In the last 24 hours I've grabbed some new demos, some GBA ones from Zapf_Bandit, and various from other places. Here are test results:

DSemu 3c
-----------
Daleks.gba : works
1942.gba : intro screen appears, press Start, then black screen
cards.gba : coloured patches
lode_runner.gba : freezes
rockford.gba : freezes
4sprites.bin : a mess. The touchscreen changes the background colour of the top screen.
balltest : black
birslip : moving the mouse causes dots to appear. Not clicking, moving...
carre, earth, frogger : freezes
hello_world, hello_paint : black
rotshape : black
carre.nds : freezes
sphere.nds : black
sprite.nds : crashes

DSemu 2g
-----------
same as above, except
lode_runner.gba : intro shows, press Start, screen fills with M and freeze
rockford.gba : crashes
carre : intro then no response
earth : starfield works, no sprites
frogger : screen appears then no response
carre.nds, sphere.nds : black
sprite.nds : black then eventually crash

Gebea
-------
1942.gba : crash
cards : works
dalek : works, slight graphics corruption in menu
lode-runner : works
rockford : works

Ideas 3
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4sprites.bin : top screen flashes different colours, bottom screen has a smilie
balltest : starts then freezes
birslip : no touchscreen
carre : the demo test doesn't work properly
earth : starfield and enemies appear but nothing else
frogger : black
hello_world, hello_paint : intro appears, no touchscreen
rotshape : rotating objects can be seen. bad colours.
carre.nds : black
sphere.nds : multi-coloured triangle with a pink circle
sprite.nds : crashes
balltest.pme : black
carre.pme : same as for carre.bin
rotshape.pme : same as rotshape.bin
sphere.pme : black
sprite.pme : crash

Dualis 8
---------
4sprites.bin : white screen
balltest : works
birslip : works
carre : works
earth : all objects appear, no actual gameplay??
frogger : various bugs (as per other thread)
hello_world, hello_paint : works
rotshape : black
carre.nds : suspect
sphere.nds : black
sprite.nds : crashes

bump

I've obtained even MORE demos - and a new DUMP!

The dump is called Polarium, and of course it doesn't run on any emu. Size = 2,618,816 bytes.

About Polarium (56k warning) --> http://polarium.nintendods.com/index2.html

Now, to the demos

I now have 3 versions of davr_arm9.bin, I have renamed them to davr1.bin, davr2.bin, davr3.bin

DSemu 3c
------------
another_world.gba : black
gbacaster : works, very slow (author said it's slow)
rumblepong : white
skiing : mostly works. To see credits press down-arrow, goes a bit nuts.
tank : works, bombs and scorebar keep flashing. End-game screen missing

davr1 : purple with letters, black at bottom
davr2 : black
davr3 : purple top, black bottom
sman : corrupted graphics
shootds : freeze

DSemu 2g
------------
same as above, except for
skiing : mostly works. To see credits press down-arrow, goes a bit nuts. End-game screens are blank. Credits screen is corrupted.

shootds : black, crashes after a while

Gebea
-------
another_world.gba : crash
gbacaster : graphics totally corrupted
rumblepong : partial "game boy" across centre of screen, followed by a crash
skiing : works!
tank : works!

Ideas 3
---------
davr1, davr2, davr3 : same as DSemu
sman : works! It has a pacman monster moving at the top, and a smily moving about the bottom.
shootds : works! A demo to test accuracy of the touchscreen

davr.pme : black
draw.pme : white
drops.pme : no touchscreen
shootds.pme : works same as above

Dualis 8
---------
davr1 : white at top, black at bottom
davr2 : white
davr3 : white at top, black at bottom
sman : white
shootds : works... the debug info registers the mouse click, but unable to hit target.