diff --git a/doc/notes.txt b/doc/notes.txt
index 75f44270..cde0fa00 100644
--- a/doc/notes.txt
+++ b/doc/notes.txt
@@ -58,6 +58,8 @@ TODO:
 - bring back the profiler!
 - vcs disasm is broken
 - links to external tools in ide
+- error msg when #link doesn't work
+- figure out folders for projects for real
 
 On the website the additional grey spacing next to the program line numbers is not dynamically resized when the web browser window size is changed.  Intentional?
 
diff --git a/index.html b/index.html
index 1de33d4a..b8c78c81 100644
--- a/index.html
+++ b/index.html
@@ -318,7 +318,7 @@ function require(modname) {
 <script src="gen/ui.js"></script>
 <!-- <script src="src/audio/votrax.js"></script> -->
 
-<script src="local/lzg.js"></script>
+<!--<script src="local/lzg.js"></script>-->
 
 <script>
   startUI(true);
diff --git a/presets/astrocade/01-helloworlds.asm b/presets/astrocade/01-helloworlds.asm
index e05df2b9..7f9868eb 100644
--- a/presets/astrocade/01-helloworlds.asm
+++ b/presets/astrocade/01-helloworlds.asm
@@ -29,7 +29,7 @@ PrgStart:   DI                      ; Disable interrupts
             DB      32              ; ... and 32 pixels from the top of the screen
             DB      00001100b       ; ... with no enlargement, foreground color = 11, background color = 00          
             DW      PrgName         ; ... to show string at PrgName
-;            EXIT                    ; Exit interpreter mode
+            EXIT                    ; Exit interpreter mode
 Loop:       JP      Loop            ; Play infinite loop
 Palettes:   DB      $BF,$00,$00,$00 ; Left color palette (11b, 10b, 01b, 00b)
             DB      $E7,$9A,$39,$19 ; Right color palette (11b, 10b, 01b, 00b)
diff --git a/presets/astrocade/acheader.s b/presets/astrocade/acheader.s
new file mode 100644
index 00000000..78020bce
--- /dev/null
+++ b/presets/astrocade/acheader.s
@@ -0,0 +1,11 @@
+
+; Minimal header file for use with Astrocade C programs
+
+            .area _CODE
+            
+            .byte      0x55            ; ... with the code for a normal menued cartridge
+            .word      0x0218          ; Initialize menu
+            .word      PrgName         ; ... with string at PrgName
+            .word      _main           ; ... such that selecting the program enters PrgStart
+PrgName:    .ascii     "8BITWORKSHOP"  ; String
+            .byte      0               ; ... which must be followed by 0
diff --git a/presets/astrocade/skeleton.sdcc b/presets/astrocade/skeleton.sdcc
new file mode 100644
index 00000000..340e0e49
--- /dev/null
+++ b/presets/astrocade/skeleton.sdcc
@@ -0,0 +1,8 @@
+
+//#link "acheader.s"
+
+#include <string.h>
+
+void main() {
+  memset((void*)0x4000, 0, 0xe00); // clear screen, avoid vars and stack (1e00-1fff)
+}
diff --git a/presets/astrocade/skeleton.zmac b/presets/astrocade/skeleton.zmac
new file mode 100644
index 00000000..7f9868eb
--- /dev/null
+++ b/presets/astrocade/skeleton.zmac
@@ -0,0 +1,35 @@
+; Demo 1: HELLO, WORLDS! / 2018 hxlnt
+; Inspired by Adam Trionfo's Hello World
+; http://www.ballyalley.com/ml/ml_homebrew/helloworld/hello.asm
+; Assemble with Zmac 1.3
+; From: https://github.com/hxlnt/astrocade
+
+            INCLUDE "hvglib.h"      ; Include HVGLIB library
+            ORG     FIRSTC          ; Initialize at beginning of cartridge ROM area
+            DB      $55             ; ... with the code for a normal menued cartridge
+            DW      MENUST          ; Initialize menu
+            DW      PrgName         ; ... with string at PrgName
+            DW      PrgStart        ; ... such that selecting the program enters PrgStart
+PrgName:    DB      "HELLO, WORLDS!"; String
+            DB      0               ; ... which must be followed by 0
+PrgStart:   DI                      ; Disable interrupts
+            SYSTEM  INTPC           ; Begin interpreter mode
+            DO      SETOUT          ; Set output ports
+            DB      100*2           ; ... with VBLANK line set to line 100
+            DB      112/4           ; ... with color boundary 112 pixels from the left of the screen
+            DB      00001000b       ; ... with screen interrupts reenabled 
+            DO      COLSET          ; Set color palettes
+            DW      Palettes        ; ... with the values at Palettes
+            DO      FILL            ; Set background fill
+            DW      NORMEM          ; ... starting at the beginning of screen RAM
+            DW      100*BYTEPL      ; ... and going for 100 lines
+            DB      00010010b       ; ... with a fill pattern of three different colored pixels
+            DO      STRDIS          ; Set string display
+            DB      0               ; ... starting 0 pixels from the left of the screen
+            DB      32              ; ... and 32 pixels from the top of the screen
+            DB      00001100b       ; ... with no enlargement, foreground color = 11, background color = 00          
+            DW      PrgName         ; ... to show string at PrgName
+            EXIT                    ; Exit interpreter mode
+Loop:       JP      Loop            ; Play infinite loop
+Palettes:   DB      $BF,$00,$00,$00 ; Left color palette (11b, 10b, 01b, 00b)
+            DB      $E7,$9A,$39,$19 ; Right color palette (11b, 10b, 01b, 00b)
diff --git a/src/platform/astrocade.ts b/src/platform/astrocade.ts
index e4de58c7..e8d54b4e 100644
--- a/src/platform/astrocade.ts
+++ b/src/platform/astrocade.ts
@@ -11,7 +11,7 @@ const ASTROCADE_PRESETS = [
   {id:'03-horcbpal.asm', name:'Paddle Demo'},
 ];
 
