How to answer this question with explanation. ASAP (i) What actions are performed by the CPU when executing the instruction: PUSH EAXAnswer:Decrement ESP and copy EAX into the stack.(ii) What actions are performed by the CPU when executing the instruction: PUSHADAnswer:Push all the 32-bit general purpose registers on the stack.(iii) What will be the contents (in hexadecimal) of the AL register after executing the following:MOV AL, 80hSAR AL, 3Answer:AL = F0h(iv) What will be the contents (in hexadecimal) of the AL register after executing the following:STCMOV AL, 7AhRCR AL, 1Answer:AL BDh(v) What are the contents (in hexadecimal) of the AX and BX registers after executing the following:MOV AX, 0AC36HMOV BX, 9ВAGҺSHLD BX, AX, 4Answer:AX AC36H,BX BA6AHPage 5 of 8

As per guidelines I can answer only first question. I hope you will understand. Thank You. Q(i)…

Answered: (i) What actions are performed by the…

(i) What actions are performed by the CPU when executing the instruction: PUSH EAX Answer: Decrement ESP and copy EAX into the stack.

Systems Architecture

7th Edition

ISBN:9781305080195

Author:Stephen D. Burd

Publisher:Stephen D. Burd

Chapter4: Processor Technology And Architecture

Section: Chapter Questions

Problem 15VE: A(n) ________________ instruction always alters the instruction execution sequence. A(n)...

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Question

How to answer this question with explanation. ASAP

(i) What actions are performed by the CPU when executing the instruction: PUSH EAX
Answer:
Decrement ESP and copy EAX into the stack.
(ii) What actions are performed by the CPU when executing the instruction: PUSHAD
Answer:
Push all the 32-bit general purpose registers on the stack.
(iii) What will be the contents (in hexadecimal) of the AL register after executing the following:
MOV AL, 80h
SAR AL, 3
Answer:
AL = F0h
(iv) What will be the contents (in hexadecimal) of the AL register after executing the following:
STC
MOV AL, 7Ah
RCR AL, 1
Answer:
AL BDh
(v) What are the contents (in hexadecimal) of the AX and BX registers after executing the following:
MOV AX, 0AC36H
MOV BX, 9ВAGҺ
SHLD BX, AX, 4
Answer:
AX AC36H,
BX BA6AH
Page 5 of 8

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