Page 2 of 2
Re: Best free virtualizer
Posted: Sat May 09, 2009 9:32 am
by 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.
Re: Best free virtualizer
Posted: Sat May 09, 2009 11:26 am
by 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.
Re: Best free virtualizer
Posted: Sat May 09, 2009 1:32 pm
by Dex
einsteinjunior wrote: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.
Re: Best free virtualizer
Posted: Sun May 10, 2009 8:15 pm
by 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.
Re: Best free virtualizer
Posted: Mon May 11, 2009 2:06 pm
by 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.
Re: Best free virtualizer
Posted: Tue May 12, 2009 2:28 am
by 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.
Re: Best free virtualizer
Posted: Tue May 12, 2009 11:37 am
by 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.
