Final answer:
The MIPS assembly code equivalent to the C statement A=C[0]<<12 involves a lw instruction to load the array element followed by an sll instruction to perform the left bit shift and store the result in register $t1.
Step-by-step explanation:
The C statement A=C[0]<<12 involves accessing an element of an array and then performing a left bit shift operation. In MIPS assembly, assuming the base address of array C is in $s1, the first element can be accessed with an offset of zero. After loading the first element into a register, here $t0, the shift operation is performed and the result is stored into $t1, which represents variable A.
MIPS Assembly Code:
The MIPS assembly code that does the identical operation as the given C statement is:
lw $t0, 0($s1)
sll $t0, $t0, 12
sw $t0, 0($s1)
In this code, $t0 is used as a temporary register to store the value of the first element in C array. The lw instruction loads the value of C[0] into $t0, the sll instruction performs a shift left operation on the value in $t0 (shifting it 12 bits to the left), and the sw instruction stores the result back into C[0].