This routine performs a lot of integermultiplication.
该例程执行了大量整数乘法。
2
Now, the integer multiply instructions on the SPU are somewhat problematic, especially signed multiplication (using the mpy instruction).
现在，SPU上的整数相乘指令多少有点问题，特别是有符号乘法(使用mpy指令)。
3
n It takes discrete values, multiples of some integer n, and the multiplication factor is the ratio of the Planck constant divided by 2 pi where n takes one, two, three and so on.