[build] add build script

.gitmodules

@@ -1,3 +1,3 @@
-[submodule "verilator"]
-	path = verilator
+[submodule "dependencies/verilated-rs"]
+	path = dependencies/verilated-rs
 	url = [email protected]:Anillc/verilated-rs.git

Cargo.toml

@@ -6,10 +6,10 @@ edition = "2021"
 build = "build.rs"
 
 [dependencies]
-verilated = { path = "./verilator/verilated" }
-verilated-module = { path = "./verilator/verilated-module" }
+verilated = { path = "./dependencies/verilated-rs/verilated" }
+verilated-module = { path = "./dependencies/verilated-rs/verilated-module" }
 clap = { version = "4.3.11", features = ["derive"] }
 anyhow = "1.0.80"
 
 [build-dependencies]
-verilator = { path = "./verilator/verilator", features = ["gen", "module"] }
+verilator = { path = "./dependencies/verilated-rs/verilator", features = ["gen", "module"] }

build.rs

@@ -25,20 +25,13 @@ fn main() {
 
   // Generate CPP from Verilog
   let mut verilator = Verilator::default();
-
-  let dir = Path::new("myCPU");
-  let files: Vec<_> = fs::read_dir(dir)
-    .expect("Directory not found")
-    .filter_map(|entry| entry.ok().and_then(|e| e.path().to_str().map(|s| String::from(s))))
-    .collect();
-
-  println!("Files: {:?}", files);
-
-  verilator.with_coverage(true).with_trace(true);
-
-  for file in &files {
-    verilator.file_with_standard(file, Standard::Verilog2005);
-  }
-
-  verilator.file(out_dir.join("mycpu_top.cpp")).build("mycpu_top");
+  verilator
+    .with_coverage(true)
+    .with_trace(true)
+    .no_warn("fatal")
+    .no_warn("WIDTHTRUNC")
+    .file_with_standard("dependencies/rtl/PuaCpu.v", Standard::SystemVerilog2012)
+    .file_with_standard("dependencies/rtl/top.v", Standard::SystemVerilog2012)
+    .file(out_dir.join("top.cpp"))
+    .build("top");
 }