HelenOS sources

msim_cpu_halt      46 kernel/arch/mips32/src/mach/msim/msim.c static void msim_cpu_halt(void);
msim_cpu_halt      55 kernel/arch/mips32/src/mach/msim/msim.c 	.machine_cpu_halt = msim_cpu_halt,
HelenOS homepage, sources at GitHub