diff --git a/src/main/java/dk/camelot64/kickc/fragment/AsmFragmentManager.java b/src/main/java/dk/camelot64/kickc/fragment/AsmFragmentManager.java
index f224f5345..f77bce4dc 100644
--- a/src/main/java/dk/camelot64/kickc/fragment/AsmFragmentManager.java
+++ b/src/main/java/dk/camelot64/kickc/fragment/AsmFragmentManager.java
@@ -7,8 +7,7 @@ import org.antlr.v4.runtime.*;
 import java.io.IOException;
 import java.io.InputStream;
 import java.net.URL;
-import java.util.HashMap;
-import java.util.Map;
+import java.util.*;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
@@ -102,166 +101,53 @@ public class AsmFragmentManager {
          }
       }
 
-      if (signature.startsWith("xby=")) {
-         String subSignature = "aby=" + signature.substring(4);
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString(subCharStream.toString() + "\ntax\n");
-            return result;
-         }
-      }
-      if (signature.startsWith("yby=")) {
-         String subSignature = "aby=" + signature.substring(4);
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString(subCharStream.toString() + "\ntay\n");
-            return result;
-         }
-      }
-      if (signature.startsWith("zpby1=")) {
-         String subSignature = "aby=" + signature.substring(6).replace("zpby1", "aby").replace("zpby2", "zpby1").replace("zpby3", "zpby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString(subCharStream.toString().replace("zpby2", "zpby3").replace("zpby1", "zpby2") + "\nsta {zpby1}\n");
-            return result;
-         }
-      }
-      if (signature.startsWith("zpsby1=")) {
-         String subSignature = regexpRewriteSignature(signature, "zpsby1=(.*)", "asby=$1").replace("zpsby2", "zpsby1").replace("zpsby3", "zpsby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString(subCharStream.toString().replace("zpsby2", "zpsby3").replace("zpsby1", "zpbsy2") + "\nsta {zpsby1}\n");
-            return result;
-         }
-      }
-      if (signature.startsWith("_deref_zpptrby1=")) {
-         String subSignature = regexpRewriteSignature(signature, "_deref_zpptrby1=(.*)", "aby=$1").replace("zpptrby2", "zpptrby1").replace("zpptrby3", "zpptrby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString(subCharStream.toString().replace("zpptrby2", "zpptrby3").replace("zpptrby1", "zpptrby2") + "\n"+"ldy #0\n" + "sta ({zpptrby1}),y\n");
-            return result;
-         }
-      }
-      if (signature.startsWith("_deref_cowo1=")) {
-         String subSignature = regexpRewriteSignature(signature, "_deref_cowo1=(.*)", "aby=$1").replace("cowo2", "cowo1").replace("cowo3", "cowo2").replace("coby2", "coby1").replace("coby3", "coby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString(subCharStream.toString().replace("cowo2", "cowo3").replace("cowo1", "cowo2").replace("coby2", "coby3").replace("coby1", "coby2") + "\nsta {cowo1}\n");
-            return result;
-         }
-      }
-      if (signature.contains("=zpby1_") && !signature.matches(".*=.*aby.*")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=zpby1_(.*)", "$1=aby_$2").replace("zpby2", "zpby1").replace("zpby3", "zpby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("lda {zpby1}\n"+subCharStream.toString().replace("zpby2", "zpby3").replace("zpby1", "zpby2"));
-            return result;
-         }
-      }
-      if (signature.contains("=zpsby1_") && !signature.matches(".*=.*asby.*") && !signature.matches(".*=.*aby.*")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=zpsby1_(.*)", "$1=asby_$2").replace("zpsby2", "zpsby1").replace("zpsby3", "zpsby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("lda {zpsby1}\n"+subCharStream.toString().replace("zpsby2", "zpsby3").replace("zpsby1", "zpsby2"));
-            return result;
-         }
-      }
-      if (signature.contains("=zpsby1") && !signature.matches(".*=.*asby") && !signature.matches(".*=.*aby")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=zpsby1", "$1=asby").replace("zpsby2", "zpsby1").replace("zpsby3", "zpsby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("lda {zpsby1}\n"+subCharStream.toString().replace("zpsby2", "zpsby3").replace("zpsby1", "zpsby2"));
-            return result;
-         }
-      }
-      if (signature.contains("=xby_") && !signature.matches(".*=.*aby.*")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=xby_(.*)", "$1=aby_$2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("txa\n"+subCharStream.toString());
-            return result;
-         }
-      }
-      if (signature.contains("=yby_") && !signature.matches(".*=.*aby.*")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=yby_(.*)", "$1=aby_$2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("tya\n"+subCharStream.toString());
-            return result;
-         }
-      }
-      if (signature.contains("=_deref_cowo1") && !signature.matches(".*=.*aby.*")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=_deref_cowo1_(.*)", "$1=aby_$2").replace("cowo2", "cowo1").replace("cowo3", "cowo2").replace("coby2", "coby1").replace("coby3", "coby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("lda {cowo1}\n"+subCharStream.toString().replace("cowo2", "cowo3").replace("cowo1", "cowo2").replace("coby2", "coby3").replace("coby1", "coby2"));
-            return result;
-         }
-      }
-      if (signature.contains("=_deref_zpptrby1") && !signature.matches(".*=.*aby.*")&& !signature.matches(".*=.*yby.*")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=_deref_zpptrby1(.*)", "$1=aby$2").replace("zpptrby2", "zpptrby1").replace("zpptrby3", "zpptrby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("ldy #0\n"+"lda ({zpptrby1}),y\n"+subCharStream.toString().replace("zpptrby2", "zpptrby3").replace("zpptrby1", "zpptrby2"));
-            return result;
-         }
-      }
-      if (signature.endsWith("_derefidx_aby") && !signature.matches(".*=.*yby.*")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=(.*)_derefidx_aby", "$1=$2_derefidx_yby");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("tay\n"+subCharStream.toString());
-            return result;
-         }
-      }
-      if (signature.endsWith("_derefidx_aby") && !signature.matches(".*=.*xby.*")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=(.*)_derefidx_aby", "$1=$2_derefidx_xby");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("tax\n"+subCharStream.toString());
-            return result;
-         }
-      }
-      if (signature.endsWith("_derefidx_zpby1") && !signature.matches(".*=.*yby.*")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=(.*)_derefidx_zpby1", "$1=$2_derefidx_yby").replace("zpby2", "zpby1").replace("zpby3", "zpby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("ldy {zpby1}\n"+subCharStream.toString().replace("zpby2", "zpby3").replace("zpby1", "zpby2"));
-            return result;
-         }
-      }
-      if (signature.endsWith("_derefidx_zpby1") && !signature.matches(".*=.*xby.*")) {
-         String subSignature = regexpRewriteSignature(signature, "(.*)=(.*)_derefidx_zpby1", "$1=$2_derefidx_xby").replace("zpby2", "zpby1").replace("zpby3", "zpby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("ldx {zpby1}\n"+subCharStream.toString().replace("zpby2", "zpby3").replace("zpby1", "zpby2"));
-            return result;
-         }
-      }
+      Map<String, String> mapZpsby = new LinkedHashMap<>();
+      mapZpsby.put("zpsby2", "zpsby1");
+      mapZpsby.put("zpsby3", "zpsby2");
+      Map<String, String> mapZpby = new LinkedHashMap<>();
+      mapZpby.put("zpby2", "zpby1");
+      mapZpby.put("zpby3", "zpby2");
+      Map<String, String> mapZpptrby = new LinkedHashMap<>();
+      mapZpptrby.put("zpptrby2", "zpptrby1");
+      mapZpptrby.put("zpptrby3", "zpptrby2");
+      Map<String, String> mapConst = new LinkedHashMap<>();
+      mapConst.put("cowo2", "cowo1");
+      mapConst.put("cowo3", "cowo2");
+      mapConst.put("coby2", "coby1");
+      mapConst.put("coby3", "coby2");
 
-      // TODO: Find a more general replacement method for comparators!
