Machine-translated by Google. Questions are authored in English.
Top

Discussion

Comparing RISC with CISC for a small battery-powered device, RISC is generally preferred because

  • A.it needs no compiler
  • B.it can address a larger memory space than CISC allows
  • C.its simpler decode logic costs less silicon and less power
  • D.its programs occupy less memory than the equivalent CISC programs

Answer: C

Simplicity of decode is where the saving lies, and it shows up as both die area and switching energy. Code density is usually the CISC machine's advantage, which is why compressed instruction sets such as Thumb were introduced to claw some of it back.

No comment is present. Be the first to comment.
Loading…

Post your comment

Please log in or register to post a comment.