You are given the following function, but it is missing two parts for you to fill in: saving registers in the function prologue and restoring them in the epilogue. Write the prologue and epilogue, saving and restoring whatever registers you need to make this function ABI compliant. Answer: (penalty regime: 0 %) Reset answer 1. text 2 3 foo: 345 4 5 6 67 8 9 10 11 2345 12 13 14 15 # Write your function prologue here add mov slli mul sub add r2, r4, r5 r6, r4 r12, r6, 4 r16, r2, r12 r18, r2, r12 r2, r16, r18 # Write your function epilogue here ret

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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You are given the following function, but it is missing two parts for you to fill in:
saving registers in the function prologue and restoring them in the epilogue.
Write the prologue and epilogue, saving and restoring whatever registers you
need to make this function ABI compliant.
Answer: (penalty regime: 0 %)
Reset answer
1
.text
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4
5
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15
foo:
# Write your function prologue here
add
mov
slli
mul
sub
add
r2, r4, r5
r6, r4
r12, r6, 4
r16, r2, r12
r18, r2, r12
r2, r16, r18
# Write your function epilogue here
ret
Transcribed Image Text:You are given the following function, but it is missing two parts for you to fill in: saving registers in the function prologue and restoring them in the epilogue. Write the prologue and epilogue, saving and restoring whatever registers you need to make this function ABI compliant. Answer: (penalty regime: 0 %) Reset answer 1 .text 2 3 4 5 7 8 9 10 11 12 13 14 15 foo: # Write your function prologue here add mov slli mul sub add r2, r4, r5 r6, r4 r12, r6, 4 r16, r2, r12 r18, r2, r12 r2, r16, r18 # Write your function epilogue here ret
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