-      if (signature.startsWith("_deref_cowo1_neq_") && !signature.contains("aby")) {
-         String subSignature = regexpRewriteSignature(signature, "_deref_cowo1_neq_(.*)", "aby_neq_$1").replace("cowo2", "cowo1").replace("cowo3", "cowo2").replace("coby2", "coby1").replace("coby3", "coby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("lda {cowo1}\n"+subCharStream.toString().replace("cowo2", "cowo3").replace("cowo1", "cowo2").replace("coby2", "coby3").replace("coby1", "coby2"));
-            return result;
-         }
-      }
-      if (signature.startsWith("zpsby1_lt_") && !signature.contains("aby") && !signature.contains("asby")) {
-         String subSignature = regexpRewriteSignature(signature, "zpsby1_lt_(.*)", "asby_lt_$1").replace("zpsby2", "zpsby1").replace("zpsby3", "zpsby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("lda {zpsby1}\n"+subCharStream.toString().replace("zpsby2", "zpsby3").replace("zpsby1", "zpbsy2"));
-            return result;
-         }
-      }
-      if (signature.startsWith("zpby1_lt_") && !signature.contains("aby") && !signature.contains("asby")) {
-         String subSignature = regexpRewriteSignature(signature, "zpby1_lt_(.*)", "aby_lt_$1").replace("zpby2", "zpby1").replace("zpby3", "zpby2");
-         CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
-         if (subCharStream != null) {
-            CharStream result = CharStreams.fromString("lda {zpby1}\n"+subCharStream.toString().replace("zpby2", "zpby3").replace("zpby1", "zpby2"));
-            return result;
+      List<FragmentSynthesis> synths = new ArrayList<>();
+      synths.add(new FragmentSynthesis("xby=(.*)", null, null, "aby=$1", "tax\n", null));
+      synths.add(new FragmentSynthesis("yby=(.*)", null, null, "aby=$1", "tay\n", null));
+      synths.add(new FragmentSynthesis("zpby1=(.*)", ".*=.*zps?by1.*", null, "aby=$1", "sta {zpby1}\n", mapZpby));
+      synths.add(new FragmentSynthesis("zpsby1=(.*)", ".*=.*zps?by1.*", null, "asby=$1", "sta {zpsby1}\n", mapZpsby));
+      synths.add(new FragmentSynthesis("_deref_cowo1=(.*)", null, null, "aby=$1", "sta {cowo1}\n", mapConst));
+      synths.add(new FragmentSynthesis("_deref_zpptrby1=(.*)", ".*=.*zpptrs?by1.*", null, "aby=$1", "ldy #0\n" + "sta ({zpptrby1}),y\n", mapZpptrby));
+
+      synths.add(new FragmentSynthesis("(.*)=xby(.*)", ".*=.*as?by.*", "txa\n", "$1=aby$2", null, null));
+      synths.add(new FragmentSynthesis("(.*)=yby(.*)", ".*=.*as?by.*", "tya\n", "$1=aby$2", null, null));
+      synths.add(new FragmentSynthesis("(.*)=zpby1(.*)", ".*=.*as?by.*|zps?by1=.*", "lda {zpby1}\n", "$1=aby$2", null, mapZpby));
+      synths.add(new FragmentSynthesis("(.*)=zpsby1(.*)", ".*=.*as?by.*|zps?by1=.*", "lda {zpsby1}\n", "$1=aby$2", null, mapZpsby));
+      synths.add(new FragmentSynthesis("(.*)=_deref_cowo1(.*)", ".*=.*as?by.*", "lda {cowo1}\n", "$1=aby$2", null, mapConst));
+      synths.add(new FragmentSynthesis("(.*)=_deref_zpptrby1(.*)", ".*=.*as?by.*|.*=.*ys?by.*", "ldy #0\n"+"lda ({zpptrby1}),y\n", "$1=aby$2", null, mapZpptrby));
+
+      synths.add(new FragmentSynthesis("zpby1=zpby1(.*)", ".*=.*as?by.*", "lda {zpby1}\n", "aby=aby$1", "sta {zpby1}\n", mapZpby));
+      synths.add(new FragmentSynthesis("zpsby1=zpsby1(.*)", ".*=.*as?by.*", "lda {zpsby1}\n", "aby=aby$1", "sta {zpsby1}\n", mapZpby));
+
+      synths.add(new FragmentSynthesis("(.*)=(.*)_derefidx_aby", ".*=.*ys?by.*", "tay\n", "$1=$2_derefidx_yby", null, null));
+      synths.add(new FragmentSynthesis("(.*)=(.*)_derefidx_aby", ".*=.*xs?by.*", "tax\n", "$1=$2_derefidx_xby", null, null));
+      synths.add(new FragmentSynthesis("(.*)=(.*)_derefidx_zpby1", ".*=.*ys?by.*", "ldy {zpby1}\n", "$1=$2_derefidx_yby", null, mapZpby));
+      synths.add(new FragmentSynthesis("(.*)=(.*)_derefidx_zpby1", ".*=.*xs?by.*", "ldx {zpby1}\n", "$1=$2_derefidx_xby", null, mapZpby));
+
+      synths.add(new FragmentSynthesis("zpby1_(lt|gt|le|ge|eq|neq)_(.*)", ".*as?by.*", "lda {zpby1}\n", "aby_$1_$2", null, mapZpby));
+      synths.add(new FragmentSynthesis("zpsby1_(lt|gt|le|ge|eq|neq)_(.*)", ".*as?by.*", "lda {zpsby1}\n", "asby_$1_$2", null, mapZpsby));
+      synths.add(new FragmentSynthesis("_deref_cowo1_(lt|gt|le|ge|eq|neq)_(.*)", ".*as?by.*", "lda {cowo1}\n", "aby_$1_$2", null, mapConst));
+      synths.add(new FragmentSynthesis("_deref_zpptrby1_(lt|gt|le|ge|eq|neq)_(.*)", ".*=.*as?by.*|.*=.*ys?by.*", "ldy #0\n"+"lda ({zpptrby1}),y\n", "aby_$1_$2", null, mapZpptrby));
+
+      for (FragmentSynthesis synth : synths) {
+         CharStream synthesized = synth.synthesize(signature);
+         if(synthesized!=null) {
+            return synthesized;
          }
       }
 
@@ -269,6 +155,63 @@ public class AsmFragmentManager {
 
    }
 
+   /** AsmFragment synthesis based on matching fragment signature and reusing another fragment with added prefix/postfix and some bind-mappings*/
+   private static class FragmentSynthesis {
+
+      private String sigMatch;
+      private String sigAvoid;
+      private String asmPrefix;
+      private String sigReplace;
+      private String asmPostfix;
+      private Map<String, String> bindMappings;
+
+      public FragmentSynthesis(String sigMatch, String sigAvoid, String asmPrefix, String sigReplace, String asmPostfix, Map<String, String> bindMappings) {
+         this.sigMatch = sigMatch;
+         this.sigAvoid = sigAvoid;
+         this.asmPrefix = asmPrefix;
+         this.sigReplace = sigReplace;
+         this.asmPostfix = asmPostfix;
+         this.bindMappings = bindMappings;
+      }
+
+      public CharStream synthesize(String signature) {
+         if (signature.matches(sigMatch) ) {
+            if (sigAvoid == null || !signature.matches(sigAvoid)) {
+               String subSignature = regexpRewriteSignature(signature, sigMatch, sigReplace);
+               if(bindMappings!=null) {
+                  for (String bound : bindMappings.keySet()) {
+                     subSignature = subSignature.replace(bound, bindMappings.get(bound));
+                  }
+               }
+               CharStream subCharStream = loadOrSynthesizeFragment(subSignature);
+               if (subCharStream != null) {
+                  StringBuilder newFragment = new StringBuilder();
+                  if(asmPrefix!=null) {
+                     newFragment.append(asmPrefix);
+                  }
+                  String subFragment = subCharStream.toString();
+                  if(bindMappings!=null) {
+                     List<String> reverse = new ArrayList<>(bindMappings.keySet());
+                     Collections.reverse(reverse);
+                     for (String bound : reverse) {
+                        subFragment = subFragment.replace(bindMappings.get(bound), bound);
+                     }
+                  }
+                  newFragment.append(subFragment);
+                  if(asmPostfix!=null) {
+                     newFragment.append("\n");
+                     newFragment.append(asmPostfix);
+                  }
+                  return CharStreams.fromString(newFragment.toString());
+               }
+            }
+         }
+         return null;
+      }
+
+   }
+
+
    private static String regexpRewriteSignature(String signature, String match, String replace) {
       Pattern p = Pattern.compile(match);
       Matcher m = p.matcher(signature);
diff --git a/src/main/java/dk/camelot64/kickc/fragment/asm/aby=aby_bor__deref_zpptrby1.asm b/src/main/java/dk/camelot64/kickc/fragment/asm/aby=aby_bor__deref_zpptrby1.asm
new file mode 100644
index 000000000..4faff4c29
--- /dev/null
+++ b/src/main/java/dk/camelot64/kickc/fragment/asm/aby=aby_bor__deref_zpptrby1.asm
@@ -0,0 +1,2 @@
+ldy #0
+ora ({zpptrby1}),y
\ No newline at end of file
diff --git a/src/main/java/dk/camelot64/kickc/fragment/asm/zpby1=zpby1_minus_aby.asm b/src/main/java/dk/camelot64/kickc/fragment/asm/zpby1=zpby1_minus_aby.asm
new file mode 100644
index 000000000..398b5c04c
--- /dev/null
+++ b/src/main/java/dk/camelot64/kickc/fragment/asm/zpby1=zpby1_minus_aby.asm
@@ -0,0 +1,5 @@
+sta $ff
+lda {zpby1}
+sec
+sbc $ff
+sta {zpby1}
\ No newline at end of file
diff --git a/src/main/java/dk/camelot64/kickc/fragment/asm/zpby1=zpby1_ror_1.asm b/src/main/java/dk/camelot64/kickc/fragment/asm/zpby1=zpby1_ror_1.asm
new file mode 100644
index 000000000..958760424
--- /dev/null
