When a branch is taken, the address of the next instruction to execute is computed by
A) Adding the PC to an offset
B)Concatenating an immediate field to the current PC
C) None of the above
D)Adding the immediate to a general purpose register
When a branch is taken, the address of the next instruction to execute is computed by...
In a load instruction, the effective address is obtained by A) Retriving the address from a register in the processor B) Adding the PC to an offset C)Adding a Register to an offset D) None of the above
The ALU output for the branch-on-equal instruction is used to determine the sign-extended, lower target address if the result of the subtraction in the ALU is not zero. PC+4 added with the 16 bits of the offset shifted left by two in the instruction field, as the new branch a. False b. True
The ALU output for the branch-on-equal instruction is used to determine the sign-extended, lower target address if the result of the subtraction in the ALU is not...
HELP ME WITH TRUE / FALSE and Multiple choices. Fixed-width instructions make it difficult to decode because the number of bytes each instruction is using can change. True False A register is incremented by either a byte or a word to advance to the next element in an array with Indexed Addressing. True False The "la" instruction is an example of a pseudo-instruction. True False PC-relative addressing uses the program counter as the base address. True False PC-relative addressing uses...
Solve the following problems clearly - assembly - computer
organization and architecture- william stallings
1)
2)
Let the address stored in the program counter be designated by the symbol X1. The instruction stored in X1 has an address part (operand reference) X2. The operand needed to execute the instruction is stored in the memory word with address X3. An index register contains the value X4. What is the relationship between these various quantities if the addressing mode of the instruction...
Questions 6-10: Prior to execution of the instruction MOV CX,[1234H) - following are the information given on the state of the processor CS = 0100H; DS=0200H; IP = 0000H; CX = 8B3AH Machine code for the above instruction=8B0E3412H; Answer the following questions 6-10 given below related to this instruction - 6. What is the content of the destination-operand prior to the instructions execution? a. 1234H b. 43211 c. 8B3AH d. 3A8BH e. Unknown 7. What is the content of the...
Question 5 0.25 pts What is the value of the MemWrite control signal? Question 6 0.25 pts What is the value of the ALUSrc control signal? Add Add Sum--(1 4 Shift left 1 Branch MemRead Instruction [6-0] ControMemtoReg MemWrite ALUSrc RegWrite Instruction [19-15]Read Read register 1 Read Read data! PCaddress Instruction [24-20] Zero ALU ALU result register 2 Instruction 31-0 Instruction [11-7 Read1 Address data | Write Read register daiaALU | M Instruction memory Write data Registers Write Data data...
A C program has been compiled into the Atmel AVR assembly
language. The following instruction, which is located at address
0x002A, is executed:
i.) What is the binary value contained in the instruction
register (IR) when the instruction is executed?
ii.) What is the hexadecimal value of the program counter (PC)
when the instruction is executed?
iii.) If register r1 = 0x40 and register r2 = 0x02 prior to
executing the instruction, what are the contents of r1 and r2...
A BALR instruction appears in a program on line 00C. The instruction itself is 2 bytes long. The next line contains an assembly USING directive. There is a variable called FIELD1 defined at line 2DA. (a) What is the displacement that will appear in an instruction which references FIELD1? (b) Assume the BALR instruction reads BALR R10,0. What does this instruction do? (c) What do we call R10? (d) In order to refer to the register as...
(d) 7650 (e) None of the above Question 7 [18 Points]-Instruction Set Architecture (ISA) I. Suppose an instruction set has 32-bit instructions. Every instruction has an 8-bit opcode and a 12- bit immediate operand. Some instructions have three register operands (two sources and a destination register). Every instruction that uses registers must be able to specify any of the registers. How many registers can this instruction set support? (a) 32. (b) 64. (c) 16. (d) There is not enough information...
The Fibonacci sequence F is defined as F(1) = F(2) = 1 and for n>= 2, F(n + 1) = F(n) + F(n − 1) i.e., the (n + 1)th value is given by the sum of the nth value and the (n − 1)th value. 1. Write an assembly program typical of RISC machines for computing the kth value F(k), where k is a natural number greater than 2 loaded from a memory location M, and storing the result...