WP34s and 31s: Updating the emulator while preserving all data

[Marcus von Cube]

As Berry has already pointed out, there shouldn't be a loss of your data when you just replace the wp3?sgui.exe file. The only way to lose your work would be either a bad checksum in the wp34s.dat file or an incompatible change to the memory layout. We try to avoid the latter and we've managed it within a mayor version (V3) quite well.

If you are in doubt or if there is an "Erased" message on startup, you can still recover the programs from the "safe copy" of wp34s.dat with help of Neil's disassembler. This will give you a source text of your programs which can be edited and compiled back into the RAM image.