diff --git a/tools/hexdump.js b/tools/hexdump.js
deleted file mode 100644
index e704541..0000000
--- a/tools/hexdump.js
+++ /dev/null
@@ -1,32 +0,0 @@
-const fs = require('fs');
-
-let prg = fs.readFileSync("test_apple1.prg");
-
-prg = prg.slice(2); // skip header
-
-let s = appledump(prg, 0x4000);
-
-console.log(s);
-
-function appledump(bytes, start) {
-   let rows=16;
-   let s="\r\n";
-   for(let r=0;r<bytes.length;r+=rows) {
-      s+= hex(r+start, 4) + ": ";
-      for(let c=0;c<rows;c++) {
-         let index = r+c;
-         if(index < bytes.length) {
-            const byte = bytes[r+c];
-            s+= hex(byte)+" ";   
-         }
-      }
-      s+="\n";
-   }
-   return s;
-}
-
-function hex(value, size) {
-   if(size === undefined) size = 2;
-   let s = "0000" + value.toString(16);
-   return s.substr(s.length - size);
-}
diff --git a/tools/prg2woz.js b/tools/prg2woz.js
new file mode 100644
index 0000000..bbb92d3
--- /dev/null
+++ b/tools/prg2woz.js
@@ -0,0 +1,42 @@
+const fs = require('fs');
+const parseOptions = require("./parseOptions");
+const { hex } = require('./wavconv/hex');
+
+function appledump(bytes, start) {
+   let rows=16;
+   let s="\r\n";
+   for(let r=0;r<bytes.length;r+=rows) {
+      s+= hex(r+start, 4) + ": ";
+      for(let c=0;c<rows;c++) {
+         let index = r+c;
+         if(index < bytes.length) {
+            const byte = bytes[r+c];
+            s+= hex(byte)+" ";   
+         }
+      }
+      s+="\n";
+   }
+   return s;
+}
+
+const options = parseOptions([
+   { name: 'input', alias: 'i', type: String },
+   { name: 'output', alias: 'o', type: String }
+]);
+
+
+if(options.input === undefined || options.output === undefined) {
+   console.log("usage: prg2woz -i inputfile.prg -o outputfile.woz");
+   process.exit(-1);
+}
+
+let prgname = options.input;
+let wozname = options.output;
+
+let prg = fs.readFileSync(prgname);
+let baseaddress = prg[0] + prg[1]*256;
+let bin = prg.slice(2); // skip header
+let woz = appledump(bin, baseaddress);
+fs.writeFileSync(wozname, woz);
+
+console.log(`file "${wozname}" generated`);