From: Luke Kenneth Casson Leighton <lkcl@lkcl.net>
Date: Mon, 25 Apr 2022 14:42:08 +0000 (+0100)
Subject: set nextpnr-xilinx seed 1 for deterministic behaviour
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=fb3465a905e850fd84d944372e9f70c64335f73e;p=nmigen.git

set nextpnr-xilinx seed 1 for deterministic behaviour
may be over-ridden with an argument override adding an additional
--seed {value}
---

diff --git a/nmigen/vendor/xilinx.py b/nmigen/vendor/xilinx.py
index 98b10bd..c72d728 100644
--- a/nmigen/vendor/xilinx.py
+++ b/nmigen/vendor/xilinx.py
@@ -493,6 +493,7 @@ class XilinxPlatform(TemplatedPlatform):
             --json {{name}}.json
             --write {{name}}_routed.json
             --fasm {{name}}.fasm
+            --seed 1
         """,
         r"""
         {{invoke_tool("fasm2frames")}}