DracoDS v1.7c 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 sound driver for better accuracy. Games like Demon Attack now sound reasonably correct.
Fix for speeds other than 100% on NTSC CoCo emulation.
More tweaks to more games so they play as intended (correct joystick map, Dragonfire colors, etc).
New options to allow Analog sensitivity on a per-axis (X or Y) basis.
New option to boost volume for some games that were a bit quiet (e.g. Demon Attack).
More cleanup and minor improvements as time permitted.
1.7c minor updates to improve CPU and Sound accuracy and slight refactor of code for speed optimization.

Download: DracoDS v1.7c
Source: Here