What is the MIPS equivalent on these pseudoinstructions?

Question

1. rol $t7, $t6, $t8

   This is like:

   sll $t0, $t3, 8 # get rid of bits 31-23
   srl $t1, $t3, 24 #move 31-32 to 7-0
   or $t7, $t0, $t1 # do an or statement
   

   right?

2. What about this one:

   ld   $t2, 0($t8)