Problem $6(8$ points$)$: If the instruction set of the MIPS processor is modified, the instruction format must also be modified. If number of registers in the new architecture was $64$ instead of $32,$ then modify the size of the bit fields of an a$)$ R type and $b)$ I type format instruction assuming number of op$-$codes $($and function field size$)$ still remain the same.

Problem $1(20$ points$)$:

$\backslash$table$[[$Compiler A$,$Compiler B$],[$No of instructions,Execution time,No of instructions,Execution time$],[1\mathrm{.}00E+09,1\mathrm{.}1s,1\mathrm{.}20E+09,1\mathrm{.}5s$