Assembly Part 9: Structures And Byte Alignment Flashcards
1
Q
Structure represented as ______ of _____
A
Block, memory
2
Q
The C compiler inserts ____ in structure to ensure correct alignment of fields
A
Gaps
3
Q
Each structure has an alignment requirement of K where K is the _______ alignment of any element
A
Largest
4
Q
How to save space in memory
A
Put larger data types first in structure
5
Q
How to allocate space for block scope declaration
Isn’t time_array[24]
A
Subq $96, %rsp
6
Q
How to allocate space for block scope declaration of struct time_array where sizeif(struct time) is 64 bytes
A
Subq $1536, %rsp
7
Q
File scope declaration: int time_array[24]
A
.align 4
Time_array:
.skip 96, 0 #24 4 bytes elects = 96 bytes
8
Q
File scope declaration of struct time stime_array[24]
A
.align 8
Stime_array:
Skip 1536, 0
