Variables starting with `r' in src/cpu

• regflags src/cpu/m68k.h:18
• regname src/cpu/newcpu.h:791
• regs src/cpu/newcpu.c:365
• resident src/cpu/cpummu.h:91
• rmw_varname src/cpu/gencpu.c:90
• rndoff src/cpu/fpp.c:41
• ROMmemory src/cpu/memory.c:309