From 9458b612ca034d6b9305471700c2003407a6c58b Mon Sep 17 00:00:00 2001 From: Luke Kenneth Casson Leighton Date: Mon, 14 Aug 2023 19:02:42 +0100 Subject: [PATCH] minor rework of po9_encoding table --- openpower/sv/po9_encoding.mdwn | 38 +++++++++++++++++----------------- 1 file changed, 19 insertions(+), 19 deletions(-) diff --git a/openpower/sv/po9_encoding.mdwn b/openpower/sv/po9_encoding.mdwn index 0ba5c96b9..7d047ca64 100644 --- a/openpower/sv/po9_encoding.mdwn +++ b/openpower/sv/po9_encoding.mdwn @@ -70,34 +70,34 @@ is required (identifying whether the Suffix - Defined Word-instruction - is Arithmetic/Logical, CR-op, Load/Store or Branch-Conditional), adding "Unvectorizable" to this phase is not unreasonable.* -# New 64-bit Instruction Encoding spaces +# New Prefixed Instruction Encoding space **Proposal: Add new Section 1.6.5 to Book I** -The following seven new areas are defined within Primary Opcode 9 (EXT009) -as a new 64-bit encoding space, alongside Primary Opcode 1 -(EXT1xx). - -|0-5| 6-29 |30 31|32-37 | 38-63 | Description | -|---|--------|-----|--------|--------|------------------| -|PO9| xxxx | x x | 010001 | //// | RESERVED(1) | -|PO9| xxxx | x x | 000001 | //// | RESERVED(2) | -|PO9| !ZERO | 1 1 | !PO9 | nnnn | SVP64Single:EXT200-263 | -|PO9| 0000 | 1 1 | !PO9 | nnnn | Scalar EXT200-263 | -|PO9| SVRM | 1 0 | !PO9 | nnnn | SVP64:EXT200-263 | -|PO9| 0000 | 0 1 | DWd | nnnn | 32-bit EXT300-363 | -|PO9| !ZERO | 0 1 | DWd | nnnn | SVP64Single:EXT000-063 | -|PO9| SVRM | 0 0 | DWd | nnnn | SVP64:EXT000-063 | +The following eight new `RESERVED` areas are defined within +Primary Opcode 9 (EXT009) + +|0-5| 6-29 |30 31|32-37 | 38-63 | Description | +|---|--------|-----|--------|-------|------------------| +|PO9| xxxx | x x | 010001 | xxxx | RESERVED(1) | +|PO9| xxxx | x x | 000001 | xxxx | RESERVED(2) | +|PO9| !ZERO | 1 1 | !PO9 | nnnn | SVP64Single:EXT200-263 | +|PO9| 0000 | 1 1 | !PO9 | nnnn | Scalar EXT200-263 | +|PO9| SVRM | 1 0 | !PO9 | nnnn | SVP64:EXT200-263 | +|PO9| 0000 | 0 1 | DWd | nnnn | 32-bit EXT300-363 | +|PO9| !ZERO | 0 1 | DWd | nnnn | SVP64Single:EXT000-063 | +|PO9| SVRM | 0 0 | DWd | nnnn | SVP64:EXT000-063 | Key: * **x** - a `RESERVED` encoding. Illegal Instruction Trap must be raised -* **n** - a specification-defined value (currently `RESERVED`) -* **!ZERO** - a non-zero specification-defined value +* **n** - a future specification-defined value (currently `RESERVED`) +* **!PO9** - any 6-bit binary value except Primary Opcode 9 (0b010001) +* **!ZERO** - a non-zero futre specification-defined value (currently `RESERVED`) * **DWd** - a "Defined Word-instruction" - Book I Section 1.6 (Public v3.1 p11) * **SVRM** - a `RESERVED` encoding -* **SVP64Single**: a `RESERVED` encoding -* **SVP64**: a `RESERVED` Loop-Prefix encoding +* **SVP64Single**: a future `RESERVED` encoding +* **SVP64**: a future `RESERVED` Loop-Prefix encoding * **EXT200-263**: a `RESERVED` encoding for future Scalar instructions * **EXT300-363**: a `RESERVED` encoding for future Scalar instructions -- 2.30.2