Suppose r0 = 0x8000, and the memory layout is as follows: Address Data 0x8007 0x79 0x8006 0xCD

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Suppose r0 = 0x8000, and the memory layout is as follows:

Address Data

0x8007 0x79

0x8006 0xCD

0x8005 0xA3

0x8004 0xFD

0x8003 0x0D

0x8002 0xEB

0x8001 0x2C

0x8000 0x1A
a) What is the value of r1 after running LDR r1, [r0] if the system is little endian or big endian?

b) Suppose the system is set as little endian. What are the values of r1 and r0 if the instructions
are executed separately?
· LDR r1, [r0, #4]
·LDR r1, [r0], #4
· LDR r1, [r0, #4]!

Related Book For answer-question

Fixed Income Securities Valuation Risk and Risk Management

ISBN: 978-0470109106

1st edition

Authors: Pietro Veronesi

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Posted Date: Jan 29, 2024 09:08 AM

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Suppose r0 = 0x8000, and the memory layout is as follows: Address Data 0x8007 0x79 0x8006 0xCD

Question:

Expert Answer:

a The LDR instruction loads a 32bit word from memory into a register The value of the word depends on the endianness of the system which determines ho... View the full answer

Fixed Income Securities Valuation Risk and Risk Management

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