【简答题】Mum went to Peter’s bed and said, “I want to borrow Tim’s radio for you?” Peter touched the letter in his pocket (口袋) and said, “Thanks, Mum!” “Today I want to send you a special gift on the radio. It...
【简答题】Mum went to Peter’s bed and said, “I want to borrow Tim’s radio for you.” Peter touched the letter in his pocket and said, “Thanks, Mum ! But you are so tired now.” “Today I want to send you a special...
【简答题】假设考虑条件分支指令的两种不同设计方法如下 (1) CPU A :通过比较指令设置条件码,然后测试条件码进行分支。 (2) CPU B :在分支指令中包含比较指令。 在两种CPU中,条件分支指令都占用2个时钟周期而所有其他指令占用1个时钟周期,对于CPU A ,执行的指令中分支指令占20%;由于每个分支指令之前都需要有比较指令,因此比较指令也占20%,由于CPU A 在分支时不需要比较,因此假设它...