, Paul Crawford <psc@xxxxxxxxxxxxxxxx> wrote: > There is a difference in 64-bit vs 32-bit, and it is more than just the > problems of no vm86() call so hardware interrupts are not properly handled > (aside - is that fixed now/soon?). > > I found I could use the MS C6.0 compiler and the 'PWB' (programmers > workbench) for compiling the DOSD software OK under 32-bit Linux, but not > under 64-bit as the dosemu instance would simple exit, as if exitemu was > called (but it wasn’t). While I know MS had a lot of dubious and > undocumented calls, the difference I saw was definitely a memory issue, and > maybe related to the various XMS/EMS extenders that were needed at one time, > when 640k was no longer enough for everyone... > > Regaeds, > Paul > -- > Dr. Paul S. Crawford > c/o Satellite Station > University of Dundee > Small's Wynd, Dundee, DD1 4HN > Email: psc@xxxxxxxxxxxxxxxx > The University of Dundee is a Scottish Registered Charity, No. SC015096 > > -- > To unsubscribe from this list: send the line "unsubscribe linux-msdos" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html -- Martin Hicks P.Eng. | mort@xxxxxxxx Bork Consulting Inc. | +1 (613) 266-2296 -- To unsubscribe from this list: send the line "unsubscribe linux-msdos" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
