Linux Kernel Module Cheat

https://developer.arm.com/products/architecture/a-profile/docs/ddi0406/latest/arm-architecture-reference-manual-armv7-a-and-armv7-r-edition

The official comprehensive ARMv7 reference.

We use by default: DDI 0406C.d: https://static.docs.arm.com/ddi0406/cd/DDI0406C_d_armv7ar_arm.pdf