From a3815caa0aae9f14b535126ccbaaec03230086fc Mon Sep 17 00:00:00 2001
From: Nikolay Puzanov <np@embddr.com>
Date: Tue, 13 Jun 2023 16:35:18 +0300
Subject: [PATCH] Add XSIM

---
 README.md                |  2 ++
 test-xsim/.dir-locals.el |  1 +
 test-xsim/.gitignore     |  4 ++++
 test-xsim/__build.sh     | 13 +++++++++++++
 test-xsim/__run.sh       |  4 ++++
 test-xsim/top.sv         |  7 +++++++
 6 files changed, 31 insertions(+)
 create mode 100644 test-xsim/.dir-locals.el
 create mode 100644 test-xsim/.gitignore
 create mode 100755 test-xsim/__build.sh
 create mode 100755 test-xsim/__run.sh
 create mode 100644 test-xsim/top.sv

diff --git a/README.md b/README.md
index ee61138..6b6ce44 100644
--- a/README.md
+++ b/README.md
@@ -39,6 +39,7 @@
 Результаты для 200 знаков на том же процессоре:
 ```
     test-iverilog: 3257116
+    test-xsim: 938296
     test-modelsim: 359562
     test-verilator: 20816
 ```
@@ -53,6 +54,7 @@
     test-xcelium: 1
     test-vcs: 1.37
     test-modelsim: 5.95
+    test-xsim: 15.5
     test-iverilog: 58
 ```
 
diff --git a/test-xsim/.dir-locals.el b/test-xsim/.dir-locals.el
new file mode 100644
index 0000000..5621d3a
--- /dev/null
+++ b/test-xsim/.dir-locals.el
@@ -0,0 +1 @@
+((verilog-mode . ((flycheck-verilator-include-path . ("../source")))))
diff --git a/test-xsim/.gitignore b/test-xsim/.gitignore
new file mode 100644
index 0000000..20d30dc
--- /dev/null
+++ b/test-xsim/.gitignore
@@ -0,0 +1,4 @@
+webtalk*
+xsim.*
+xelab.*
+xvlog.*
diff --git a/test-xsim/__build.sh b/test-xsim/__build.sh
new file mode 100755
index 0000000..493a018
--- /dev/null
+++ b/test-xsim/__build.sh
@@ -0,0 +1,13 @@
+#!/usr/bin/env bash
+set -e
+
+FFILE=../source/sources.f
+SOURCES=$(cat $FFILE | sed -ze 's/\n/ /g')
+
+rm -rf xsim.dir
+rm -rf webtalk*
+rm -rf xvlog.* xelab.* xsim.*
+rm -rf top.wdb
+
+xvlog -work work --sv top.sv $SOURCES
+xelab --O3 -L work top
diff --git a/test-xsim/__run.sh b/test-xsim/__run.sh
new file mode 100755
index 0000000..b5b82ed
--- /dev/null
+++ b/test-xsim/__run.sh
@@ -0,0 +1,4 @@
+#!/usr/bin/env bash
+
+#vsim -c -batch -voptargs=+acc=npr -do "run -all" -quiet -lib testbench top
+xsim top --runall
diff --git a/test-xsim/top.sv b/test-xsim/top.sv
new file mode 100644
index 0000000..9dc38d8
--- /dev/null
+++ b/test-xsim/top.sv
@@ -0,0 +1,7 @@
+`timescale 1ps/1ps
+
+module top;
+    logic clock = 1'b0;
+    initial forever #(10ns/2) clock = ~clock;
+    testbench testbench (clock);
+endmodule