If the size of the operand is not specified in the instruction, that means either that the size doesn't matter (as in logical instructions, for instance) or that it is using a 32-bit value size.
如果操作数的大小未在指令中指定,这就意味着操作数的大小并不十分重要(例如逻辑指令)或者它的大小为32位。
The program in Listing 7 will try to execute an instruction that will move the value of an MSR to a GPR.
清单7中的程序会试图执行一条将一个值从MSR移动到GPR的指令。
The lower value of CPI means one instruction takes less time to execute. The cycles can be broken down into several parts in terms of how much time is spent in different pipeline stage.
CPI 值低就意味着指令花费的执行时间少。
应用推荐