diff --git a/svelte_blinkenweb/src/components/Controls.svelte b/svelte_blinkenweb/src/components/Controls.svelte
index 8020985..39b9578 100644
--- a/svelte_blinkenweb/src/components/Controls.svelte
+++ b/svelte_blinkenweb/src/components/Controls.svelte
@@ -15,9 +15,66 @@
 
   //render conditionals
   let showControls = false;
-  $: showControls = !mobile || !showEditor;
+  let canstart = false;
+  let canstep = false;
+  let cancompile = false;
+  $: showControls = (
+    !mobile || !showEditor
+  )
+  $: canstart = (
+    $blinkStore.state == blink.states.PROGRAM_LOADED ||
+    $blinkStore.state == blink.states.PROGRAM_STOPPED
+  )
+  $: canstep = (
+    $blinkStore.state == blink.states.PROGRAM_RUNNING
+  )
+  $: cancompile = (
+    $blinkStore.state != blink.states.NOT_READY &&
+    $blinkStore.state != blink.states.ASSEMBLING &&
+    $blinkStore.state != blink.states.LINKING
+  )
+
+  //temporary control state logic
+	let compiler_options = [
+		{ id: 1, text: `Fasm`, uri: 'fasm' },
+		{ id: 2, text: `Gnu AS`, uri: 'gnu' },
+	];
+  let demo_options = [
+		{ id: 1, text: `Hello World`, uri: 'hello_world' },
+		{ id: 2, text: `Functions`, uri:'functions' }
+  ]
+
+	let selected_compiler;
+  let selected_demo;
+
+  onMount(() => {
+    const params = new URLSearchParams(window.location.search);
+    let compiler_opt = compiler_options.find(c => c.uri == params.get('compiler'));
+    if(compiler_opt) selected_compiler = compiler_opt;
+    let demo_opt = demo_options.find(c => c.uri == params.get('demo'));
+    if(demo_opt) selected_demo = demo_opt;
+  });
+
+  function handle_compiler_change(){
+    window.location.search = `?compiler=${selected_compiler.uri}&demo=${selected_demo.uri}`;
+  }
+
+  function handle_demo_change(e){
+    window.location.search = `?compiler=${selected_compiler.uri}&demo=${selected_demo.uri}`;
+  }
+
+
+  //control handlers
 
-  $: console.log(mobile)
+  async function handle_compile(){
+    // let filedata = await fetchBinaryFile(demo1_url)
+    // blink.loadElf(filedata);
+    blink.loadASM($blinkStore.asm);
+  }
+
+  function handle_back(){
+    blink.setready()
+  }
 
 </script>
 
@@ -34,24 +91,21 @@
 
 <div class="controls" class:controls-inverted={!mobile} >
   <section class="controls__row controls__row-top">
-      <button on:click={()=>showEditor = !showEditor}>
-      {showEditor ? "E" : "_"}
-      {mobile ? "M" : "_"}
-      </button>
-
     {#if showEditor || !mobile}
       <div class="compilebt">
-        <select >
-            <option value={1}>
-            asd
+        <select bind:value={selected_compiler} on:change={handle_compiler_change}>
+          {#each compiler_options as question}
+            <option value={question}>
+              {question.text}
             </option>
+          {/each}
         </select>
-        <button disabled={true} >
+        <button disabled={!cancompile} on:click={handle_compile}>
           <svg aria-hidden="true" focusable="false" version="1.0" xmlns="http://www.w3.org/2000/svg" width="606.7" height="664" viewBox="0 0 455 498"><path d="M147 103c-1 1-2 2-2 5 0 4 0 4-5 5-10 1-8 12 3 12 2 0 2 0 2 4l2 5c4 4 9 1 9-5 0-4 0-4 2-4 7 0 12-5 9-9-2-2-3-3-6-3-4 0-4 0-5-5 0-4-3-7-5-7l-4 2z"/><path d="M241 114c-19 3-37 13-50 29a386 386 0 0 0-65 146 147 147 0 0 0 153-3c8-5 9-7 9-8a1290 1290 0 0 0-18-70c-2-11-2-11 0-12 4-4 17-8 23-9 7 0 12 1 20 6 12 7 16 9 22 9 4 0 5 0 7-3 4-4 2-10-4-24-17-33-41-55-69-60-7-2-22-2-28-1z"/><path d="m75 149-2 8c-2 14-11 23-26 25-6 1-8 3-8 6 0 4 3 6 9 6 9 1 18 8 23 16l2 9c1 5 1 7 3 8 4 3 9 0 9-5 0-7 3-13 9-19s12-9 19-9c3 0 7-3 7-6s-2-5-9-6c-8-1-15-5-20-11-3-4-6-12-6-17l-2-4c-1-2-6-3-8-1z"/><path d="m312 230-1 6c0 3-1 4-5 4l-6 2c-3 5 0 9 6 10 4 1 5 1 5 5 0 5 2 6 5 6 4 0 6-2 6-7 0-4 0-4 3-4 5 0 7-1 8-4 2-4-1-7-7-8-4 0-4 0-4-4l-2-5c-1-2-6-3-8-1z"/><path d="M297 286a139 139 0 0 1-69 33 170 170 0 0 1-108-20l-9-5-32 9c-14 5-22 10-29 16-11 10-13 19-9 30 6 11 18 15 53 17 19 1 32 2 76 8l26 3 4-4c3-3 5-4 10-5l8-2 6-4c3-3 4-4 5-9 2-13 8-20 18-20s16 6 18 19c2 9 7 14 17 16l8 2c3 1 4 1 12-2 16-6 29-14 43-26 18-14 21-24 14-35-6-9-23-16-49-20-11-2-12-2-13-1z"/><path d="M244 346c-2 2-3 3-3 7-2 14-12 24-25 26-6 0-9 2-9 6s2 5 9 6c13 2 23 12 25 25 0 6 2 9 6 9 3 0 6-3 6-7 0-13 14-27 27-27 4 0 7-2 7-6 0-3-3-6-7-6s-13-3-17-7c-5-4-9-12-10-18 0-4-1-6-3-8s-3-2-6 0z"/></svg>
           compile</button>
       </div>
     {:else}
-      <button>
+      <button on:click={handle_back}>
         <svg width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
           <path d="M15 19L8 12L15 5" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/>
         </svg>
@@ -65,21 +119,31 @@
   <section class="controls__row controls__row-bottom">
 
