- Moved the saving/restoring of the interrupt state to bracket each individual test instead of the entire application.
- Removed the IM n test because there is no way to save/restore it.
The Z80 test apps have been updated to exclude the port I/O instructions. This is because it is impossible to have consistent expected port I/O across all systems.
A suite of Z80 instruction test applications has been added to user area 5 of CP/M 2.2 and ZSDOS disk images.
The location of these applications is likely to change.