S40 is not really fast enough for dosbox... even if it was it would only be limited to java....

we should try, see how JPC done,
but just make it more smaller heap size 😀

Doraemon wrote:

Since there are still many people that not rich...

DOSBox works fine on Athlon XP and above computers.

Use a computer for DOSBox, not a phone. Then you don't have to be "rich".

If Dosbox can't run properly on a phone then JPC surely isn't going to, either. It's a nice emulator but it's not nearly as optimized as Dosbox is. Besides that it has major compatibility problems.

so... hopefully anyone pro on java can start this project 😜

dosfreaks, mobile phone is easy to carry so i can play dos game at anywhere but computer isn't so easy...

Get a 9" Netbook. Or a PSP, it can run Dosbox and play EGA games decently (not really VGA though, last I checked, they're too slow). Either way, the only way you're gonna run DOS games on your phone is if you wait about 7 years for them to become fast enough.

dosbox has been ported to java

Note:
"Since there are still many people that not rich..."

anyway i just asking, really hoping to do it in java

I've tried the native S60 executable of DOSBox on my S60 phone and it was too slow to do run pretty much every DOS game made after 1992. Running a java version on a S40 phone would be several times slower, and therefore rather pointless and not really worth the effort.

Absolutely impossible. S40 phones aren't even powerful enough to run a native DOSBox port.
Get yourself a fast and cheap Android phone (e.g. Samsung Vibrant), those are powerful enough to run modern classics like Doom or Ultima Underworld.