Microcode-level HP-45 JavaScript Emulator.
HP-45js is an authentic emulation of Hewlett-Packards scientific hand-held calculator HP-45 original hardware, with internal registers display.
All calculations are identical to the original one, and the Forensic Calc Test give the correct result = 9.004076644
Based on Feniellos HP-35 Microcode JavaScript Emulator
http://blogs.msdn.com/b/ashleyf/archive/2010/09/25/microcode-level-hp-35-emulator-in-javascript.aspx