Zhang Fuxin wrote: > >> +cflags-$(CONFIG_CPU_LOONGSON2) += -march=r4600 -Wa,--trap > > > > I wonder why this is r4600. I heard the Loongson2 is MIPS IV compatible, > > so r5000 / r8000 / r10000 would be better choices. > > Presently Loongson-2E is nearly MIPS III compatible(with some > self-defined extensions), next version will be mips64 release2 compatible. I see. > -march=r4600 is inherited from loongson-1, -march=mips3 might be a > better choice. Maybe. The 'mips3' maps to -march=r4000, it would assume more memory latency and a slower integer divider then -march=r4600. Thiemo
