680: z80 emulator for 68k calculators
=====================================

Astrid Smith  
Project started: 2010-06-06  
GPL


## Useful resources:


* [68k timings](http://www.ticalc.org/pub/text/68k/timing.txt)
* [z80 instruction set in numerical order](http://z80.info/z80oplist.txt)
* [More z80 instruction set reference](http://nemesis.lonestar.org/computers/tandy/software/apps/m4/qd/opcodes.html)
* [Details on flags and other side effects](http://www.gaby.de/z80/z80code.htm)