# Chapter 21: Instruction Encoding and ELF

This chapter has encodings for:

*x86_64 v2*, 
*RISC V 64I*
*Arm V8*


## Instruction Encodings

## x86_64_v2
*Source*: [^1] 

## ARM

## RISCV

### Lots of Bits


[^1]: [Intel](smt here)

[^2]: ()