From: Jacob Lifshay <programmerjake@gmail.com>
Date: Tue, 4 Apr 2023 01:15:25 +0000 (-0700)
Subject: add new fields/formats for ls006
X-Git-Tag: opf_rfc_ls012_v1~142
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4b8a4d6167c510b7edad7281df9ed74c49b6eedd;p=libreriscv.git

add new fields/formats for ls006
---

diff --git a/openpower/sv/rfc/ls006.mdwn b/openpower/sv/rfc/ls006.mdwn
index 9b811db75..608fe69ff 100644
--- a/openpower/sv/rfc/ls006.mdwn
+++ b/openpower/sv/rfc/ls006.mdwn
@@ -842,6 +842,57 @@ Special Registers altered:
 
 ----------
 
+# Instruction Formats
+
+Add the following entries to Book I 1.6.1.19 XO-FORM:
+
+| 0-5 | 6-10 | 11-12 | 13-15 | 16-20 | 21 | 22-30 | 31 |
+|-----|------|-------|-------|-------|----|-------|----|
+| PO  | RT   | IT    | CVM   | FRB   | OE | XO    | Rc |
+
+Add the following entries to Book I 1.6.1.15 X-FORM:
+
+| 0-5 | 6-10 | 11-12 | 13-15 | 16-20 | 21-30 | 31 |
+|-----|------|-------|-------|-------|-------|----|
+| PO  | FRT  | IT    | 0     | RB    | XO    | Rc |
+
+| 0-5 | 6-10 | 11-15 | 16-20 | 21-30 | 31 |
+|-----|------|-------|-------|-------|----|
+| PO  | FRT  | 0     | RB    | XO    | Rc |
+
+| 0-5 | 6-10 | 11-15 | 16-20 | 21-30 | 31 |
+|-----|------|-------|-------|-------|----|
+| PO  | RT   | 0     | FRB   | XO    | Rc |
+
+## Instruction Fields
+
+Add XO to FRB's Formats list in Book I 1.6.2 Word Instruction Fields.
+
+Add XO to FRT's Formats list in Book I 1.6.2 Word Instruction Fields.
+
+Add new fields:
+
+```
+    IT (11:12)
+        Field used to specify integer type for FPR <-> GPR conversions.
+
+        Formats: X, XO
+```
+
+```
+    CVM (13:15)
+        Field used to specify conversion mode for
+        integer -> floating-point conversion.
+
+        Formats: XO
+```
+
+----------
+
+\newpage{}
+
+----------
+
 # Appendices
 
     Appendix E Power ISA sorted by opcode