Re: return to real mode

1999-10-01 Thread Mike Smith
anybody got some reliable, tested, known-good code for getting back to real mode? I'm to the point where I have a working GDT, and paging is turned off, but the last step -- turning off protection enable -- is not working for me. You want to be more explicit about why you want to get back?

Re: return to real mode

1999-10-01 Thread Sergey Babkin
Mike Smith wrote: anybody got some reliable, tested, known-good code for getting back to real mode? I'm to the point where I have a working GDT, and paging is turned off, but the last step -- turning off protection enable -- is not working for me. You want to be more explicit about

Re: return to real mode

1999-09-30 Thread Julian Elischer
the old boot code did it for calling the bios did it not? julian On Wed, 29 Sep 1999, Ronald G. Minnich wrote: anybody got some reliable, tested, known-good code for getting back to real mode? I'm to the point where I have a working GDT, and paging is turned off, but the last step --

Re: return to real mode

1999-09-30 Thread Ronald G. Minnich
well, I'll go check that. I'm finding that there is fair amounts of code out there that is broken. Thanks to the wonderful PC bios you have a hard time sometimes telling the difference between code that crashes into the bios and code that actually works right, since the result is the same either

RE: return to real mode

1999-09-29 Thread John Baldwin
On 29-Sep-99 John Baldwin wrote: GROUP CodeGroup _TEXT32, _TEXT16 ASSUMECS:CodeGroup, DS:_PMDATA SEGMENT _TEXT32 Byte Public Use32 'CODE' db 0EAh dd OFFSET ExitPM dw Sel_CS16 Here's the missing comment for the