Free42 is a complete re-implementation of the HP-42S calculator and the HP-82240 printer. Free42 was written from scratch, without using any HP code. You do not need any ROM images in order to use it, yet it is fully HP-42S compatible. Update Description:
- Made auto-repeat for number entry and ALPHA modes optional. The auto-repeat feature, introduced in release 1.4.11, is not found on the real HP-42S, and can cause problems if you don't expect this kind of behavior in a calculator. It can now be turned off in the Preferences dialog, though the default is still for it to be on. Note that this is unrelated to the auto-repeat for the 'up' and 'down' keys, which is authentic HP-42S behavior, and cannot be turned off.