From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Mon, 5 Jul 2021 13:30:50 +0000 (+0100)
Subject: add function to turn permute into an order list
X-Git-Tag: xlen-bcd~351
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=1db61d660db382b671237215fc65c65b5371c810;p=openpower-isa.git

add function to turn permute into an order list
---

diff --git a/src/openpower/sv/svp64.py b/src/openpower/sv/svp64.py
index 32880775..e9ba29b1 100644
--- a/src/openpower/sv/svp64.py
+++ b/src/openpower/sv/svp64.py
@@ -68,6 +68,15 @@ class SVP64REMAP(Record):
                                       ("ydimsz"  , 6),
                                       ("xdimsz"  , 6)], name=name)
 
+    def order(self, permute):
+        options = {0b000: [0,1,2],
+                   0b001: [0,2,1],
+                   0b010: [1,0,2],
+                   0b011: [1,2,0],
+                   0b100: [2,0,1],
+                   0b101: [2,1,0]}
+        return options[permute]
+
     def ports(self):
         return [self.mode, self.skip, self.offset, self.invxyz, self.permute,
                 self.zdimsz, self.ydimsz, self.xdimsz]