Compiling C Programs into MIPS Assembly and Machine Code

sll $t1, $a1, 2

add $t1, $a0. $t1

lw $t0, 0($t1)

lw $t2, 4($t1)

sw $t2, 0($t1)

sw $t0, 4($t1)

1. From the assembly code, what machine code might a MIPS assembler produce?

2. What does this program do? Write the C code for this assembly program.