在MIPS汇编中清除寄存器(= 0)的最快方法是什么?
一些例子:
xor $t0, $t0, $t0 and $t0, $t0, $0 move $t0, $0 li $t0, 0 add $t0, $0, $0
哪个效率最高?
performance assembly mips cpu-architecture micro-optimization
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