代码

void sort(unsigned *a, int n) {
	int t2, t3, t4, t5;
	asm (
			"LABEL0:                                 \n"
			"        sub     %1, 1                   \n"
			"        test    %1, %1                  \n"
			"        jle     LABEL1                  \n"
			"LABEL5:                                 \n"
			"        xor     %2, %2                  \n"
			
			"LABEL1:                                 \n"
			"        ret                             \n"
		:
			
		:
			"r"(a),
			"r"(n),
			"r"(t2),
			"r"(t3),
			"r"(t4),
			"r"(t5)
	);
}

评测结果