ACLE 2021Q4

List of changes

• The specification are published in HTML format at arm-software.github.io/acle/. The HTML version is generated via GitHub Pages from the markdown sources of the project.
• The PDF version of the specifications is now published following the layout for official Arm official documents. Docker is used to guarantee an uniform output across a variety of machines (see the script build_with_docker.sh in the root folder).
• Main ACLE, with the addition of the followoing macros:
  • __ARM_FEATURE_PAUTH
  • __ARM_FEATURE_BTI
  • __ARM_NEON_SVE_BRIDGE
  • __ARM_FEATURE_MOPS
• Morello ACLE
• MVE intrinsics
• Neon intrinsics

ACLE 2021Q3

List of changes

No changes in the Morello (morello-01alpha.pdf) and MVE (mve-2021Q2.pdf) documents.

List of changes in the main ACLE document (acle-2021Q3.pdf)

• Fix paragraph on lane intrinsics. NFCI. (#14)
• [bugfix] Fix FP16 format description in main ACLE specs (#22)

List of changes in the NEON intrinsics document (advsimd-2021Q3.pdf)

• acle: Correct udot, sdot specification on AArch32 (#19, #20)
• [intrinsics] Use the __ARM_NEON macro for the Advanced SIMD support. (#17)

Acknowledgments

This release sees the contributions of @TamarChristinaArm , @ValeriaDaneva , @MattPD , @fpetrogalli , and Jakub Łopuszański.

First official Open Source release.

These are the PDF renderings of the the first documents released with an open source release.

To contribute and report issues, see https://github.com/ARM-software/acle.

The following documents are included:

Document sources	Latest official release
Arm C Language Extensions	2021Q2
Morello Supplement to the Arm C Language Extensions	01alpha
Arm MVE Intrinsics	2021Q2
Arm Neon Intrinsics Reference	2021Q2

Please note that not all ACLE specifications have yet transitioned to an open source license. Please refer to Arm Developer for the documents missing from this release.