From: lkcl <lkcl@web>
Date: Sat, 15 Apr 2023 13:43:39 +0000 (+0100)
Subject: (no commit message)
X-Git-Tag: opf_rfc_ls009_v1~75
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=d115188e8ab065f990e3101a114e86427990dc08;p=libreriscv.git

---

diff --git a/openpower/sv/rfc/ls009.mdwn b/openpower/sv/rfc/ls009.mdwn
index 5370bf1e5..ee0a94b59 100644
--- a/openpower/sv/rfc/ls009.mdwn
+++ b/openpower/sv/rfc/ls009.mdwn
@@ -2259,5 +2259,29 @@ def iterate_dct_outer_butterfly_indices(SVSHAPE):
 
 ```
 
+## REMAP selector
+
+Selecting which REMAP Schedule to use is shown by the pseudocode below.
+Each SVSHAPE 0-3 goes through this selection process.
+
+```
+        if self.mode == 0b00:
+            iterate_fn = iterate_indices
+        elif self.mode == 0b10:
+            iterate_fn = iterate_preduce_indices
+        elif self.mode in [0b01, 0b11]:
+            # further sub-selection
+            if self.ydimsz == 1:
+                iterate_fn = iterate_butterfly_indices
+            elif self.ydimsz == 2:
+                iterate_fn = iterate_dct_inner_butterfly_indices
+            elif self.ydimsz == 3:
+                iterate_fn = iterate_dct_outer_butterfly_indices
+            elif self.ydimsz in [5, 13]:
+                iterate_fn = iterate_dct_inner_costable_indices
+            elif self.ydimsz in [6, 14, 15]:
+                iterate_fn = iterate_dct_inner_halfswap_loadstore
+```
+
 
 [[!tag opf_rfc]]