Welcome to the Symmetry or Zim80 project.

This Z80 simulator is targeted for homebrewn Z80 computers 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 commonly 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. Copyright (c) 2011-2016 Aliaksei Chapyzhenka http://wavedrom.com/

Using the Zexlax Z80 exercizer 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 assemble 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.

Used http://Z80.info resources, such as the instruction decoding page http://z80.info/decoding.htm.