ka1leE
2021-02-25
FieniChoonin
Skilled2021-02-27Added 102 answers
Jeffrey Jordon
Expert2021-09-09Added 2605 answers
a) The tradional five stage pipeline of IF, ID, EX, MEM, WB can be modified to IF,ID,MEM,EX,WB if we only wabt to support registe indirect addressing.
c) The following illustrates the forwarding path in the modified pipeline.
d) There are several ways that this modified ways that he modified ISA canhave a different instruction count for a given program over the original ISA. The modified pipeline enables the complier to mergeloads and ALU operations, there by reducing instruction count. However, these instructions cannot be merged if the memory operation requires an offset. If a memory operation requires anoff set and we are not able to merge it with abnother instruction, the modified ISA requires an additional instruction to compute the offset value and store it in a register.
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