+++ b/src/main/java/dk/camelot64/kickc/fragment/asm/zpby1=zpby1_ror_1.asm
@@ -0,0 +1 @@
+lsr {zpby1}
\ No newline at end of file
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.asm b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.asm
index 65db375f5..57f1e5f47 100644
--- a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.asm
+++ b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.asm
@@ -260,9 +260,9 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
+    lda plot_bit,x
     ldy #0
-    lda (plotter),y
-    ora plot_bit,x
+    ora (plotter),y
     sta (plotter),y
     rts
 }
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.log b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.log
index f414f7838..9f2f2e9ba 100644
--- a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.log
+++ b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.log
@@ -16788,8 +16788,7 @@ init_plot_tables: {
     ldx x
     sta plot_bit,x
   //SEG308 [166] (byte) init_plot_tables::bits#1 ← (byte) init_plot_tables::bits#3 >> (byte) 1 [ init_plot_tables::x#2 init_plot_tables::bits#1 ] ( main:0::init_plot_tables:6 [ init_plot_tables::x#2 init_plot_tables::bits#1 ] ) -- zpby1=zpby1_ror_1 
-    lsr
-    sta bits
+    lsr bits
   //SEG309 [167] if((byte) init_plot_tables::bits#1!=(byte) 0) goto init_plot_tables::@10 [ init_plot_tables::x#2 ] ( main:0::init_plot_tables:6 [ init_plot_tables::x#2 ] ) -- zpby1_neq_0_then_la1 
     lda bits
     bne b10
@@ -17010,31 +17009,6 @@ Removing always clobbered register reg byte a as potential for zp ZP_BYTE:27 [ l
 Removing always clobbered register reg byte a as potential for zp ZP_BYTE:28 [ line_xdyd::e#3 line_xdyd::e#0 line_xdyd::e#6 line_xdyd::e#2 line_xdyd::e#1 ]
 Statement [109] (byte*) plot::plotter_y#2 ← (byte*) plot::plotter_y#1 lo= (byte~) plot::$3 [ plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] ) always clobbers reg byte a 
 Statement [110] (byte*) plot::plotter#0 ← (byte*) plot::plotter_x#2 + (byte*) plot::plotter_y#2 [ plot::x#4 plot::plotter#0 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::x#4 plot::plotter#0 ] ) always clobbers reg byte a 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte a [ plot::$5 ] zp ZP_BYTE:68 [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte x [ plot::$5 ] zp ZP_BYTE:68 [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte y [ plot::$5 ] zp ZP_BYTE:68 [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte y [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte y [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte y [ plot::$6 ] 
-MISSING FRAGMENTS
-  zpby1=_deref_zpptrby1_bor_aby
-  zpby1=_deref_zpptrby1_bor_xby
-  zpby1=_deref_zpptrby1_bor_yby
-  aby=_deref_zpptrby1_bor_aby
-  aby=_deref_zpptrby1_bor_xby
-  aby=_deref_zpptrby1_bor_yby
-  xby=_deref_zpptrby1_bor_aby
-  xby=_deref_zpptrby1_bor_xby
-  xby=_deref_zpptrby1_bor_yby
-  yby=_deref_zpptrby1_bor_aby
-  yby=_deref_zpptrby1_bor_xby
-  yby=_deref_zpptrby1_bor_yby
 Statement [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) always clobbers reg byte a reg byte y 
 Removing always clobbered register reg byte y as potential for zp ZP_BYTE:2 [ lines::l#2 lines::l#1 ]
 Removing always clobbered register reg byte y as potential for zp ZP_BYTE:3 [ line_ydxi::xd#2 line_ydxi::xd#1 line_ydxi::xd#0 ]
@@ -17101,31 +17075,6 @@ Statement [96] (byte) line_ydxi::e#2 ← (byte) line_ydxi::e#1 - (byte) line_ydx
 Statement [105] (byte*) plot::plotter_x#2 ← (byte*) plot::plotter_x#1 lo= (byte~) plot::$1 [ plot::x#4 plot::y#4 plot::plotter_x#2 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::x#4 plot::y#4 plot::plotter_x#2 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::x#4 plot::y#4 plot::plotter_x#2 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::x#4 plot::y#4 plot::plotter_x#2 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::x#4 plot::y#4 plot::plotter_x#2 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::x#4 plot::y#4 plot::plotter_x#2 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::x#4 plot::y#4 plot::plotter_x#2 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::x#4 plot::y#4 plot::plotter_x#2 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::x#4 plot::y#4 plot::plotter_x#2 ] ) always clobbers reg byte a 
 Statement [109] (byte*) plot::plotter_y#2 ← (byte*) plot::plotter_y#1 lo= (byte~) plot::$3 [ plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::x#4 plot::plotter_x#2 plot::plotter_y#2 ] ) always clobbers reg byte a 
 Statement [110] (byte*) plot::plotter#0 ← (byte*) plot::plotter_x#2 + (byte*) plot::plotter_y#2 [ plot::x#4 plot::plotter#0 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::x#4 plot::plotter#0 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::x#4 plot::plotter#0 ] ) always clobbers reg byte a 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte a [ plot::$5 ] zp ZP_BYTE:68 [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte x [ plot::$5 ] zp ZP_BYTE:68 [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte y [ plot::$5 ] zp ZP_BYTE:68 [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte y [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte y [ plot::$6 ] 
-Potential register analysis [112] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte y [ plot::$6 ] 
-MISSING FRAGMENTS
-  zpby1=_deref_zpptrby1_bor_aby
-  zpby1=_deref_zpptrby1_bor_xby
-  zpby1=_deref_zpptrby1_bor_yby
-  aby=_deref_zpptrby1_bor_aby
-  aby=_deref_zpptrby1_bor_xby
-  aby=_deref_zpptrby1_bor_yby
-  xby=_deref_zpptrby1_bor_aby
-  xby=_deref_zpptrby1_bor_xby
-  xby=_deref_zpptrby1_bor_yby
-  yby=_deref_zpptrby1_bor_aby
-  yby=_deref_zpptrby1_bor_xby
-  yby=_deref_zpptrby1_bor_yby
 Statement [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) always clobbers reg byte a reg byte y 
 Statement [113] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] ) always clobbers reg byte y 
 Statement [116] (byte) line_xdyi::e#0 ← (byte) line_xdyi::yd#2 >> (byte) 1 [ line_xdyi::yd#2 line_xdyi::x#6 line_xdyi::y#5 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::e#0 ] ( main:0::lines:7::line:20::line_xdyi:34 [ lines::l#2 line_xdyi::yd#2 line_xdyi::x#6 line_xdyi::y#5 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::e#0 ] main:0::lines:7::line:20::line_xdyi:79 [ lines::l#2 line_xdyi::yd#2 line_xdyi::x#6 line_xdyi::y#5 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::e#0 ] ) always clobbers reg byte a 
@@ -17235,97 +17184,94 @@ Uplift attempts [init_plot_tables] 10000/138240 (limiting to 10000)
 Uplifting [init_plot_tables] best 16146 combination reg byte y [ init_plot_tables::bits#3 init_plot_tables::bits#4 init_plot_tables::bits#1 ] zp ZP_PTR_BYTE:32 [ init_plot_tables::yoffs#2 init_plot_tables::yoffs#4 init_plot_tables::yoffs#1 ] reg byte x [ init_plot_tables::x#2 init_plot_tables::x#1 ] reg byte x [ init_plot_tables::y#2 init_plot_tables::y#1 ] reg byte a [ init_plot_tables::$0 ] reg byte a [ init_plot_tables::$7 ] reg byte a [ init_plot_tables::$8 ] reg byte a [ init_plot_tables::$9 ] zp ZP_BYTE:77 [ init_plot_tables::$10 ] zp ZP_BYTE:73 [ init_plot_tables::$6 ] 
 Limited combination testing to 10000 combinations of 138240 possible.
 Uplift attempts [plot] 10000/46080 (limiting to 10000)
-Uplifting [plot] best 15862 combination reg byte y [ plot::y#4 plot::y#1 plot::y#0 plot::y#3 plot::y#2 ] reg byte x [ plot::x#4 plot::x#1 plot::x#0 plot::x#3 plot::x#2 ] reg byte a [ plot::$0 ] reg byte a [ plot::$1 ] reg byte a [ plot::$2 ] reg byte a [ plot::$3 ] zp ZP_PTR_BYTE:63 [ plot::plotter_y#2 ] reg byte alu [ plot::$5 ] zp ZP_BYTE:68 [ plot::$6 ] zp ZP_PTR_BYTE:54 [ plot::plotter_x#1 ] zp ZP_PTR_BYTE:60 [ plot::plotter_y#1 ] zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] zp ZP_PTR_BYTE:57 [ plot::plotter_x#2 ] 
+Uplifting [plot] best 15861 combination reg byte y [ plot::y#4 plot::y#1 plot::y#0 plot::y#3 plot::y#2 ] reg byte x [ plot::x#4 plot::x#1 plot::x#0 plot::x#3 plot::x#2 ] reg byte a [ plot::$0 ] reg byte a [ plot::$1 ] reg byte a [ plot::$2 ] reg byte a [ plot::$3 ] zp ZP_PTR_BYTE:63 [ plot::plotter_y#2 ] reg byte a [ plot::$5 ] zp ZP_BYTE:68 [ plot::$6 ] zp ZP_PTR_BYTE:54 [ plot::plotter_x#1 ] zp ZP_PTR_BYTE:60 [ plot::plotter_y#1 ] zp ZP_PTR_BYTE:65 [ plot::plotter#0 ] zp ZP_PTR_BYTE:57 [ plot::plotter_x#2 ] 
 Limited combination testing to 10000 combinations of 46080 possible.
