Welcome to the Symmetry or Zim80 project.

This Z80 simulator is targeted for homebrewn Z80 computer where the attached hardware is custom. It is the goal of this project to also simulate the digital electrical signals and therefor allow custom computer hardware to be included in the simulation. You may be required to write some of the custom components yourself, it should be fairly easy to accomplish. Symmerty comes with a set of often used digital components such as memory and gates.

See also the wiki for more information.

Using the WaveDrom json format to generate wave diagrams from recorded signal changes by the LogicAnalyzer. http://wavedrom.com/

Using the Zexlax Z80 excercizer scripts Copyright (C) 1994 Frank D. Cringle Modified by J.G.Harston for zmac compatibility. http://mdfs.net/Software/Z80/Exerciser (CPM.zip)

Using the zmac Z80 Macro Cross Assembler by George Phillips to assmble the Zexlax scripts. http://members.shaw.ca/gp2000/zmac.html

Using the Dgml Xml syntax to generate graphic models of connected signals. Copyright Microsoft. https://msdn.microsoft.com/en-us/library/dn966108.aspx

Thank you all for making this available.