https://bugs.winehq.org/show_bug.cgi?id=44530
--- Comment #4 from Anastasius Focht focht@gmx.net --- Hello folks,
recently there was some refactoring work on the 32-bit emulate_instruction to fix bug 44636
0x0f 0x20-0x2f
20: MOV Rd,Cd 21: MOV Rd,Dd 22: MOV Cd,Rd 23: MOV Dd,Rd
https://source.winehq.org/git/wine.git/commitdiff/9f103a9e78e4e337026828f15c... ("ntoskrnl.exe: More general implementation of the CRn and DRn registers.")
https://source.winehq.org/git/wine.git/commitdiff/0cbb5d0a146ebb2a80712cab7e... ("ntoskrnl.exe: Add a helper function for accessing registers.")
Sadly the 64-bit emulate_instruction lacks it entirely.
https://source.winehq.org/git/wine.git/blob/HEAD:/dlls/ntoskrnl.exe/instr.c#...
$ wine --version wine-3.3
Regards