This is my actual ROR implementation:

SET_C(CPU.Data&0x01);
CPU.Data>>=1;
if(CPU.FlagC) CPU.Data|=0x80;
SET_N(CPU.Data&0x80);
SET_Z(CPU.Data);
WRITE_MEMORY(CPU.Add,CPU.Data);

but I think there's something wrong. I've thinking on this other version..

if(CPU.FlagC)
{
SET_C(CPU.Data&0x01);
CPU.Data>>=1;
CPU.Data|=0x80;
}
else
{
SET_C(CPU.Data&0x01);
CPU.Data>>=1;
}
SET_N(CPU.Data&0x80);
SET_Z(CPU.Data);
WRITE_MEMORY(CPU.Add,CPU.Data);

but I'm not sure if it's correct at all...

Could anybody help me with that? Thanks!