From: Jacob Lifshay <programmerjake@gmail.com>
Date: Fri, 21 Apr 2023 00:39:34 +0000 (-0700)
Subject: fill in instruction forms
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=79c462ecb4835fdd1602ea510608fe9205f75a8c;p=libreriscv.git

fill in instruction forms
---

diff --git a/openpower/sv/rfc/ls013.mdwn b/openpower/sv/rfc/ls013.mdwn
index cfa364a32..6fe1f4042 100644
--- a/openpower/sv/rfc/ls013.mdwn
+++ b/openpower/sv/rfc/ls013.mdwn
@@ -220,7 +220,7 @@ semantics therefore Saturated variants of these instructions need not be propose
 | 110   | `minsw RT,RA,RB` | `RT =  (int32_t)RA < (int32_t)RB  ? RA : RB` |
 | 111   | `maxsw RT,RA,RB` | `RT =  (int32_t)RA > (int32_t)RB  ? RA : RB` |
 
-## Integer Min/Max MM-Form
+## Minimum/Maximum MM-Form
 
 * minmax RT, RA, RB, MMM
 * minmax. RT, RA, RB, MMM
@@ -263,28 +263,42 @@ Special Registers altered:
     CR0     (if Rc=1)
 ```
 
+Assembly Aliases: see
+[`MMM` -- Integer Min/Max Mode](#mmm-integer-min-max-mode)
+
 ----------
 
 \newpage{}
 
 # Instruction Formats
 
-Add the following entries to Book I 1.6.1.15 X-FORM:
+Add the following entries to Book I 1.6.1 Word Instruction Formats:
+
+## MM-FORM
 
 ```
-    |0    |6    |11   |16   |21          |26  |31  |
-    | PO  | FRT | FRA | FRB | FMM[0:3] / | XO | Rc |
+    |0    |6    |11   |16   |21   |24 |25  |31  |
+    | PO  | FRT | FRA | FRB | FMM     | XO | Rc |
+    | PO  | RT  | RA  | RB  | MMM | / | XO | Rc |
 ```
 
-Add a new field to Book I 1.6.2 Word Instruction Fields:
+Add the following new fields to Book I 1.6.2 Word Instruction Fields:
 
 ```
     FMM (21:24)
         Field used to specify minimum/maximum mode for fminmax[s].
 
-        Formats: A
+        Formats: MM
+
+    MMM (21:23)
+        Field used to specify minimum/maximum mode for integer minmax.
+
+        Formats: MM
 ```
 
+Add `MM` to the `Formats:` list for all of `FRT`, `FRA`, `FRB`, `XO (25:30)`,
+`Rc`, `RT`, `RA` and `RB`.
+
 ----------
 
 \newpage{}
@@ -296,11 +310,11 @@ Add a new field to Book I 1.6.2 Word Instruction Fields:
     Appendix G Power ISA sorted by Compliancy Subset
     Appendix H Power ISA sorted by mnemonic
 
-| Form | Book | Page | Version | mnemonic | Description |
+| Form | Book | Page | Version | Mnemonic | Description |
 |------|------|------|---------|----------|-------------|
-| A    | I    | #    | 3.2B    | fminmax  | Floating Minimum/Maximum |
-| A    | I    | #    | 3.2B    | fminmaxs | Floating Minimum/Maximum Single |
-| ???  | I    | #    | 3.2B    | minmax | Minimum/max Signed/Unsigned |
+| MM   | I    | #    | 3.2B    | fminmax  | Floating Minimum/Maximum |
+| MM   | I    | #    | 3.2B    | fminmaxs | Floating Minimum/Maximum Single |
+| MM   | I    | #    | 3.2B    | minmax   | Minimum/Maximum |
 
 ## fmax instruction count