-Uplifting [line_xdyi] best 15766 combination zp ZP_BYTE:16 [ line_xdyi::e#3 line_xdyi::e#0 line_xdyi::e#6 line_xdyi::e#2 line_xdyi::e#1 ] zp ZP_BYTE:15 [ line_xdyi::y#3 line_xdyi::y#5 line_xdyi::y#0 line_xdyi::y#1 line_xdyi::y#6 line_xdyi::y#2 ] zp ZP_BYTE:69 [ line_xdyi::$8 ] reg byte x [ line_xdyi::x#3 line_xdyi::x#6 line_xdyi::x#0 line_xdyi::x#1 line_xdyi::x#2 ] zp ZP_BYTE:11 [ line_xdyi::yd#2 line_xdyi::yd#0 line_xdyi::yd#1 ] zp ZP_BYTE:12 [ line_xdyi::xd#5 line_xdyi::xd#0 line_xdyi::xd#1 ] zp ZP_BYTE:13 [ line_xdyi::x1#6 line_xdyi::x1#0 line_xdyi::x1#1 ] 
-Uplifting [line_xdyd] best 15670 combination zp ZP_BYTE:28 [ line_xdyd::e#3 line_xdyd::e#0 line_xdyd::e#6 line_xdyd::e#2 line_xdyd::e#1 ] zp ZP_BYTE:27 [ line_xdyd::y#3 line_xdyd::y#5 line_xdyd::y#0 line_xdyd::y#1 line_xdyd::y#6 line_xdyd::y#2 ] zp ZP_BYTE:71 [ line_xdyd::$8 ] reg byte x [ line_xdyd::x#3 line_xdyd::x#6 line_xdyd::x#0 line_xdyd::x#1 line_xdyd::x#2 ] zp ZP_BYTE:23 [ line_xdyd::yd#2 line_xdyd::yd#0 line_xdyd::yd#1 ] zp ZP_BYTE:24 [ line_xdyd::xd#5 line_xdyd::xd#0 line_xdyd::xd#1 ] zp ZP_BYTE:25 [ line_xdyd::x1#6 line_xdyd::x1#0 line_xdyd::x1#1 ] 
-Uplifting [line_ydxi] best 15544 combination zp ZP_BYTE:8 [ line_ydxi::e#3 line_ydxi::e#0 line_ydxi::e#6 line_ydxi::e#2 line_ydxi::e#1 ] reg byte x [ line_ydxi::x#3 line_ydxi::x#5 line_ydxi::x#1 line_ydxi::x#0 line_ydxi::x#6 line_ydxi::x#2 ] reg byte a [ line_ydxi::$8 ] zp ZP_BYTE:7 [ line_ydxi::y#3 line_ydxi::y#6 line_ydxi::y#1 line_ydxi::y#0 line_ydxi::y#2 ] zp ZP_BYTE:3 [ line_ydxi::xd#2 line_ydxi::xd#1 line_ydxi::xd#0 ] zp ZP_BYTE:4 [ line_ydxi::yd#5 line_ydxi::yd#1 line_ydxi::yd#0 ] zp ZP_BYTE:5 [ line_ydxi::y1#6 line_ydxi::y1#1 line_ydxi::y1#0 ] 
-Uplifting [line_ydxd] best 15418 combination zp ZP_BYTE:22 [ line_ydxd::e#3 line_ydxd::e#0 line_ydxd::e#6 line_ydxd::e#2 line_ydxd::e#1 ] reg byte x [ line_ydxd::x#3 line_ydxd::x#5 line_ydxd::x#1 line_ydxd::x#0 line_ydxd::x#6 line_ydxd::x#2 ] reg byte a [ line_ydxd::$8 ] zp ZP_BYTE:21 [ line_ydxd::y#3 line_ydxd::y#6 line_ydxd::y#1 line_ydxd::y#0 line_ydxd::y#2 ] zp ZP_BYTE:17 [ line_ydxd::xd#2 line_ydxd::xd#1 line_ydxd::xd#0 ] zp ZP_BYTE:18 [ line_ydxd::yd#5 line_ydxd::yd#1 line_ydxd::yd#0 ] zp ZP_BYTE:19 [ line_ydxd::y1#6 line_ydxd::y1#1 line_ydxd::y1#0 ] 
-Uplifting [init_screen] best 15418 combination zp ZP_PTR_BYTE:34 [ init_screen::b#2 init_screen::b#1 ] zp ZP_PTR_BYTE:36 [ init_screen::c#2 init_screen::c#1 ] 
+Uplifting [line_xdyi] best 15765 combination zp ZP_BYTE:16 [ line_xdyi::e#3 line_xdyi::e#0 line_xdyi::e#6 line_xdyi::e#2 line_xdyi::e#1 ] zp ZP_BYTE:15 [ line_xdyi::y#3 line_xdyi::y#5 line_xdyi::y#0 line_xdyi::y#1 line_xdyi::y#6 line_xdyi::y#2 ] zp ZP_BYTE:69 [ line_xdyi::$8 ] reg byte x [ line_xdyi::x#3 line_xdyi::x#6 line_xdyi::x#0 line_xdyi::x#1 line_xdyi::x#2 ] zp ZP_BYTE:11 [ line_xdyi::yd#2 line_xdyi::yd#0 line_xdyi::yd#1 ] zp ZP_BYTE:12 [ line_xdyi::xd#5 line_xdyi::xd#0 line_xdyi::xd#1 ] zp ZP_BYTE:13 [ line_xdyi::x1#6 line_xdyi::x1#0 line_xdyi::x1#1 ] 
+Uplifting [line_xdyd] best 15669 combination zp ZP_BYTE:28 [ line_xdyd::e#3 line_xdyd::e#0 line_xdyd::e#6 line_xdyd::e#2 line_xdyd::e#1 ] zp ZP_BYTE:27 [ line_xdyd::y#3 line_xdyd::y#5 line_xdyd::y#0 line_xdyd::y#1 line_xdyd::y#6 line_xdyd::y#2 ] zp ZP_BYTE:71 [ line_xdyd::$8 ] reg byte x [ line_xdyd::x#3 line_xdyd::x#6 line_xdyd::x#0 line_xdyd::x#1 line_xdyd::x#2 ] zp ZP_BYTE:23 [ line_xdyd::yd#2 line_xdyd::yd#0 line_xdyd::yd#1 ] zp ZP_BYTE:24 [ line_xdyd::xd#5 line_xdyd::xd#0 line_xdyd::xd#1 ] zp ZP_BYTE:25 [ line_xdyd::x1#6 line_xdyd::x1#0 line_xdyd::x1#1 ] 
+Uplifting [line_ydxi] best 15543 combination zp ZP_BYTE:8 [ line_ydxi::e#3 line_ydxi::e#0 line_ydxi::e#6 line_ydxi::e#2 line_ydxi::e#1 ] reg byte x [ line_ydxi::x#3 line_ydxi::x#5 line_ydxi::x#1 line_ydxi::x#0 line_ydxi::x#6 line_ydxi::x#2 ] reg byte a [ line_ydxi::$8 ] zp ZP_BYTE:7 [ line_ydxi::y#3 line_ydxi::y#6 line_ydxi::y#1 line_ydxi::y#0 line_ydxi::y#2 ] zp ZP_BYTE:3 [ line_ydxi::xd#2 line_ydxi::xd#1 line_ydxi::xd#0 ] zp ZP_BYTE:4 [ line_ydxi::yd#5 line_ydxi::yd#1 line_ydxi::yd#0 ] zp ZP_BYTE:5 [ line_ydxi::y1#6 line_ydxi::y1#1 line_ydxi::y1#0 ] 
+Uplifting [line_ydxd] best 15417 combination zp ZP_BYTE:22 [ line_ydxd::e#3 line_ydxd::e#0 line_ydxd::e#6 line_ydxd::e#2 line_ydxd::e#1 ] reg byte x [ line_ydxd::x#3 line_ydxd::x#5 line_ydxd::x#1 line_ydxd::x#0 line_ydxd::x#6 line_ydxd::x#2 ] reg byte a [ line_ydxd::$8 ] zp ZP_BYTE:21 [ line_ydxd::y#3 line_ydxd::y#6 line_ydxd::y#1 line_ydxd::y#0 line_ydxd::y#2 ] zp ZP_BYTE:17 [ line_ydxd::xd#2 line_ydxd::xd#1 line_ydxd::xd#0 ] zp ZP_BYTE:18 [ line_ydxd::yd#5 line_ydxd::yd#1 line_ydxd::yd#0 ] zp ZP_BYTE:19 [ line_ydxd::y1#6 line_ydxd::y1#1 line_ydxd::y1#0 ] 
+Uplifting [init_screen] best 15417 combination zp ZP_PTR_BYTE:34 [ init_screen::b#2 init_screen::b#1 ] zp ZP_PTR_BYTE:36 [ init_screen::c#2 init_screen::c#1 ] 
 Uplift attempts [line] 10000/186624 (limiting to 10000)
-Uplifting [line] best 15098 combination zp ZP_BYTE:45 [ line::y1#0 ] reg byte y [ line::y0#0 ] zp ZP_BYTE:43 [ line::x1#0 ] zp ZP_BYTE:42 [ line::x0#0 ] zp ZP_BYTE:47 [ line::yd#1 ] zp ZP_BYTE:48 [ line::yd#0 ] zp ZP_BYTE:50 [ line::yd#3 ] zp ZP_BYTE:51 [ line::yd#10 ] zp ZP_BYTE:46 [ line::xd#1 ] zp ZP_BYTE:49 [ line::xd#0 ] 
+Uplifting [line] best 15097 combination zp ZP_BYTE:45 [ line::y1#0 ] reg byte y [ line::y0#0 ] zp ZP_BYTE:43 [ line::x1#0 ] zp ZP_BYTE:42 [ line::x0#0 ] zp ZP_BYTE:47 [ line::yd#1 ] zp ZP_BYTE:48 [ line::yd#0 ] zp ZP_BYTE:50 [ line::yd#3 ] zp ZP_BYTE:51 [ line::yd#10 ] zp ZP_BYTE:46 [ line::xd#1 ] zp ZP_BYTE:49 [ line::xd#0 ] 
 Limited combination testing to 10000 combinations of 186624 possible.
