1. What instruction (mov, Idr, Idrb, str, strb) is used to...a. Put a byte from memory into a registerb. Put a register value into another registerc. Put the address of a label into a registerd. Put a register value into a memory addresse. Put an immediate into a register2. Which instruction (move, load, or store) lists the source followed by the destination?3. What punctuation is used to indicate you're reading the address of a label?4. What punctuation is used to indicate the register value is to be treated as an address?5. Assuming the following is at the start of the data section:Array2 dcd 45, 23, 67, 31a. What would be in r0 after 1dr r0, Array2 executes?b. What would you add to rO to have the address point to the 2nd value in the array?6. (Bonus worth 0.2 points) Given our simulator's configurations, etc., if r2 = 0x0800001C,what value(s) in memory would be changed by str r1, [x2] ?

In this question we have to answer assembly program instructions related questions Where we will do…

1. What instruction (mov, Idr, Idrb, str, strb) is used to... a. Put a byte from memory into a register b. Put a register value into another register c. Put the address of a label into a register d. Put a register value into a memory address e. Put an immediate into a register 2. Which instruction (move, load, or store) lists the source followed by the destination? 3. What punctuation is used to indicate you're reading the address of a label?

1. What instruction (mov, Idr, Idrb, str, strb) is used to... a. Put a byte from memory into a register b. Put a register value into another register c. Put the address of a label into a register d. Put a register value into a memory address e. Put an immediate into a register 2. Which instruction (move, load, or store) lists the source followed by the destination? 3. What punctuation is used to indicate you're reading the address of a label?

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter4: Processor Technology And Architecture

Section: Chapter Questions

Problem 26VE: _____ is a CPU design technique in which instruction execution is divided into multiple stages and...

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1. What instruction (mov, Idr, Idrb, str, strb) is used to...
a. Put a byte from memory into a register
b. Put a register value into another register
c. Put the address of a label into a register
d. Put a register value into a memory address
e. Put an immediate into a register
2. Which instruction (move, load, or store) lists the source followed by the destination?
3. What punctuation is used to indicate you're reading the address of a label?
4. What punctuation is used to indicate the register value is to be treated as an address?
5. Assuming the following is at the start of the data section:
Array2 dcd 45, 23, 67, 31
a. What would be in r0 after 1dr r0, Array2 executes?
b. What would you add to rO to have the address point to the 2nd value in the array?
6. (Bonus worth 0.2 points) Given our simulator's configurations, etc., if r2 = 0x0800001C,
what value(s) in memory would be changed by str r1, [x2] ?

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0001 = Load AC from memory 0010 = Store AC to memory 0101 = Add to AC from memory 0011 = Load AC (the accumulator register) from an I/O device 0111 = Store AC to an I/O device With these instructions, a particular I/O device is identified by replacing the 12-bit address portion with a 12-bit device number. Remember that a number ending with a small ‘h’ means the number is a hexadecimal number. What is the hexadecimal string that expresses the following instructions? Load AC from memory location 62h. Add the contents of memory location 451h to AC. Store AC to memory location 8h. Store AC to I/O device number 8h.
0001 = Load AC from memory 0010 = Store AC to memory 0101 = Add to AC from memory 0011 = Load AC (the accumulator register) from an I/O device 0111 = Store AC to an I/O device With these instructions, a particular I/O device is identified by replacing the 12-bit address portion with a 12-bit device number. Remember that a number ending with a small ‘h’ means the number is a hexadecimal number. What is the hexadecimal string that expresses the following instructions? Load AC from memory location 62h. Add the contents of memory location 451h to AC. Store AC to memory location 8h. Store AC to I/O device number 8h.
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7. For both of the instructions shown below, the initial conditions are shown. The result (which the instruction stores in r1) is also shown. For each instruction, answer these questions: • What is the state of the flags (NZCV) after the instruction executes • If the operands were signed, are the results valid? Why or why not? • If the operands were unsigned, are the results valid? Why or why not? a) initial conditions: r0 = 0xAAAA_AAAA rl=0x5555_5555 ADDS rl,rl,ro Result: r1=0xFFFF_FFFF b) initial conditions: r0=0x7FFF_FFFD r1 = 0x0000_000F ADDS rl,ro,r1 Result: r1=0x8000_000C
The store word instruction is used to... A. Read from a memory address to a CPU register B. Write to a memory address from a CPU register C. Assign a value to a CPU register D. Access a label in a program