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ipxe/src/arch/i386/core/nap.c

nap.c 370B
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  1. 

  2. #include <realmode.h>

  3. #include <bios.h>

  4. 

  5. /**************************************************************************

  6.  * Save power by halting the CPU until the next interrupt

  7.  **************************************************************************/

  8. void cpu_nap ( void ) {

  9. 	__asm__ __volatile__ ( REAL_CODE ( "sti\n\t"

  10. 					   "hlt\n\t"

  11. 					   "cli\n\t" ) : : );

  12. }