jos/user/idle.c

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2018-10-06 06:52:47 -07:00
// idle loop
#include <inc/x86.h>
#include <inc/lib.h>
void
umain(int argc, char **argv)
{
binaryname = "idle";
// Loop forever, simply trying to yield to a different environment.
// Instead of busy-waiting like this,
// a better way would be to use the processor's HLT instruction
// to cause the processor to stop executing until the next interrupt -
// doing so allows the processor to conserve power more effectively.
while (1) {
sys_yield();
}
}