-Uplifting [main] best 15098 combination 
-Uplifting [] best 15098 combination 
+Uplifting [main] best 15097 combination 
+Uplifting [] best 15097 combination 
 MISSING FRAGMENTS
-  zpby1=_deref_zpptrby1_bor_aby
-  zpby1=_deref_zpptrby1_bor_xby
-  zpby1=_deref_zpptrby1_bor_yby
   zpby1=_deref_zpptrby1_bor_cowo1_derefidx_yby
 Attempting to uplift remaining variables inzp ZP_BYTE:2 [ lines::l#2 lines::l#1 ]
-Uplifting [lines] best 15098 combination zp ZP_BYTE:2 [ lines::l#2 lines::l#1 ] 
+Uplifting [lines] best 15097 combination zp ZP_BYTE:2 [ lines::l#2 lines::l#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:8 [ line_ydxi::e#3 line_ydxi::e#0 line_ydxi::e#6 line_ydxi::e#2 line_ydxi::e#1 ]
-Uplifting [line_ydxi] best 15098 combination zp ZP_BYTE:8 [ line_ydxi::e#3 line_ydxi::e#0 line_ydxi::e#6 line_ydxi::e#2 line_ydxi::e#1 ] 
+Uplifting [line_ydxi] best 15097 combination zp ZP_BYTE:8 [ line_ydxi::e#3 line_ydxi::e#0 line_ydxi::e#6 line_ydxi::e#2 line_ydxi::e#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:16 [ line_xdyi::e#3 line_xdyi::e#0 line_xdyi::e#6 line_xdyi::e#2 line_xdyi::e#1 ]
-Uplifting [line_xdyi] best 15098 combination zp ZP_BYTE:16 [ line_xdyi::e#3 line_xdyi::e#0 line_xdyi::e#6 line_xdyi::e#2 line_xdyi::e#1 ] 
+Uplifting [line_xdyi] best 15097 combination zp ZP_BYTE:16 [ line_xdyi::e#3 line_xdyi::e#0 line_xdyi::e#6 line_xdyi::e#2 line_xdyi::e#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:22 [ line_ydxd::e#3 line_ydxd::e#0 line_ydxd::e#6 line_ydxd::e#2 line_ydxd::e#1 ]
-Uplifting [line_ydxd] best 15098 combination zp ZP_BYTE:22 [ line_ydxd::e#3 line_ydxd::e#0 line_ydxd::e#6 line_ydxd::e#2 line_ydxd::e#1 ] 
+Uplifting [line_ydxd] best 15097 combination zp ZP_BYTE:22 [ line_ydxd::e#3 line_ydxd::e#0 line_ydxd::e#6 line_ydxd::e#2 line_ydxd::e#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:28 [ line_xdyd::e#3 line_xdyd::e#0 line_xdyd::e#6 line_xdyd::e#2 line_xdyd::e#1 ]
-Uplifting [line_xdyd] best 15098 combination zp ZP_BYTE:28 [ line_xdyd::e#3 line_xdyd::e#0 line_xdyd::e#6 line_xdyd::e#2 line_xdyd::e#1 ] 
+Uplifting [line_xdyd] best 15097 combination zp ZP_BYTE:28 [ line_xdyd::e#3 line_xdyd::e#0 line_xdyd::e#6 line_xdyd::e#2 line_xdyd::e#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:39 [ lines::$2 ]
-Uplifting [lines] best 15098 combination zp ZP_BYTE:39 [ lines::$2 ] 
+Uplifting [lines] best 15097 combination zp ZP_BYTE:39 [ lines::$2 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:40 [ lines::$3 ]
-Uplifting [lines] best 15098 combination zp ZP_BYTE:40 [ lines::$3 ] 
+Uplifting [lines] best 15097 combination zp ZP_BYTE:40 [ lines::$3 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:15 [ line_xdyi::y#3 line_xdyi::y#5 line_xdyi::y#0 line_xdyi::y#1 line_xdyi::y#6 line_xdyi::y#2 ]
-Uplifting [line_xdyi] best 15098 combination zp ZP_BYTE:15 [ line_xdyi::y#3 line_xdyi::y#5 line_xdyi::y#0 line_xdyi::y#1 line_xdyi::y#6 line_xdyi::y#2 ] 
+Uplifting [line_xdyi] best 15097 combination zp ZP_BYTE:15 [ line_xdyi::y#3 line_xdyi::y#5 line_xdyi::y#0 line_xdyi::y#1 line_xdyi::y#6 line_xdyi::y#2 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:27 [ line_xdyd::y#3 line_xdyd::y#5 line_xdyd::y#0 line_xdyd::y#1 line_xdyd::y#6 line_xdyd::y#2 ]
-Uplifting [line_xdyd] best 15098 combination zp ZP_BYTE:27 [ line_xdyd::y#3 line_xdyd::y#5 line_xdyd::y#0 line_xdyd::y#1 line_xdyd::y#6 line_xdyd::y#2 ] 
+Uplifting [line_xdyd] best 15097 combination zp ZP_BYTE:27 [ line_xdyd::y#3 line_xdyd::y#5 line_xdyd::y#0 line_xdyd::y#1 line_xdyd::y#6 line_xdyd::y#2 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:69 [ line_xdyi::$8 ]
-Uplifting [line_xdyi] best 15098 combination zp ZP_BYTE:69 [ line_xdyi::$8 ] 
+Uplifting [line_xdyi] best 15097 combination zp ZP_BYTE:69 [ line_xdyi::$8 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:71 [ line_xdyd::$8 ]
-Uplifting [line_xdyd] best 15098 combination zp ZP_BYTE:71 [ line_xdyd::$8 ] 
+Uplifting [line_xdyd] best 15097 combination zp ZP_BYTE:71 [ line_xdyd::$8 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:77 [ init_plot_tables::$10 ]
-Uplifting [init_plot_tables] best 15038 combination reg byte a [ init_plot_tables::$10 ] 
+Uplifting [init_plot_tables] best 15037 combination reg byte a [ init_plot_tables::$10 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:7 [ line_ydxi::y#3 line_ydxi::y#6 line_ydxi::y#1 line_ydxi::y#0 line_ydxi::y#2 ]
-Uplifting [line_ydxi] best 15038 combination zp ZP_BYTE:7 [ line_ydxi::y#3 line_ydxi::y#6 line_ydxi::y#1 line_ydxi::y#0 line_ydxi::y#2 ] 
+Uplifting [line_ydxi] best 15037 combination zp ZP_BYTE:7 [ line_ydxi::y#3 line_ydxi::y#6 line_ydxi::y#1 line_ydxi::y#0 line_ydxi::y#2 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:21 [ line_ydxd::y#3 line_ydxd::y#6 line_ydxd::y#1 line_ydxd::y#0 line_ydxd::y#2 ]
-Uplifting [line_ydxd] best 15038 combination zp ZP_BYTE:21 [ line_ydxd::y#3 line_ydxd::y#6 line_ydxd::y#1 line_ydxd::y#0 line_ydxd::y#2 ] 
+Uplifting [line_ydxd] best 15037 combination zp ZP_BYTE:21 [ line_ydxd::y#3 line_ydxd::y#6 line_ydxd::y#1 line_ydxd::y#0 line_ydxd::y#2 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:73 [ init_plot_tables::$6 ]
-Uplifting [init_plot_tables] best 15038 combination zp ZP_BYTE:73 [ init_plot_tables::$6 ] 
+Uplifting [init_plot_tables] best 15037 combination zp ZP_BYTE:73 [ init_plot_tables::$6 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:3 [ line_ydxi::xd#2 line_ydxi::xd#1 line_ydxi::xd#0 ]
-Uplifting [line_ydxi] best 15038 combination zp ZP_BYTE:3 [ line_ydxi::xd#2 line_ydxi::xd#1 line_ydxi::xd#0 ] 
+Uplifting [line_ydxi] best 15037 combination zp ZP_BYTE:3 [ line_ydxi::xd#2 line_ydxi::xd#1 line_ydxi::xd#0 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:11 [ line_xdyi::yd#2 line_xdyi::yd#0 line_xdyi::yd#1 ]
-Uplifting [line_xdyi] best 15038 combination zp ZP_BYTE:11 [ line_xdyi::yd#2 line_xdyi::yd#0 line_xdyi::yd#1 ] 
+Uplifting [line_xdyi] best 15037 combination zp ZP_BYTE:11 [ line_xdyi::yd#2 line_xdyi::yd#0 line_xdyi::yd#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:17 [ line_ydxd::xd#2 line_ydxd::xd#1 line_ydxd::xd#0 ]
-Uplifting [line_ydxd] best 15038 combination zp ZP_BYTE:17 [ line_ydxd::xd#2 line_ydxd::xd#1 line_ydxd::xd#0 ] 
+Uplifting [line_ydxd] best 15037 combination zp ZP_BYTE:17 [ line_ydxd::xd#2 line_ydxd::xd#1 line_ydxd::xd#0 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:23 [ line_xdyd::yd#2 line_xdyd::yd#0 line_xdyd::yd#1 ]
-Uplifting [line_xdyd] best 15038 combination zp ZP_BYTE:23 [ line_xdyd::yd#2 line_xdyd::yd#0 line_xdyd::yd#1 ] 
+Uplifting [line_xdyd] best 15037 combination zp ZP_BYTE:23 [ line_xdyd::yd#2 line_xdyd::yd#0 line_xdyd::yd#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:45 [ line::y1#0 ]
-Uplifting [line] best 15038 combination zp ZP_BYTE:45 [ line::y1#0 ] 
