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** [http://developer.arm.com / ARM Developer Information Centre]<!-- *** [https://developer.arm.com/products/architecture/a-profile/docs/den0024/a latest ARM Cortex-A Series Programmer’s Guide for ARMv8-A] -->*** The ''short'' guide to the ARMv8 instruction set: [https://www.element14.com/community/servlet/JiveServlet/previewBody/41836-102-1-229511/ARM.Reference_Manual.pdf ARMv8 Instruction Set Overview] ("ARM ISA Overview")*** The ''long'' guide to the ARMv8 instruction set: [https://developer.arm.com/docs/ddi0487/latest/arm-architecture-reference-manual-armv8-for-armv8-a-architecture-profile ARM Architecture Reference Manual ARMv8, for ARMv8-A architecture profile] ("ARM ARM")** [httphttps://infocenterdeveloper.arm.com/helpdocs/topicihi0055/com.latest/procedure-call-standard-for-the-arm.doc.ihi0055b/IHI0055B_aapcs64.pdf -64-bit-architecture Procedure Call Standard for the ARM 64-bit Architecture (AArch64)]