I am familiar with assembly language on other computers but I am new to ARM assembly language. I have started reading "Raspberry Pi Assembly Language" by Bruce Smith. That book provides an intro to the ARMv8 A32 and T32 instruction sets, but nothing about the A64 instructions on my Pi 3. I went to infocenter.arm.com to download the ARMv8-A Reference Manual as a PDF and that site said "This document is only available in a PDF version to registered ARM customers."
I posted a question to ARM support: How much does it cost for a home hobbyist programmer to become an ARM customer in order to download this one manual? Do they have a discount for non-corporate developers?
I realize the manual is big (5,000+ pages) but I am only interested in the "A" chapters.
Where to others go for the complete descriptions of the ARMv8 instructions?