HelenOS sources

NSACR_NSASEDIS    298 boot/arch/arm32/include/arch/cp15.h 	NSACR_NSASEDIS = 1 << 15,
NSACR_NSASEDIS    298 kernel/arch/arm32/include/arch/cp15.h 	NSACR_NSASEDIS = 1 << 15,
NSACR_NSASEDIS    298 uspace/lib/c/arch/arm32/include/libarch/cp15.h 	NSACR_NSASEDIS = 1 << 15,

HelenOS homepage, sources at GitHub