However, this means that any time a function calls another function, it should assume that registers 3-12 will be overwritten by that function.
然而，这意味着一个函数在任何时候调用另外一个函数时，都应假设寄存器3到12均有可能被这个函数改写。
2
However, since each iteration USES the same number of registers, you can simply calculate the register number at assembly time.
然而，由于每次迭代都使用了相同编号的寄存器，因此您可以简单地在汇编时计算寄存器的编号。
3
The PowerPC uses a load/store (also called RISC) instruction set, which means that the only time it accesses main memory is for loading into registers or copying a register to memory.