Lecture 01 Flashcards
1
Q
What part of the computer uses the ‘Fetch-execute cycle’
A
The CPU (Central Processing Unit)
2
Q
What is an ISA?
A
Instruction set architecture
ISAs are sets of instructions understood by a CPU:
- Their encoding into bits
- Their meanings
3
Q
What syntax is this line of code in:
imulq $86, (%rax), %rcx
A
AT&T Assembler Syntax
4
Q
What syntax is this line of code in:
imul rcx, qword ptr [rax], 86
A
Intel Syntax
5
Q
In intel syntax, what type of operation does the following denote:
imul
A
Signed integer multiplication
6
Q
In intel syntax, what type of operation does the following denote:
qword
A
quadword
This means that this is a 64
7
Q
In the following assembler code, what does ‘rax’ refer to?
imul rcx, qword ptr [rax], 86
A
‘rax’ is the name of one of the computer’s registers
