In case anyone still prefers using HP syntax when it comes to programming in SysRPL or Saturn assembly on their HP49G+ or HP50G:
JAZZ 50G v1.20: http://www.math.uiuc.edu/~handuong/hp48/jazzv120.zip
SDB v1.20: http://www.math.uiuc.edu/~handuong/hp48/sdbv120.zip
These zip files include full documentation (and a brief overview of the software for those who aren't familiar with JAZZ).