From f86bda7b50368c8c4b80bcc1f3bc35a5f87437bb Mon Sep 17 00:00:00 2001
From: bLueriVerLHR <lhrblueriver@outlook.com>
Date: Thu, 11 May 2023 12:33:10 +0800
Subject: [PATCH] [Init] initialize repo

---
 .gitignore     |  1 +
 CMakeLists.txt | 26 ++++++++++++++++++++++++++
 README.md      |  1 +
 cxxsrc/main.cc |  3 +++
 cxxsrc/spec.cc |  0
 cxxsrc/spec.hh |  0
 vsrc/top.v     |  6 ++++++
 7 files changed, 37 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 CMakeLists.txt
 create mode 100644 cxxsrc/main.cc
 create mode 100644 cxxsrc/spec.cc
 create mode 100644 cxxsrc/spec.hh
 create mode 100644 vsrc/top.v

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..d163863
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+build/
\ No newline at end of file
diff --git a/CMakeLists.txt b/CMakeLists.txt
new file mode 100644
index 0000000..e3ace04
--- /dev/null
+++ b/CMakeLists.txt
@@ -0,0 +1,26 @@
+cmake_minimum_required(VERSION 3.12)
+cmake_policy(SET CMP0074 NEW)
+project(lacpu)
+
+# set environment variables for verilator
+# remove if already install one
+set(verilator_DIR "/home/blur/gits/verilator")
+set(ENV{VERILATOR_ROOT} ${verilator_DIR})
+
+find_package(verilator)
+
+if (NOT verilator_FOUND)
+  message(FATAL_ERROR "Verilator was not found.")
+endif()
+
+# set default top module as top file
+set(VSRC ${CMAKE_SOURCE_DIR}/vsrc/top.v)
+
+# get all cxx source files from cxxsrc
+file(GLOB_RECURSE CXXSRC ${CMAKE_SOURCE_DIR}/cxxsrc/*.cc)
+
+add_executable(${CMAKE_PROJECT_NAME} ${CXXSRC})
+
+verilate(${CMAKE_PROJECT_NAME}
+  INCLUDE_DIRS ${CMAKE_SOURCE_DIR}/vsrc ${verilator_DIR}/include
+  SOURCES ${VSRC})
\ No newline at end of file
diff --git a/README.md b/README.md
index fa062c4..76ff027 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,3 @@
 # neulacpu
+
 loongarch cpu development repo
diff --git a/cxxsrc/main.cc b/cxxsrc/main.cc
new file mode 100644
index 0000000..e9cdae1
--- /dev/null
+++ b/cxxsrc/main.cc
@@ -0,0 +1,3 @@
+int main() {
+    return 0;
+}
\ No newline at end of file
diff --git a/cxxsrc/spec.cc b/cxxsrc/spec.cc
new file mode 100644
index 0000000..e69de29
diff --git a/cxxsrc/spec.hh b/cxxsrc/spec.hh
new file mode 100644
index 0000000..e69de29
diff --git a/vsrc/top.v b/vsrc/top.v
new file mode 100644
index 0000000..c74fa1f
--- /dev/null
+++ b/vsrc/top.v
@@ -0,0 +1,6 @@
+module top (
+    input wire i_x,
+    output wire o_y
+);
+    assign o_y = i_x;
+endmodule
\ No newline at end of file