TODO notes in z80.cpp: "This Z80 emulator assumes a ZiLOG NMOS model." (not NEC)

and regarding SCF/CCF flags: "However, people from the Speccy scene mention that SCF/CCF X/Y results are inconsistent and may be influenced by I and R registers." - so, is it wise to base NEC Z80 on SCF/CCF X/Y differences?