CPU: Added the LZ77UnCompWram SWI
CPU: Fixed a typo in the SWI 3 emulation that caused single cycle waits
GPU: Added the option to display only one of the DS´ screens (useful in fullscreen mode if only one of the screens are used)
GPU: Added support for texture alpha bits (for 16-bit textures)
APU: Optimized the resampling filter a bit, and applied filter to PCM16 samples as well
APU: Added PSG emulation (rectangle waves only)
GUI: Added fullscreen support (toggle with Alt+Return)
GUI: Added a couple more registers to the I/O register viewers


The preferred fullscreen resolution can be specified in dualis.ini.
Some new keyboards shortcuts have been added: Ctrl+Shift+1..Ctrl+Shift+3 to select which of the screens are displayed, and Ctrl+Shift+F to toggle on-screen fps display while in fullscreen mode.
I´ve also written a little PSG demo that plays 3-channel rectangle wave music - you can find it here.