+Uplifting [line] best 15037 combination zp ZP_BYTE:45 [ line::y1#0 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:4 [ line_ydxi::yd#5 line_ydxi::yd#1 line_ydxi::yd#0 ]
-Uplifting [line_ydxi] best 15038 combination zp ZP_BYTE:4 [ line_ydxi::yd#5 line_ydxi::yd#1 line_ydxi::yd#0 ] 
+Uplifting [line_ydxi] best 15037 combination zp ZP_BYTE:4 [ line_ydxi::yd#5 line_ydxi::yd#1 line_ydxi::yd#0 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:12 [ line_xdyi::xd#5 line_xdyi::xd#0 line_xdyi::xd#1 ]
-Uplifting [line_xdyi] best 15038 combination zp ZP_BYTE:12 [ line_xdyi::xd#5 line_xdyi::xd#0 line_xdyi::xd#1 ] 
+Uplifting [line_xdyi] best 15037 combination zp ZP_BYTE:12 [ line_xdyi::xd#5 line_xdyi::xd#0 line_xdyi::xd#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:18 [ line_ydxd::yd#5 line_ydxd::yd#1 line_ydxd::yd#0 ]
-Uplifting [line_ydxd] best 15038 combination zp ZP_BYTE:18 [ line_ydxd::yd#5 line_ydxd::yd#1 line_ydxd::yd#0 ] 
+Uplifting [line_ydxd] best 15037 combination zp ZP_BYTE:18 [ line_ydxd::yd#5 line_ydxd::yd#1 line_ydxd::yd#0 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:24 [ line_xdyd::xd#5 line_xdyd::xd#0 line_xdyd::xd#1 ]
-Uplifting [line_xdyd] best 15038 combination zp ZP_BYTE:24 [ line_xdyd::xd#5 line_xdyd::xd#0 line_xdyd::xd#1 ] 
+Uplifting [line_xdyd] best 15037 combination zp ZP_BYTE:24 [ line_xdyd::xd#5 line_xdyd::xd#0 line_xdyd::xd#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:43 [ line::x1#0 ]
-Uplifting [line] best 15038 combination zp ZP_BYTE:43 [ line::x1#0 ] 
+Uplifting [line] best 15037 combination zp ZP_BYTE:43 [ line::x1#0 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:42 [ line::x0#0 ]
-Uplifting [line] best 15038 combination zp ZP_BYTE:42 [ line::x0#0 ] 
+Uplifting [line] best 15037 combination zp ZP_BYTE:42 [ line::x0#0 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:68 [ plot::$6 ]
-Uplifting [plot] best 15032 combination reg byte a [ plot::$6 ] 
+Uplifting [plot] best 15031 combination reg byte a [ plot::$6 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:5 [ line_ydxi::y1#6 line_ydxi::y1#1 line_ydxi::y1#0 ]
-Uplifting [line_ydxi] best 15032 combination zp ZP_BYTE:5 [ line_ydxi::y1#6 line_ydxi::y1#1 line_ydxi::y1#0 ] 
+Uplifting [line_ydxi] best 15031 combination zp ZP_BYTE:5 [ line_ydxi::y1#6 line_ydxi::y1#1 line_ydxi::y1#0 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:13 [ line_xdyi::x1#6 line_xdyi::x1#0 line_xdyi::x1#1 ]
-Uplifting [line_xdyi] best 15032 combination zp ZP_BYTE:13 [ line_xdyi::x1#6 line_xdyi::x1#0 line_xdyi::x1#1 ] 
+Uplifting [line_xdyi] best 15031 combination zp ZP_BYTE:13 [ line_xdyi::x1#6 line_xdyi::x1#0 line_xdyi::x1#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:19 [ line_ydxd::y1#6 line_ydxd::y1#1 line_ydxd::y1#0 ]
-Uplifting [line_ydxd] best 15032 combination zp ZP_BYTE:19 [ line_ydxd::y1#6 line_ydxd::y1#1 line_ydxd::y1#0 ] 
+Uplifting [line_ydxd] best 15031 combination zp ZP_BYTE:19 [ line_ydxd::y1#6 line_ydxd::y1#1 line_ydxd::y1#0 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:25 [ line_xdyd::x1#6 line_xdyd::x1#0 line_xdyd::x1#1 ]
-Uplifting [line_xdyd] best 15032 combination zp ZP_BYTE:25 [ line_xdyd::x1#6 line_xdyd::x1#0 line_xdyd::x1#1 ] 
+Uplifting [line_xdyd] best 15031 combination zp ZP_BYTE:25 [ line_xdyd::x1#6 line_xdyd::x1#0 line_xdyd::x1#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:47 [ line::yd#1 ]
-Uplifting [line] best 15032 combination zp ZP_BYTE:47 [ line::yd#1 ] 
+Uplifting [line] best 15031 combination zp ZP_BYTE:47 [ line::yd#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:48 [ line::yd#0 ]
-Uplifting [line] best 15032 combination zp ZP_BYTE:48 [ line::yd#0 ] 
+Uplifting [line] best 15031 combination zp ZP_BYTE:48 [ line::yd#0 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:50 [ line::yd#3 ]
-Uplifting [line] best 15032 combination zp ZP_BYTE:50 [ line::yd#3 ] 
+Uplifting [line] best 15031 combination zp ZP_BYTE:50 [ line::yd#3 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:51 [ line::yd#10 ]
-Uplifting [line] best 15032 combination zp ZP_BYTE:51 [ line::yd#10 ] 
+Uplifting [line] best 15031 combination zp ZP_BYTE:51 [ line::yd#10 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:46 [ line::xd#1 ]
-Uplifting [line] best 15032 combination zp ZP_BYTE:46 [ line::xd#1 ] 
+Uplifting [line] best 15031 combination zp ZP_BYTE:46 [ line::xd#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:49 [ line::xd#0 ]
-Uplifting [line] best 15032 combination zp ZP_BYTE:49 [ line::xd#0 ] 
+Uplifting [line] best 15031 combination zp ZP_BYTE:49 [ line::xd#0 ] 
 Coalescing zero page register [ zp ZP_BYTE:2 [ lines::l#2 lines::l#1 ] ] with [ zp ZP_BYTE:73 [ init_plot_tables::$6 ] ]
 Coalescing zero page register [ zp ZP_BYTE:3 [ line_ydxi::xd#2 line_ydxi::xd#1 line_ydxi::xd#0 ] ] with [ zp ZP_BYTE:11 [ line_xdyi::yd#2 line_xdyi::yd#0 line_xdyi::yd#1 ] ]
 Coalescing zero page register [ zp ZP_BYTE:3 [ line_ydxi::xd#2 line_ydxi::xd#1 line_ydxi::xd#0 line_xdyi::yd#2 line_xdyi::yd#0 line_xdyi::yd#1 ] ] with [ zp ZP_BYTE:17 [ line_ydxd::xd#2 line_ydxd::xd#1 line_ydxd::xd#0 ] ]
@@ -17929,12 +17875,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] )
-    // [111] plot::$5 ← plot_bit#0 *idx plot::x#4  //  ALU
-  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_cowo1_derefidx_xby 
+  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_xby 
+    lda plot_bit,x
+  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora plot_bit,x
+    ora (plotter),y
   //SEG209 [113] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] ) -- _deref_zpptrby1=aby 
     ldy #0
     sta (plotter),y
@@ -18860,12 +18805,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] )
-    // [111] plot::$5 ← plot_bit#0 *idx plot::x#4  //  ALU
-  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_cowo1_derefidx_xby 
+  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_xby 
+    lda plot_bit,x
+  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora plot_bit,x
+    ora (plotter),y
   //SEG209 [113] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] ) -- _deref_zpptrby1=aby 
     sta (plotter),y
   //SEG210 plot::@return
@@ -19815,12 +19759,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] )
-    // [111] plot::$5 ← plot_bit#0 *idx plot::x#4  //  ALU
-  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_cowo1_derefidx_xby 
+  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_xby 
+    lda plot_bit,x
+  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora plot_bit,x
+    ora (plotter),y
   //SEG209 [113] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] ) -- _deref_zpptrby1=aby 
     sta (plotter),y
   //SEG210 plot::@return
@@ -20729,12 +20672,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] )
-    // [111] plot::$5 ← plot_bit#0 *idx plot::x#4  //  ALU
-  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_cowo1_derefidx_xby 
