apple2 cassette export w/ c2t

index.html

@@ -63,6 +63,7 @@ if (window.location.host.endsWith('8bitworkshop.com')) {
         <ul class="dropdown-menu">
           <li><a class="dropdown-item" href="#" id="item_record_video">Record Video...</a></li>
           <li><a class="dropdown-item" href="#" id="item_share_file">Share Playable Link...</a></li>
+          <li><a class="dropdown-item" href="#" id="item_export_cassette">Make Cassette Audio...</a></li>
         </ul>
       </li>
       <li class="dropdown dropdown-submenu">

src/ui.ts

@@ -353,6 +353,39 @@ function _shareEmbedLink(e) {
   return true;
 }
 
+function _downloadCassetteFile(e) {
+  if (current_output == null) { // TODO
+    alert("Please fix errors before exporting.");
+    return true;
+  }
+  var addr = compparams && compparams.code_start;
+  if (addr === undefined) {
+    alert("Cassette export is not supported on this platform.");
+    return true;
+  }
+  loadScript('lib/c2t.js', () => {
+    var stdout = '';
+    var print_fn = function(s) { stdout += s + "\n"; }
+    var c2t = window['c2t']({
+      noInitialRun:true,
+      print:print_fn,
+      printErr:print_fn
+    });
+    var FS = c2t['FS'];
+    var rompath = getCurrentMainFilename() + ".bin";
+    var audpath = getCurrentMainFilename() + ".wav";
+    FS.writeFile(rompath, current_output, {encoding:'binary'});
+    var args = ["-2bc", rompath+','+addr.toString(16), audpath];
+    c2t.callMain(args);
+    var audout = FS.readFile(audpath, {'encoding':'binary'});
+    if (audout) {
+      var blob = new Blob([audout], {type: "audio/wav"});
+      saveAs(blob, audpath);
+      alert(stdout);
+    }
+  });
+}
+
 function fixFilename(fn : string) : string {
   if (platform_id.startsWith('vcs') && fn.indexOf('.') <= 0)
     fn += ".a"; // legacy stuff
@@ -892,6 +925,10 @@ function setupDebugControls(){
   $("#item_download_zip").click(_downloadProjectZipFile);
   $("#item_download_allzip").click(_downloadAllFilesZipFile);
   $("#item_record_video").click(_recordVideo);
+  if (platform_id == 'apple2')
+    $("#item_export_cassette").click(_downloadCassetteFile);
+  else
+    $("#item_export_cassette").hide();
   if (platform.setFrameRate && platform.getFrameRate) {
     $("#dbg_slower").click(_slowerFrameRate);
     $("#dbg_faster").click(_fasterFrameRate);

src/worker/workermain.js

@@ -128,6 +128,7 @@ var PLATFORM_PARAMS = {
     cfgfile: 'apple2-hgr.cfg',
     libargs: ['apple2.lib'],
     __CODE_RUN__: 16384,
+    code_start: 0x803,
   },
   'apple2-e': {
     define: '__APPLE2__',
@@ -1514,8 +1515,9 @@ function executeBuildSteps() {
       return {errors:[{line:0, msg:e+""}]}; // TODO: catch errors already generated?
     }
     if (step.result) {
+      step.result.params = step.params;
       // errors? return them
-      if (step.result.errors) {
+      if (step.result.errors && step.result.errors.length) {
         applyDefaultErrorPath(step.result.errors, step.path);
         return step.result;
       }