Testing of Dualis 12.
Changes from last time are flagged with (*); new demos are flagged with (**).

BIN
===
2d-emu : works
2dexample_arm9 : works
4sprites : top screen black, bottom screen white
4tiles : works
armwrestler : works
balltest : works
battleship : works, touchscreen pointer is out by a little bit. When both playboards are visible, I couldn't proceed.
birds_arm9 : white screen
birslip : works
bug : works
calc_arm9 : works, keypad display is missing
carre : freezes at the start
cassebrique : works
cube_emu : works
davr1 / davr3 : black screen
davr2 : usual white screen
dc_flash : emu crashes
draw_arm9 : same as 4sprites
drops_arm9 : works (*)
dskonga : intro screen disappears before the instructions can be read; otherwise it seems to work; needs IPC v1
dsmode4 : both work
dspaint, dspaint_r4 : cannot choose bottom colour needs IPC v1
dspaint2 : works, need IPC v1
duckhunt : works, needs IPC v1
earth : works, need IPC v1 (press R to fire)
first1 : WORKS
follarium : WORKS needs IPC v1
footjonglage : works, needs IPC v1
hello_paint : works
hello_world : works
joats_template : bottom screen changes colour when clicked on
maptiles : crash
mcommand : black screen
mines_arm9 : top screen black, click to show playfield, then no response needs IPC v1
mines_arm9a : top screen black, graphics corrupt needs IPC v1
mode3pac : works
mode6 : works
musk : works, needs IPC v1
nibbles10 : works, needs IPC v1
oil_panic : works, boolean version has the boolean problem
panda_forth : same as 4sprites
pongDS : works except the ball is missing
rotshape : black screen
ship_emu : works
sman : bottom screen flashes various shades of red
smantouch : works; needs IPC v1
smeal_arm9 : white screen
snakes : works, needs IPC v1
sponge_arm9 : brownish screens
taupesDS : WORKS; needs IPC v1
tetris : works
tetris-1p : works bug-free only from a fresh start
tetris-2p : works only from a fresh start, need X/Y keys
texture_emu : white square in top screen
tile02 : works, out by a character, needs IPC v1
tri_emu : works
under_pressure : works, needs IPC v2

NDS
===
birds : works, needs IPC v1
breakout : WORKS, use touchscreen to move bat, needs IPC v2
carre : crashes emu
color : WORKS
drugwars : WORKS
earth4b: WORKS
earth7, earth10 : crashes emu
electroplankton : white screens
ext_palette1 : runs; all keys acknowledged, only BG0 and BG1 change the image(*)
ext_palette2 : lots of problems; top screen is white (text missing)(*)
famicon_wars : white screen
fearog3d : crashes emu
follarium : WORKS, needs IPC v1
framebuffer_demo1 : WORKS(*)
frisbee : crashes emu(**)
ganbare : white screen
gorilla : WORKS
gridChallenge : WORKS(*)
gridlockDS : WORKS
guru_guru : white screen
hello_world : WORKS(*)
homebrew2 : WORKS
iro : WORKS from a fresh start(*)
jwpoolDS : black screen
keyboard : when clicked it crashes emu(**)
largemaps : crashes emu(**)
magic_lines : runs, my opinion is the playboard is on the wrong screen
meteos, metroid : white screen
mixed_cubes : crash
nds_wins : WORKS very fast! Needs IPC v1
nds_wins1 : WORKS ! Needs IPC v1 (*)
ndsmemo : No touchscreen; Needs IPC v1, or you get an ARM7 error message
neoflash : crashes emu
nesterds : crashes emu(*)
nibbles : WORKS
nibbles11 : works needs IPC v1
oil_panic : boolean problem
omalone : works (i think)... needs IPC v2
pingpong : black screen
polarium : crashes emu
sgolfDS : WORKS
shootds : works, touchscreen pointer out a bit..needs IPC v1
smb : crashes emu
sound_demo1 : WORKS
space_invaders : crash
sphere : black screen
sponge : WORKS
sprite : crash
sprite1 : crashes emu(**)
sram_demo1 : copy failed
submarine : white screen
super_mario_64 : crash
table_hockey : white screen
tetris10 : works, need X/Y/L/R keys(*)
tetris11 : works
tetris12 : WORKS
text : starts up, when touched it crashes emu(**)
texture : black screen
tqueen, tqueen1 : WORKS; needs IPC v2
transformer : crashes emu
trauma_centre : white screen
tromino : starts up then tiling not working as expected; keyboard erratic; X/Y keys do something(*)
username : starts up, when touched it crashes emu(**)
viewer : crashes emu
work_brain : white screen(*)
xrickds : WORKS (*)
yasfcave : WORKS (*) - use A key to go up
YatzyDOS : WORKS (*)
zelda : white screen

Summary
-----------
1. Some more demos are working
2. The X/Y keys work sometimes - but not in the Tetris games. (Press A for X; press S for Y)

I maybe wrong but the the tetris games use an X/Y method that doesn't work on hardware. They check bits in the standard key register whereas they should be checking for them in the ARM7-only keys register. They were probably written in the early pre-hardware emulator days. Can anyone confirm if they work on hardware?

DSEmu implements both the hardware scheme and that used by the tetris games to be backwards compatible. Although I may stop the compatibility one day if it proves to be a problem.

Mic's readme file has no reference to X/Y keys; perhaps it's still being worked on. The really unfortunate thing is that I don't have a real DS to test all these demos on. Certainly if it works in hardware it should be emulated; if it doesn't work on hardware it should be thrown out.

A is X and S is Y. What doublec said sounds familiar, having looked at the source of an early tetris version, but I'm not sure.