DracoDS v1.6 is released. DracoDS is a Tandy Color Computer (CoCo 2) and Dragon 32 emulator for your DS/DSi/XL/LL handheld. The Dragon and Tandy machines were quite similar - both using the same Motorola reference design and, when you really look under the hood, it's pretty clear that the Dragon reverse-engineered some of the Tandy hardware such that it was virtually identical in some spots (e.g. Cartridge pinouts). There are some differences - mainly in the keyboard matrix handling and in some of the disk controller handling. To that end, this emulator is primarily a Tandy CoCo 2 emulator with 32K standard and 64K expanded support but it also works for the Dragon 32 and can be configured as such.

DracoDS Changelog:
Improved accuracy on PIA handling (DDR and masking supported) - sound and keyboard reading more robust. More games read keys/joystick more correctly.
Massively improved .DSK and .CAS type detection and loading. Use START to load game... SELECT to run after loading.
Optimizations to improve emulation speed by 5-10% depending on the game. Tape loading slightly faster.
Dragon32 games default to Black/White vs Artifacting to reflect PAL vs NTSC.
Tandy Coco (NTSC) games now sync to the DS frame drawing to reduce tearing when emulating any games.
Lucifer's Kingdom (CoCo Port) now running correctly.
Katipiller II now runs correctly.
Shamus now runs but there is no sound.
Galactic Attack no longer switches into odd video mode.
Improved Dungeons of Daggorath key mapping.
Lots of cleanups and commenting as time permitted.

Download: DracoDS v1.6
Source: Here