+  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_xby 
+    lda plot_bit,x
+  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora plot_bit,x
+    ora (plotter),y
   //SEG209 [113] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] ) -- _deref_zpptrby1=aby 
     sta (plotter),y
   //SEG210 plot::@return
@@ -21577,12 +21519,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] )
-    // [111] plot::$5 ← plot_bit#0 *idx plot::x#4  //  ALU
-  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_cowo1_derefidx_xby 
+  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_xby 
+    lda plot_bit,x
+  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora plot_bit,x
+    ora (plotter),y
   //SEG209 [113] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] ) -- _deref_zpptrby1=aby 
     sta (plotter),y
   //SEG210 plot::@return
@@ -22226,7 +22167,7 @@ FINAL SYMBOL TABLE
 (byte~) plot::$1 reg byte a 4.0
 (byte~) plot::$2 reg byte a 4.0
 (byte~) plot::$3 reg byte a 4.0
-(byte~) plot::$5 reg byte alu 4.0
+(byte~) plot::$5 reg byte a 4.0
 (byte~) plot::$6 reg byte a 4.0
 (label) plot::@return
 (byte*) plot::plotter
@@ -22286,7 +22227,7 @@ reg byte a [ plot::$1 ]
 reg byte a [ plot::$2 ]
 zp ZP_PTR_BYTE:11 [ plot::plotter_y#1 plot::plotter_y#2 ]
 reg byte a [ plot::$3 ]
-reg byte alu [ plot::$5 ]
+reg byte a [ plot::$5 ]
 reg byte a [ plot::$6 ]
 reg byte a [ line_ydxd::$8 ]
 reg byte a [ init_plot_tables::$0 ]
@@ -22769,12 +22710,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] )
-    // [111] plot::$5 ← plot_bit#0 *idx plot::x#4  //  ALU
-  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_cowo1_derefidx_xby 
+  //SEG207 [111] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#4 [ plot::plotter#0 plot::$5 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_xby 
+    lda plot_bit,x
+  //SEG208 [112] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora plot_bit,x
+    ora (plotter),y
   //SEG209 [113] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::lines:7::line:20::line_ydxi:41::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_ydxi:85::plot:91 [ lines::l#2 line_ydxi::xd#2 line_ydxi::yd#5 line_ydxi::y1#6 line_ydxi::x#3 line_ydxi::y#3 line_ydxi::e#3 ] main:0::lines:7::line:20::line_xdyi:34::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_xdyi:79::plot:120 [ lines::l#2 line_xdyi::yd#2 line_xdyi::xd#5 line_xdyi::x1#6 line_xdyi::x#3 line_xdyi::y#3 line_xdyi::e#3 ] main:0::lines:7::line:20::line_ydxd:55::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_ydxd:71::plot:135 [ lines::l#2 line_ydxd::xd#2 line_ydxd::yd#5 line_ydxd::y1#6 line_ydxd::x#3 line_ydxd::y#3 line_ydxd::e#3 ] main:0::lines:7::line:20::line_xdyd:49::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] main:0::lines:7::line:20::line_xdyd:65::plot:150 [ lines::l#2 line_xdyd::yd#2 line_xdyd::xd#5 line_xdyd::x1#6 line_xdyd::x#3 line_xdyd::y#3 line_xdyd::e#3 ] ) -- _deref_zpptrby1=aby 
     sta (plotter),y
   //SEG210 plot::@return
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.sym b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.sym
index a9ae824c1..a94d1e4b1 100644
--- a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.sym
+++ b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-bresenham.sym
@@ -282,7 +282,7 @@
 (byte~) plot::$1 reg byte a 4.0
 (byte~) plot::$2 reg byte a 4.0
 (byte~) plot::$3 reg byte a 4.0
-(byte~) plot::$5 reg byte alu 4.0
+(byte~) plot::$5 reg byte a 4.0
 (byte~) plot::$6 reg byte a 4.0
 (label) plot::@return
 (byte*) plot::plotter
@@ -342,7 +342,7 @@ reg byte a [ plot::$1 ]
 reg byte a [ plot::$2 ]
 zp ZP_PTR_BYTE:11 [ plot::plotter_y#1 plot::plotter_y#2 ]
 reg byte a [ plot::$3 ]
-reg byte alu [ plot::$5 ]
+reg byte a [ plot::$5 ]
 reg byte a [ plot::$6 ]
 reg byte a [ line_ydxd::$8 ]
 reg byte a [ init_plot_tables::$0 ]
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.asm b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.asm
index 806ecc276..2098d96a1 100644
--- a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.asm
+++ b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.asm
@@ -65,7 +65,6 @@ plots: {
     rts
 }
 plot: {
-    .label _5 = 7
     .label plotter_x = 3
     .label plotter_y = 5
     .label plotter = 3
@@ -89,10 +88,8 @@ plot: {
     adc plotter_y+1
     sta plotter+1
     lda plot_bit,y
-    sta _5
     ldy #0
-    lda (plotter),y
-    ora _5
+    ora (plotter),y
     sta (plotter),y
     rts
 }
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.log b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.log
index f843e70d3..917e3259c 100644
--- a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.log
+++ b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.log
@@ -6180,8 +6180,7 @@ init_plot_tables: {
     ldx x
     sta plot_bit,x
   //SEG70 [42] (byte) init_plot_tables::bits#1 ← (byte) init_plot_tables::bits#3 >> (byte) 1 [ init_plot_tables::x#2 init_plot_tables::bits#1 ] ( main:0::init_plot_tables:6 [ init_plot_tables::x#2 init_plot_tables::bits#1 ] ) -- zpby1=zpby1_ror_1 
-    lsr
-    sta bits
+    lsr bits
   //SEG71 [43] if((byte) init_plot_tables::bits#1!=(byte) 0) goto init_plot_tables::@10 [ init_plot_tables::x#2 ] ( main:0::init_plot_tables:6 [ init_plot_tables::x#2 ] ) -- zpby1_neq_0_then_la1 
     lda bits
     bne b10
@@ -6366,31 +6365,6 @@ Removing always clobbered register reg byte a as potential for zp ZP_BYTE:14 [ p
 Removing always clobbered register reg byte a as potential for zp ZP_BYTE:15 [ plot::y#0 ]
 Statement [30] (byte*) plot::plotter_y#2 ← (byte*) plot::plotter_y#1 lo= (byte~) plot::$3 [ plot::x#0 plot::plotter_x#2 plot::plotter_y#2 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::x#0 plot::plotter_x#2 plot::plotter_y#2 ] ) always clobbers reg byte a 
 Statement [31] (byte*) plot::plotter#0 ← (byte*) plot::plotter_x#2 + (byte*) plot::plotter_y#2 [ plot::x#0 plot::plotter#0 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::x#0 plot::plotter#0 ] ) always clobbers reg byte a 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte a [ plot::$5 ] zp ZP_BYTE:31 [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte x [ plot::$5 ] zp ZP_BYTE:31 [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte y [ plot::$5 ] zp ZP_BYTE:31 [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte y [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte y [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte y [ plot::$6 ] 
-MISSING FRAGMENTS
-  zpby1=_deref_zpptrby1_bor_aby
-  zpby1=_deref_zpptrby1_bor_xby
-  zpby1=_deref_zpptrby1_bor_yby
-  aby=_deref_zpptrby1_bor_aby
-  aby=_deref_zpptrby1_bor_xby
-  aby=_deref_zpptrby1_bor_yby
-  xby=_deref_zpptrby1_bor_aby
-  xby=_deref_zpptrby1_bor_xby
-  xby=_deref_zpptrby1_bor_yby
-  yby=_deref_zpptrby1_bor_aby
-  yby=_deref_zpptrby1_bor_xby
-  yby=_deref_zpptrby1_bor_yby
