Question

30. What does the instruction "BEQ $5, SO, -6" do? It loads register 5 with the value -6. h It subtracts 6 from register 0 and puts the result in register 5. It branches to address 0XFFFFFFFA с. d. It puts the contents of register 0 into the PC if register 5 contains-6 It subtracts 24 from the PC+4 if register 5 contains 0. 31. The MIPS register file has three 5-bit wide ports. Identify them. a. Upper, lower, bottom, and top. b. Two read ports and one write port. Left, Right, and middle. d. Two write ports and one read port. e. Тext, с. binary, and undefined.

Answer 1

Answer 30:

BEQ (i.e Branch if equal) instruction branches if the contents of first register and the second
register are equal.

The syntax of BEQ instruction is :

BEQ {first source register's address}, {second source register's address}, branch address

For example: BEQ $5, $0, -6

The BEQ will branch to address -6 (0xFFFFFFFA in hexadecimal) if contents of $5 and $0 are equal.

Hence the answer is:

c. BEQ will branch to address 0xFFFFFFFA

Answer 31:

The MIPS register file has two read ports and one write port.

Hence answer is:

b. Two read ports and one write port