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Backport changes to naming.adoc #1036

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May 5, 2023
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Backport changes to naming.adoc #1036

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28 changes: 5 additions & 23 deletions src/naming.adoc
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Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,7 @@ an alphabetical name and an optional version number. For example,
"Zifencei2p0" name version 2.0 of same.

The first letter following the "Z" conventionally indicates the most
closely related alphabetical extension category, IMAFDQLCBKJTPV. For the
closely related alphabetical extension category, IMAFDQCVH. For the
"Zam" extension for misaligned atomics, for example, the letter "a"
indicates the extension is related to the "A" standard extension. If
multiple "Z" extensions are named, they should be ordered first by
Expand All @@ -106,16 +106,6 @@ Standard supervisor-level extensions should be listed after standard
unprivileged extensions. If multiple supervisor-level extensions are
listed, they should be ordered alphabetically.

=== Hypervisor-level Instruction-Set Extensions

Standard hypervisor-level instruction-set extensions are named like
supervisor-level extensions, but beginning with the letter "H" instead
of the letter "S".

Standard hypervisor-level extensions should be listed after standard
lesser-privileged extensions. If multiple hypervisor-level extensions
are listed, they should be ordered alphabetically.

=== Machine-level Instruction-Set Extensions

Standard machine-level instruction-set extensions are prefixed with the
Expand Down Expand Up @@ -170,21 +160,17 @@ e.g., RV32IMACV is legal, whereas RV32IMAVC is not.

|Double-Precision Floating-Point |D |F

|General |G |IMADZifencei
|General |G |IMAFDZicsr_Zifencei

|Quad-Precision Floating-Point |Q |D

|16-bit Compressed Instructions |C |

|Bit Manipulation |B |

|Cryptography Extensions |K |

|Dynamic Languages |J |

|Packed-SIMD Extensions |P |

|Vector Extensions |V |
|Vector Extension |V |D

|Hypervisor Extension |H |

|Control and Status Register Access |Zicsr |

Expand All @@ -198,10 +184,6 @@ e.g., RV32IMACV is legal, whereas RV32IMAVC is not.

|Supervisor-level extension "def" |Sdef |

|Standard Hypervisor-Level Extensions | |

|Hypervisor-level extension "ghi" |Hghi |

3+|*Standard Machine-Level Extensions*

|Machine-level extension "jkl" |Zxmjkl |
Expand Down