Question

Microprocessors : MIPS 32

3. (5 pts) add.d $f15, $fo, $fo does not work. Explain why. 4. Consider three different processors P1, P2, and P3 executing the same instruction set. P1 has a 3 GHz clock rate and a CPI of 1.5. P2 has a 2.5 GHz clock rate and a CPI of 1.0. P3 has a 4.0 GHz clock rate and has a CPI of 2.2. (NEED TO SHOW YOUR DERIVATION and STEPS FOR FULL CREDIT.) a. (5 pts) Which processor has the highest performance expressed in instructions per second?

Answer 1

Please do understand my concern, as per HOMEWORKLIB RULES we are supposed to answer the first question if there is more than one question in a post, your downvote effects my career a lot, if I get a downvote for a wrong answer or incomplete answer I will accept it. Please give a positive rating

there are registers

$f0- $f3 for the floating-point return values

$f4- $f10 temporary registers

$f12- $f14 arguments to subprogram

$f16-$f18 temporary registers

there is no register $f15 defined by the architecture

so the given instruction doesn't work