#include <gpxe/nap.h>#include <realmode.h>/** * Save power by halting the CPU until the next interrupt * */static voidbios_cpu_nap(void) {
__asm__ __volatile__(REAL_CODE("sti\n\t""hlt\n\t""cli\n\t") : : );}PROVIDE_NAP( pcbios, cpu_nap, bios_cpu_nap );