> The right architecture might be
> something like Windows does
It's absurdly messy and bloated, but YES, they got the multitasking (mostly) ...
> All the apps call for and use system resources
> through calls to a common API not the firmware or BIOS
Exactly. Just the API could be 100 times smal
I suspect the key good task switching is some of it falling on the OS
and some of it on writing apps that "behave" properly or are adapted
to the limits of the system. The right architecture might be
something like Windows does. All the apps call for and use system
resources through calls to a com
> Now the second point is if I remember the "stuff" correctly the
> problem with DOS task switching is having the CPU start again in the
> right place when a session was switched back into the DOS space
The primary problem with multitasking is that you must care about clean
rock-solid sharing of A
Hi,
On Thu, May 30, 2013 at 11:39 AM, Bernd Blaauw wrote:
>
> I'm not familiar with any DOS flavor of all that PAE/AWE stuff that
> Windows allows for some 32bit drivers and programs.
I'm not really a Windows dude, or at least I don't know much about its
internals nor APIs. In case it wasn't obv
Hi,
On Thu, May 30, 2013 at 4:48 AM, Eric Auer wrote:
>
> On the other hand, if all your hardware is virtual
> and you have lots of RAM, you can actually start a
> number of totally independent DOS tasks in protected
> mode. In other words, boot Linux and start as many
> DOSEMU windows as you wan
Eric Auer schreef op 30-5-2013 11:48:
>
> Hi Charles,
The simplest way for DOS in combination with a ramdisk might be:
* compressed disk image file (4GB? 8GB?) with FreeDOS
* use Grub4DOS (Chenall's version from reboot.pro site) to load the
image above 4GB
* image gets decompressed as harddisk, t
Hi Charles,
you have so much RAM on a modern machine, you can
just as well allocate XMS or other memory whenever
you feel like swapping out a task :-) No need to
use a file on a ramdisk. Also, the latter has the
extra complexity that you need DOS to access that
disk, which already needs stabiliza
OK now I'm done my app (mostly) I can think a little more about other
things. This is my first try at initiating an email to everyone and
not just replying. Should work I think.
I may not have made the idea clear awhile back when I was talking
about task switching in DOS and RAM disks. If I und
