3. Show the MIPS instructions that implement the following pseudoinstructions. (a) beq $t1, imm31:0, L (b) ror $s4, $t6, 31 (rotate $t6 right by 31 and put the result in $s4) (c) bgt $t3, $t5, L (branch to address L if $t3 is greater than $15) (d) bge $13, $t5, L (branch to address L if $t3 is greater than or equal to $t5)