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arch: x86: Add hlt instruction to save power in qemu_idle.c

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Masayuki Ishikawa 2020-05-04 17:28:42 +09:00 committed by patacongo
parent cd8492b612
commit 11bbe3997e
1 changed files with 2 additions and 0 deletions
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arch/x86/src/qemu/qemu_idle.c
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@ -83,5 +83,7 @@ void up_idle(void)
/* Sleep until an interrupt occurs to save power */ /* Sleep until an interrupt occurs to save power */
__asm__ __volatile__ ("hlt");
#endif #endif
} }