Assembly Patterns

Canonical patterns and guardrails for x86-64 and ARM64 assembly. Apply to all .asm, .s, .S files and any assembly embedded in C/Rust/Go.

Architecture Selection

Declare the target at the top of every file:

; x86-64, NASM, Linux/macOS
; Target: x86-64 System V ABI
; Syntax: Intel (NASM)