:confused: I have a dos program that uses screen mode 12h (640 by 480 4bit ,16 colors) Do you know if the Mac DosBox version is capable of this screen resolution ? The Mac is a MacBook with OS X 10.53 Leoard . Has anyone with a MacBook played any games that used screen mode 12h ? Does anyone have …

It is pure dos I would like to know about. Modern computers take a lot of rom space for devices leaving little of none for a ems page frame.

This is a guide on using ems in dos. With modern computers packed with packed with bios devices in rom. It's getting harder to find space for the EMS Page frame. I have been doing some research on the web and this is what I have come up with so far. It's is possible to adjust you ems manager to get …

DMA transfers are not allowed to cross 64k-boundaries How to fix this: allocate memory starting at 64k page boundaries, like clearing the lowest 16 bits and adding 64k to it (the allocated buffer needs to be 128k in size to be safe). Now in your code you'll notice this address gives an overflow as …

What are the symptoms that make it non-working? How does it behave if you type "loadfix -32" or "loadfix -16" before starting it? :oops: I have not tried loadfix. But I just managed to get dos sound driver's for my motherboard installed. It's not sound blaster mind you. But at least now I can get …

My system does not have a sound blaster card. Just integrated sound. I hope someone with a real sound blaster card can confirm that this works in real dos instead of DosBox. If your system does have a real sound blaster card; please download the program and check it out for me. And let us know if it …

:shocked: I was messing around with a PowerBasic Version of DmaPlay.bas I finally got it to work. Then I decided to get rid of a bunch of subroutines I was not using. It stopped working in DosBox. It was still working very good under XP. I started to compare the differences between this version to a …

It works real good under XP; but I want other OS's to be able to use it. I want to use DosBox for multiplatform support. Which means Linux and Mac OS X. I realize Linux has dosemu which is better then DosBox for my program. But this still leaves Mac OS X. The best and probably only dos emulator for …

I would like to get my Illinois Drvier's Tutor to work properly in DosBox. Doesn't sound like a hard bug to fix if you ask me. I think it would be very easy for to fix this bug. After all a bug is a bug. This bug looks especially easy to fix.

:shocked: I was using PowerBasic compiler and found the following bug. DosBox will not blank the screen when using the following interrupt. It works perfect in dos but messes up in dosbox. It has to do with : INT 10 - VIDEO - ALTERNATE FUNCTION SELECT (PS, VGA) - VIDEO REFRESH CONTROL AH = 12h BL = …

I was messing around with dosbox . booting from dos images. Is it my imagination or does booting from a dos image really speed up dos box. Has anyone else noticed this ? 😮

Yes I tested it out in the windows xp dos environment.

Yes I tested it out in dos under Windows XP. It worked just fined, I then did a test in dos box and vdmsound showing the segments and offsets. And it failed on certian offsets. I also tested a game out on different segments and it failed on some segments. It got the wrong adress and gave me part of …

:exclamation: Yes I posted the same post on VdmSound ! Are VdmSound and DosBox sound routines related !? I have been testing DmaPlay by Mike Huff. I was storing sounds in strings and testing it out. This is what I found. DosBos only works with some Segments and offsets. Other Segments and Offsets It …

:shocked: I have been testing DmaPlay by Mike Huff. I was storing sounds in strings and testing it out. This is what I found. VdmSound only works with some Segments and offsets. Other Segments and Offsets It will get messed up and try to play a sound from the wrong memory location ! Here is the …