Hmm. I thought I had logged in before posting the previous message. Guess not. FWIW, my name is Doug Taylor (member name dtaylor) and my e-mail address is doug-taylor+@osu.edu.

uhm dosbox uses opengl that might mess it up.

try this
DOSBOX_MIXER_NOSOUND=true ./dosbox

if that doesn't work wait for the next version of dosbox as that one doesn't use opengl by default

Tried it. It gives me the same error message. Guess I'll wait for the next release. Thanks.

I don't think it would be very useful. s390 machines are quite limited in processor power. Unless you have something like top-of-the line z900 machine it doesn't even come close to an average x86 desktop computer. And that's certainly not enough for a demanding program as dosbox is. On the other side, I don't see any reason why it's not working if it compiles ok...

Not useful, you say? Heh. What part of "just for fun" didn't you understand? 😀

From what I've been told, the virtual machine I'm on emulates something like a 300 or 400 MHz machine. Given the fact that that this same mainframe is simultaneously running three or four other, similar virtual Linux boxes plus a couple of MVS batch regions plus three or four CICS regions plus I don't know what else, I'd say that's moderately impressive.

But no, I don't expect it will run DOSBox all that fast. I just think it would be cool to be able to run DOS programs on a mainframe.

Sure I understand the fun part 😁 I remember the first time I was compiling BitchX on a P390...it took about 2.5h and the only thing I wanted is to go to irc any type uname -a 😜 Mainframes have a really good I/O performance and I guess having a few gigs of ram also helps, but most of the stuff that's running is not that processor intensive. I've seen a mainframe being taken down when a single linux app was stuck in a loop....depends on your configuration, your boss might not be happy if dosbox takes all the resources 😉 😉

Just downloaded v .6.2. It actually runs on the mainframe. It's slower than molasses in January, but I'm amazed it runs at all. I'll be playing with frame-skip and stuff like that to see how fast I can get it to go. Hoo-ha!

Look at the dosbox wiki, I've written a guide for dosbox on low-end hardware (well, for some definition of "low-end" 😀 ). It shows how I get dosbox running mostly acceptable on my 333MHz laptop, perhaps that helps.