but then virtual-86 mode is set and I can no loger use 32bit real-mode
pointers!
IF you need PM from V86 there is VCPI.
Protected mode isn't the same as flat real mode.
NO, but there is no absolute need to use flat [un]real mode.
flat-real mode, VCPI and DPMI work and how they deal
: [Freedos-devel] Fw: Re: About my driver, HIMEM/EMM386 and
interrupts
To: freedos-devel@lists.sourceforge.net
Received: Friday, 30 October, 2009, 1:16 PM
but then virtual-86 mode is set and I can no loger use 32bit real-mode
pointers!
IF you need PM from V86 there is VCPI.
Protected mode
Is there any site where I can read in very good detail and in a way that
is easy to understand, how flat-real mode, VCPI and DPMI work and how
they deal with other previously loaded systems to avoid collisions?
I don't know about such a site. RBIL however provides much information
about
but then virtual-86 mode is set and I can no loger use 32bit real-mode
pointers!
IF you need PM from V86 there is VCPI.
Protected mode isn't the same as flat real mode.
Yet, there has to be a way, because HIMEM works even though EMM386 is
loaded.
As said, it uses INT $15 / AH=$87
Guys,
I was pretty sure I had got it working before, so I didn't want to just
leave it as it is. What I just did is restart my computer with plain FreeDOS
and wrote, compiled and executed a programme like this:
mov ax,0b800h
mov ds,ax
mov word ptr [100h],1f21h ; draw
I'm building a driver (for DOS)
:-) For what hardware ??
means that the driver will have to do different things to get to the tables
depending
on whether HIMEM, or EMM386, or both, or none of them are currently there.
NO. Just use XMS, it is still available even if EMM386 is additionally