-// TODO: fix keys, more controllers, paddles, vibrato/noise, border color
+// TODO: fix keys, more controllers, paddles, vibrato/noise, border color, full refresh
 
 const ASTROCADE_KEYCODE_MAP = makeKeycodeMap([
   // player 1
@@ -53,10 +53,8 @@ const ASTROCADE_KEYCODE_MAP = makeKeycodeMap([
 const _BallyAstrocadePlatform = function(mainElement) {
 
   var cpu, ram, membus, iobus, rom, bios;
-  var probe;
   var video, timer, pixels;
   var audio, psg;
-  var inputs = new Uint8Array(0x20);
   //var watchdog_counter;
   const swidth = 160;
   const sheight = 102;
@@ -66,6 +64,8 @@ const _BallyAstrocadePlatform = function(mainElement) {
   const PIXEL_ON = 0xffeeeeee;
   const PIXEL_OFF = 0xff000000;
 
+  // state variables
+  var inputs = new Uint8Array(0x20);
   var magicop = 0;
   var xpand = 0;
   var xplower = false;
@@ -157,8 +157,11 @@ const _BallyAstrocadePlatform = function(mainElement) {
 
   start = function() {
     ram = new RAM(0x2000);
-    bios = new lzgmini().decode(stringToByteArray(atob(window['ASTROCADE_LZGROM'])));
-    //displayPCs = new Uint16Array(new ArrayBuffer(0x2000*2));
+    var lzgrom = window['ASTROCADE_LZGROM'];
+    if (lzgrom)
+      bios = new lzgmini().decode(stringToByteArray(atob(lzgrom)));
+    else
+      bios = padBytes([0xf3, 0x31, 0x00, 0x50, 0x21, 0x05, 0x20, 0x7e, 0x23, 0x66, 0x6f, 0xe9], 0x2000); // SP=$5000, jump to ($2005)
     membus = {
       read: newAddressDecoder([
 				[0x0000, 0x1fff, 0x1fff, function(a) { return bios ? bios[a] : 0; }],
@@ -281,14 +284,32 @@ const _BallyAstrocadePlatform = function(mainElement) {
     cpu.loadState(state.c);
     ram.mem.set(state.b);
     palette.set(state.palette);
+    magicop = state.magicop;
+    xpand = state.xpand;
+    xplower = state.xplower;
+    shift2 = state.shift2;
+    horcb = state.horcb;
+    inmod = state.inmod;
+    inlin = state.inlin;
+    infbk = state.infbk;
+    verbl = state.verbl;
     this.loadControlsState(state);
   }
   saveState() {
     return {
-      c:this.getCPUState(),
-      b:ram.mem.slice(0),
-      in:inputs.slice(0),
-      palette:palette.slice(0),
+      c: this.getCPUState(),
+      b: ram.mem.slice(0),
+      in: inputs.slice(0),
+      palette: palette.slice(0),
+      magicop: magicop,
+      xpand: xpand,
+      xplower: xplower,
+      shift2: shift2,
+      horcb: horcb,
+      inmod: inmod,
+      inlin: inlin,
+      infbk: infbk,
+      verbl: verbl,
     };
   }
   loadControlsState(state) {
diff --git a/src/worker/workermain.js b/src/worker/workermain.js
index b9fc6cdb..82c6be32 100644
--- a/src/worker/workermain.js
+++ b/src/worker/workermain.js
@@ -917,6 +917,9 @@ function assembleSDASZ80(step) {
           path:step.path,
           msg:matches[1]
         });
+      } else {
+        // ?ASxxxx-Error-<q> in line 1627 of cosmic.asm
+        //    <q> missing or improper operators, terminators, or delimiters
       }
     }
     var ASZ80 = sdasz80({