Best free virtualizer

[einsteinjunior]

Well,IMHO a perfect emulator does not exist in that sense.
It will be very surprising to find one that will emulate all hardware.
So,its best to have a a lot of emulators.
For example DexOs runs well on Bochs but its a mess on Qemu.

[salil_bhagurkar]

I always feel that when an OS can't run on multiple emulators/PCs the same way, it is because of the assumptions it makes about the timings in the hardware.

[Dex]

Well,IMHO a perfect emulator does not exist in that sense.
It will be very surprising to find one that will emulate all hardware.
So,its best to have a a lot of emulators.
For example DexOs runs well on Bochs but its a mess on Qemu.

Now thats a supprise as it works fine on my XP PC, i use the 64bit ver and run a floppy image using this bat file

Code: Select all

@echo off
SET SDL_VIDEODRIVER=windib
START qemu-system-x86_64.exe -L . -m 32 -fda DexOS.ima -soundhw sb16 -std-vga -localtime
CLS
exit

What sort of problems to you have running it ?.
Thanks.

[einsteinjunior]

Well,i run it like you on my PC with windows XP installed.
It boots quite alright but after that the some funnny multicolor scanlines apear on the screen.
You can see the os is running quite alright but there's nothing to be seen on the screen.
Is there something i am not doing right here Dex?
I tried all screen adjeustments i could in qemu without success.
Another point is ,i have never seen the music player in "action" thats i have never heard the music played by the music player.

[Dex]

Heres the image i use just in case
http://dex4u.com/images2/DexOS.IMA
And here is how it runs on my PC.


To hear the player play in a emulator or PC you would need the cable that runs from the cd player to the sound card, later PC do not put these in anymore.
But in the above image i have add a wav player demo called "playwav" that will let you test the sound driver etc.
Hope this helps.

[Amethana]

I can verify einsteinjunior's observation with qemu 0.9.3 and 0.10.1 on Linux, with the file you just provided.

Screenshot:
http://dump.no/files/542e0cea9bd5/qemu.jpg

The white-ish line responds to input, and running the console by moving it to the second-lowest item and pressing enter works.

[Dex]

First thanks for the info to both of you, it seem theres a on off problem with the ver of Qemu, that keep poping up, i will try the latest ver and see if i can repoduced the problem.
But if you read this old post the same problem came and went
http://forum.osdev.org/viewtopic.php?f= ... emu#p14032
Thanks again for the info.