From: lkcl <lkcl@web>
Date: Thu, 23 Jun 2022 14:25:39 +0000 (+0100)
Subject: (no commit message)
X-Git-Tag: opf_rfc_ls005_v1~1566
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=34f99600e33ace5797fb157a9bbcd36f0e4fab61;p=libreriscv.git

---

diff --git a/openpower/sv/mv.swizzle.mdwn b/openpower/sv/mv.swizzle.mdwn
index 7fe991734..d2f83f0b1 100644
--- a/openpower/sv/mv.swizzle.mdwn
+++ b/openpower/sv/mv.swizzle.mdwn
@@ -259,17 +259,27 @@ Illustrating a
 
 For a separate source/dest SUBVL (again, no elwidth overrides):
 
-    # yield an outer-SUBVL, inner VL loop with SRC SUBVL
-    def index_src():
-        for j in range(SUBVL):
+    # yield an outer-SUBVL or inner VL loop with SUBVL
+    def index_dest(outer):
+        if outer:
+            for j in range(dst_subvl):
+                for i in range(VL):
+                    ....
+        else:
             for i in range(VL):
-                yield i+VL*j
+                for j in range(dst_subvl):
+                    ....
 
-    # yield an outer-SUBVL, inner VL loop with DEST SUBVL
-    def index_dest():
-        for j in range(dst_subvl):
+    # yield an outer-SUBVL or inner VL loop with SUBVL
+    def index_src(outer):
+        if outer:
+            for j in range(SUBVL):
+                for i in range(VL):
+                    ....
+        else:
             for i in range(VL):
-                yield i+VL*j
+                for j in range(SUBVL):
+                    ....
 
 "yield" from python is used here for simplicity and clarity.
 The two Finite State Machines for the generation of the source
@@ -302,7 +312,7 @@ if VERTICAL_FIRST:
     if PACK_en and UNPACK_en:
         num_runs = 1 # both are outer loops
     for substep in num_runs:
-        (src_idx, offs) = yield from index_src()
-        dst_idx = yield from index_dst()
+        (src_idx, offs) = yield from index_src(UNPACK_en)
+        dst_idx = yield from index_dst(PACK_en)
         move_operation(RT+dst_idx, RA+src_idx+offs)
 ```