Well this isnt really a problem per say. It seems like every game I run under DosBox, the games run a little slow. Some worst then others. My computer is old, but not that old. I dunno. Any ideas?

try this


memsize=63
frameskip=1
core=dynamic
cycles=20000 or if your comp cant handle it cycles=13000

When you start a game use ctrl+F12 to increase cycles. See if that helps. (Make sure your CPU usage does not reach 100%, as it will slow down the game again if it does)

Thanks alot guys :)
That helps alot.

I salute you with my axe. :Titan:

Your welcome

hey guys i have a question about the dosbox. it may be stupid, it's just i don't really know how to use it. well, is there any way when running a game in dosbox to expand from window to full screen? i guess it's something obvious i haven't noticed perhaps? :blink:

In the dosbox.conf file,
find the line

fullscreen=false

And change it to

fullscreen=true
/-

thanks a lot man! and what a fast answer! :w00t:

Also just press alt + enter to change from windows screen to full screen and other way around.

Also just press alt + enter to change from windows screen to full screen and other way around. [/b][/quote]
thanks! :ok:

your welcome

We reply so fast as we get a topic on dosbox problems every week...

It will be over, or at least more problem very soon. :D

ok another problem is that the sound in almost all games i run with vdmsound in dosbox stutters, u...what should i do? :blink:

ok i downloaded Leisure Suit Larry 1 (the oldest one) and it works fine in my computer (Windows XP) so then i downloaded the LSL VGA and i am having a hell of a time getting it to work. I downloaded Dosbox and i still can;t get it to work. :ranting: So can somebody please give me the step by step dummy way to get my game to work before i go insane. Thank you

Already answered here on another topic from the same user.

Could anyone help me on the issue of implementing VDMSound in DosBox, please? Every time i try to run dosdrv.exe from VDMSound folder my Dosbox crashes!!!

AFAIK, these are two separate programs that should not be ran together.

Thank you for your opinion! :kosta:

Both are emulators designed to operate in XP enviroment. Altough they do work via different means (IIRC, VDMsound emulates just old soundcards, while DosBox emulates entire x86 machine), attempt at running them both at once or running XP-operating VDMSound from DosBox will result in a crash. :not_ok:

Also, I don't know why the heck would you try to run VDMSound under DosBox :not_ok: , as the latter already includes complete emulation of Sound Blaster 1, 2, Pro1, Pro2 and 16 as well as Adlib and some others I did not even care to remember. So when you have DosBox, VDMSound is obsolete. LOL

VDMSound works better with many of the games, as it emulates only sound and uses less resources.

That's only one part of the equation... some games won't run under Windows at all...

But still that does not make CDMSound absolete.

For example Duke Nukem 3D runs nicer with VDMSound.

You right, some games will not work, but there is still good use for program.

I tried out about 30 games in Dosbox and VDMSound, and I can say that generally DosBox works better than VDM with some of the games

Many more games will work on DOSBox, as VDMSound works only with title you were able to play without it, but did not have a sound.

A lot of games work with VDMSound under XP. However, DOSBox does not only emulate sound only. Only the fact that you can set up the speed of the game makes it superior to VDMSound, and it's only one feature among a heap of other... :)

well, when you have a slow computer, vdmsound is the only way you can run old games at a good speed (i wish that the coders of dosbox would REDUCE THE REQUIREMENTS for a stable speed)

The problem here is emulation. Emulating anything always takes a lot of raw processing power, whatever the kind of emulation. I remember having trouble running SNES emulators with pentium machines when you'd expect an original SNES to have less processing power than a 486... :whistle:

dosbox isn't very optimized imo. the reason i say that is my experience with dosbox and vmware(which also emulates a pc, like dosbox) and i have found that vmware runs dos AND windows 95/98se a lot faster than dosbox emulates just dos and the virtual hardware in vmware is more powerful than dosbox (dosbox = 486, vmware = pentium + upwards) so its poor optimization thats down to crap performance in dosbox.

vmware doesn't emulate if you the target machine and the host are the same platform.
it virtualizes then.


Compare dosbox to bochs if you want a real emulator vs a real emulator.

But if you are so unhappy about why not optimize it yourself.

im running windows xp, if i use vmware(which does emulate a computer - albeit a computer you have to set up from scratch), im usually running dos (either freedos or ms-dos 7.1) so they would technically be on different platforms (even if 1 is "virtual" aka dosbox and vmware) all dosbox is a emulator that comes set up with an operating system alredy "installed" vmware is an emulator in that same respect except that vmware requires you install a operating system onto the virtual hardware yourself

edit - im no programmer so i would have no clue how to optimize it. i'd optimize it if i knew how to code/program but i don't so i am unable to optimize it.

that still doesn't say a thing about how the code is executed.

both the host (winxp) and the target(freedos) is x86 code.
So vmware virtualizes the instructions. which is much faster.

it can be compared to the dynamic mode of dosbox (core=dynamic) of dosbox.

as you are no programmer how can you claim then that dosbox is unoptimised!


Remember that you needed a highend 486 to emulate a snes in asm (which runs at 3.87 Mhz)
so if you want to emulate a 33 mhz machine (with portable code) a 2 ghz machine is very reasonable requirement.

LOL LOL LOL

Good one Data, but wrong. Even if systems are the same, it's still emulation, same as DOSBox, WinUAE,.... Emulating of hardware. Only difference is that DOSBox also emulates software.

How can he optimize DOSBOx?