We define the direct address to be the address of the operand in a computation-t

Question

We define the direct address to be the address of the operand in a computation-type instruction or the target address in a branch type instruction. TRUE [] FALSE [] An instruction code is a group of bits that instruct the microprocessor to perform a specific operation. It is usually divided into parts, each having its own particular interpretation. The basic part of an instruction code is its operation part (operation code). TRUE [] FALSE [] In a selective clear operation, the bit pattern in B is used to clear certain bits in A. It a bit in B is set to 0, that same position in A gets set to 1, otherwise it is unchanged. TRUE [] FALSE [] In a mask operation, the bit pattern in B is used to clear certain bits in A. It a bit in B is set to 0, that same position in A gets set to 0, otherwise it is unchanged. TRUE [] FALSE [] Register-reference instructions are recognized by the control when D_7 = 0111 and I =0. These instructions use bits 0 through 11 of the instruction code to specify one of the 12 instructions. These 12 bits arc available in IR(0-11). TRUE [] FALSE [] When a memory-reference instruction with I = 0 is encountered, it is not necessary to o anything since the effective address is already in AR. However, the sequence counter SC must be incremented when D'_7T_3 = 1. TRUE [] FALSE [] A Register-reference or input-output can be executed with the clock associated with timing signal T_3. After the instruction is executed, SC is cleared to 1 and control returns to the fetch phase with T_0 = 0. TRUE [] FALSE [] The instruction ADD adds the content of the memory word to the value of AC. The sum is transferred into AC, the C_out is transferred to E, two timing signals are used T_4 and T_5, and the operation decoder D_1 is also used. TRUE [] FALSE [] An Arithmetic shift left multiplies a signed binary number by 3. TRUE [] FALSE [] An Arithmetic shift right divides the number by 2 TRUE [] FALSE []

Explanation / Answer

1. True

2. True

3. False

4. True

5. true

6.false

7.true

8.false

9.False

10.True                                        

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