release 2019Q4

This is the first release of Application Binary Interface for the Arm® Architecture documents on Github.

In this Github release, only two documents are included:

• Procedure Call Standard for the Arm® 64-bit Architecture (AArch64) - pdf, html
• Vector Function Application Binary Interface Specification for AArch64 - pdf, html

For other ABI documents, please go to: https://developer.arm.com/architectures/system-architectures/software-standards/abi