https://sourceware.org/legacy-ml/binutils/2010-12/msg00465.html
Joseph S. Myers - Re: [PATCH] MIPS: microMIPS ASE support
josephmyerspatchmipsase
https://android.googlesource.com/kernel/common/+/79bd336c7a94039e3d325195b978a04f3b89d2f3/arch/mips/mm/uasm-micromips.c
arch/mips/mm/uasm-micromips.c - kernel/common - Git at Google
archmipsmmuasm
https://www.openwall.com/lists/musl/2016/03/21/5
musl - Re: [PATCH] Fix pthread_arch.h for microMIPS
muslpatchfixpthreadarch