14 lines
230 B
C
14 lines
230 B
C
#include "types.h"
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int ffs(int x)
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{
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int ret;
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__asm__ volatile("clz\t%0, %1"
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: "=r"(ret)
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: "r"(x)
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: "cc");
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ret = (WORD_BITS - 1) - ret;
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return ret;
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}
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