.

..

x86-64 Assembly: Tutorial - A Quick Guide to the Changes in 64-bit Assembly - Page 1

The x64 Registers - Changes in x64 Registers as Compared to x86.

x86-64 Assembly: Tutorial - A Quick Guide to the Changes in 64-bit Assembly - Page 2

Instructions Compared to x86, Microsoft's x64 Calling Convention.

x86-64 Assembly: Tutorial - A Quick Guide to the Changes in 64-bit Assembly - Page 3

Copy Memory Using 64-bit Registers, Copy Memory Using 128-bit Registers.