Assembly·Practice drills 3

Drill 15: Why this way — Registers and moves

Explain why the example is written this way rather than another way.

Advanced 5 min read Lesson 76 of 150 Challenge included

What you will be able to do

Explain why the example is written this way rather than another way.

Practice task

Explain why the example is written this way rather than another way.

hello.sASM

.global _start
.text
_start:
    mov $1, %rax
    mov $1, %rdi
    lea msg(%rip), %rsi
    mov $13, %rdx
    syscall
    mov $60, %rax
    xor %rdi, %rdi
    syscall
.data
msg: .ascii "Hello, world\n"

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Easy

Explain why the example is written this way rather than another way.

TEXT · starter

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Next: Drill 15: Make it smaller — Arithmetic

Lesson 76 of 150 · 0% of course