change file path names and readme

README.md

@@ -5,5 +5,6 @@ Generate csv files from a clocked vcd trace
 Current limitations:
 - Captures all signals in a fixed scope related to `gemmx`
 - Assumes clock is `TOP.clk_i`
-- requires file to be called `src/sim.vcd`
-- outputs to a fixed `result.csv`
+- requires file to be called `sim.vcd`
+- outputs to a fixed `sim.csv`
+- Does not support vector values, these are all set to 0, only scalar values are supported for now.

src/main.rs

@@ -65,7 +65,7 @@ fn parse_vcd_to_data(vcd_file: &str) -> Result<(), Box<dyn std::error::Error>> {
     }
 
     // Prepare CSV writer
-    let mut wtr = csv::Writer::from_path("result.csv")?;
+    let mut wtr = csv::Writer::from_path("sim.csv")?;
 
     // Write headers (variable names)
     let mut headers: Vec<String> = Vec::new();
@@ -94,7 +94,7 @@ fn parse_vcd_to_data(vcd_file: &str) -> Result<(), Box<dyn std::error::Error>> {
 }
 
 fn main() {
-    if let Err(e) = parse_vcd_to_data("src/sim.vcd") {
+    if let Err(e) = parse_vcd_to_data("sim.vcd") {
         eprintln!("Error parsing VCD file: {}", e);
     }
 }