     <div class="group">
-      <button > 
+      <button on:click={()=>blink.starti()}
+        disabled={!canstart} > 
+        <!-- <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" aria-hidden="true" class="h-4 w-4 hover:bg-secondary-8 stroke-2 stroke-accent-1 ml-1.5"><path stroke-linecap="round" stroke-linejoin="round" d="M5.25 5.653c0-.856.917-1.398 1.667-.986l11.54 6.348a1.125 1.125 0 010 1.971l-11.54 6.347a1.125 1.125 0 01-1.667-.985V5.653z"></path></svg> -->
         starti 
       </button>
-      <button > 
+      <button on:click={()=>blink.run()}
+        disabled={!canstart} > 
         <!-- <svg xmlns="http://www.w3.org/2000/svg" fill="none" viewBox="0 0 24 24" stroke-width="1.5" stroke="currentColor" aria-hidden="true" class="h-4 w-4 hover:bg-secondary-8 stroke-2 stroke-accent-1 ml-1.5"><path stroke-linecap="round" stroke-linejoin="round" d="M5.25 5.653c0-.856.917-1.398 1.667-.986l11.54 6.348a1.125 1.125 0 010 1.971l-11.54 6.347a1.125 1.125 0 01-1.667-.985V5.653z"></path></svg> -->
         run 
       </button>
     </div>
 
+    <button class="debugbt" on:click={()=>blink.stepi()}
+      disabled={!canstep}
+    > stepi </button>
+    <button class="debugbt" on:click={()=>blink.continue()}
+      disabled={!canstep}
+    > continue </button>
+
   </section>
   {/if}
 </div>
 
 
-{#if showControls && $state == blink.states.PROGRAM_STOPPED}
+{#if mobile && !showEditor && $state == blink.states.PROGRAM_STOPPED}
   <p class="stopinfo">exit reason</p>
 {/if}
 
@@ -133,7 +197,7 @@
   .controls__row{
     display: flex;
     align-items: center;
-    justify-content: space-between;
+    justify-content: left;
     padding: .5rem;
     padding-left: 1rem;
     padding-right: 1rem;
@@ -147,6 +211,9 @@
 
 
 
+  /* -------------------- */
+  /*      Buttons&c       */
+  /* -------------------- */
   button, select{
     border: 1px solid var(--color-gray-t);
     color: white;
@@ -164,12 +231,14 @@
 
   button svg{
     stroke: white;
+    fill: white;
     height: 18px;
     width: 18px;
     margin-right: 3px;
   }
   button:disabled svg{
     fill: gray;
+    stroke: gray;
   }
 
   .group{
@@ -212,6 +281,7 @@
   .compilebt button svg{
     width: 25px;
     height: 25px;
+    stroke: white;
   }
   .compilebt select{
     border: 1px solid transparent;
@@ -220,11 +290,6 @@
     border-bottom-right-radius: 0;
   }
 
-  section.editor select{
-    background-color:rgba(255,255,255,.1);
-  }
-
-
 
  .stopinfo{
     /*TODO: remove hardcoded colors, find proper design */