Here, you will ultimately be able to read the complete Z88 User Guide, V4, in wiki format.

This is an ongoing work, however. As of this writing, more than half of the Z88 User Guide has been implemented in html by Per Svensson some time ago. We have just recently received the remaining raw material, and will continue his excellent work in the html format.

You can follow this work in our Git repository, here: https://bitbucket.org/cambridge/z88/src/b092d9001dce/documentation/userguide