 Statement [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) always clobbers reg byte a reg byte y 
 Removing always clobbered register reg byte y as potential for zp ZP_BYTE:2 [ plots::i#2 plots::i#1 ]
 Statement [34] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::plots:9::plot:19 [ plots::i#2 ] ) always clobbers reg byte y 
@@ -6416,31 +6390,6 @@ Statement [7] if(*((const byte*) RASTER#0)!=(byte) 255) goto main::@2 [ ] ( main
 Statement [26] (byte*) plot::plotter_x#2 ← (byte*) plot::plotter_x#1 lo= (byte~) plot::$1 [ plot::x#0 plot::y#0 plot::plotter_x#2 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::x#0 plot::y#0 plot::plotter_x#2 ] ) always clobbers reg byte a 
 Statement [30] (byte*) plot::plotter_y#2 ← (byte*) plot::plotter_y#1 lo= (byte~) plot::$3 [ plot::x#0 plot::plotter_x#2 plot::plotter_y#2 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::x#0 plot::plotter_x#2 plot::plotter_y#2 ] ) always clobbers reg byte a 
 Statement [31] (byte*) plot::plotter#0 ← (byte*) plot::plotter_x#2 + (byte*) plot::plotter_y#2 [ plot::x#0 plot::plotter#0 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::x#0 plot::plotter#0 ] ) always clobbers reg byte a 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte a [ plot::$5 ] zp ZP_BYTE:31 [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte x [ plot::$5 ] zp ZP_BYTE:31 [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment zpby1=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte y [ plot::$5 ] zp ZP_BYTE:31 [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment aby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte a [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment xby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte x [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_aby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte a [ plot::$5 ] reg byte y [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_xby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte x [ plot::$5 ] reg byte y [ plot::$6 ] 
-Potential register analysis [33] plot::$6 ← *(plot::plotter#0) | plot::$5 missing fragment yby=_deref_zpptrby1_bor_yby allocation: zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] reg byte y [ plot::$5 ] reg byte y [ plot::$6 ] 
-MISSING FRAGMENTS
-  zpby1=_deref_zpptrby1_bor_aby
-  zpby1=_deref_zpptrby1_bor_xby
-  zpby1=_deref_zpptrby1_bor_yby
-  aby=_deref_zpptrby1_bor_aby
-  aby=_deref_zpptrby1_bor_xby
-  aby=_deref_zpptrby1_bor_yby
-  xby=_deref_zpptrby1_bor_aby
-  xby=_deref_zpptrby1_bor_xby
-  xby=_deref_zpptrby1_bor_yby
-  yby=_deref_zpptrby1_bor_aby
-  yby=_deref_zpptrby1_bor_xby
-  yby=_deref_zpptrby1_bor_yby
 Statement [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) always clobbers reg byte a reg byte y 
 Statement [34] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::plots:9::plot:19 [ plots::i#2 ] ) always clobbers reg byte y 
 Statement [38] (byte~) init_plot_tables::$0 ← (byte) init_plot_tables::x#2 & (byte) 248 [ init_plot_tables::x#2 init_plot_tables::bits#3 init_plot_tables::$0 ] ( main:0::init_plot_tables:6 [ init_plot_tables::x#2 init_plot_tables::bits#3 init_plot_tables::$0 ] ) always clobbers reg byte a 
@@ -6497,30 +6446,20 @@ Uplifting [init_plot_tables] best 10043 combination reg byte y [ init_plot_table
 Limited combination testing to 10000 combinations of 138240 possible.
 Uplifting [init_screen] best 10043 combination zp ZP_PTR_BYTE:8 [ init_screen::b#2 init_screen::b#1 ] zp ZP_PTR_BYTE:10 [ init_screen::c#2 init_screen::c#1 ] 
 Uplift attempts [plot] 10000/46080 (limiting to 10000)
-Uplifting [plot] best 9604 combination reg byte x [ plot::y#0 ] reg byte y [ plot::x#0 ] reg byte a [ plot::$0 ] reg byte a [ plot::$1 ] reg byte a [ plot::$2 ] reg byte a [ plot::$3 ] zp ZP_PTR_BYTE:26 [ plot::plotter_y#2 ] zp ZP_BYTE:30 [ plot::$5 ] zp ZP_BYTE:31 [ plot::$6 ] zp ZP_PTR_BYTE:17 [ plot::plotter_x#1 ] zp ZP_PTR_BYTE:23 [ plot::plotter_y#1 ] zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] zp ZP_PTR_BYTE:20 [ plot::plotter_x#2 ] 
+Uplifting [plot] best 9598 combination reg byte x [ plot::y#0 ] reg byte y [ plot::x#0 ] reg byte a [ plot::$0 ] reg byte a [ plot::$1 ] reg byte a [ plot::$2 ] reg byte a [ plot::$3 ] zp ZP_PTR_BYTE:26 [ plot::plotter_y#2 ] reg byte a [ plot::$5 ] zp ZP_BYTE:31 [ plot::$6 ] zp ZP_PTR_BYTE:17 [ plot::plotter_x#1 ] zp ZP_PTR_BYTE:23 [ plot::plotter_y#1 ] zp ZP_PTR_BYTE:28 [ plot::plotter#0 ] zp ZP_PTR_BYTE:20 [ plot::plotter_x#2 ] 
 Limited combination testing to 10000 combinations of 46080 possible.
-Uplifting [main] best 9604 combination 
-Uplifting [] best 9604 combination 
+Uplifting [main] best 9598 combination 
+Uplifting [] best 9598 combination 
 MISSING FRAGMENTS
-  zpby1=_deref_zpptrby1_bor_aby
-  zpby1=_deref_zpptrby1_bor_xby
-  zpby1=_deref_zpptrby1_bor_yby
   zpby1=_deref_zpptrby1_bor_cowo1_derefidx_yby
 Attempting to uplift remaining variables inzp ZP_BYTE:2 [ plots::i#2 plots::i#1 ]
-Uplifting [plots] best 9604 combination zp ZP_BYTE:2 [ plots::i#2 plots::i#1 ] 
+Uplifting [plots] best 9598 combination zp ZP_BYTE:2 [ plots::i#2 plots::i#1 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:37 [ init_plot_tables::$10 ]
-Uplifting [init_plot_tables] best 9544 combination reg byte a [ init_plot_tables::$10 ] 
+Uplifting [init_plot_tables] best 9538 combination reg byte a [ init_plot_tables::$10 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:33 [ init_plot_tables::$6 ]
-Uplifting [init_plot_tables] best 9544 combination zp ZP_BYTE:33 [ init_plot_tables::$6 ] 
-Attempting to uplift remaining variables inzp ZP_BYTE:30 [ plot::$5 ]
-Uplifting [plot] best 9544 combination zp ZP_BYTE:30 [ plot::$5 ] 
+Uplifting [init_plot_tables] best 9538 combination zp ZP_BYTE:33 [ init_plot_tables::$6 ] 
 Attempting to uplift remaining variables inzp ZP_BYTE:31 [ plot::$6 ]
-Uplifting [plot] best 9538 combination reg byte a [ plot::$6 ] 
-MISSING FRAGMENTS
-  zpby1=_deref_zpptrby1_bor_aby
-  zpby1=_deref_zpptrby1_bor_xby
-  zpby1=_deref_zpptrby1_bor_yby
-  zpby1=_deref_zpptrby1_bor_cowo1_derefidx_yby
+Uplifting [plot] best 9532 combination reg byte a [ plot::$6 ] 
 Coalescing zero page register [ zp ZP_BYTE:2 [ plots::i#2 plots::i#1 ] ] with [ zp ZP_BYTE:33 [ init_plot_tables::$6 ] ]
 Coalescing zero page register [ zp ZP_PTR_BYTE:6 [ init_plot_tables::yoffs#2 init_plot_tables::yoffs#4 init_plot_tables::yoffs#1 ] ] with [ zp ZP_PTR_BYTE:8 [ init_screen::b#2 init_screen::b#1 ] ]
 Coalescing zero page register [ zp ZP_PTR_BYTE:6 [ init_plot_tables::yoffs#2 init_plot_tables::yoffs#4 init_plot_tables::yoffs#1 init_screen::b#2 init_screen::b#1 ] ] with [ zp ZP_PTR_BYTE:10 [ init_screen::c#2 init_screen::c#1 ] ]
@@ -6530,7 +6469,6 @@ Coalescing zero page register [ zp ZP_PTR_BYTE:6 [ init_plot_tables::yoffs#2 ini
 Coalescing zero page register [ zp ZP_PTR_BYTE:23 [ plot::plotter_y#1 ] ] with [ zp ZP_PTR_BYTE:26 [ plot::plotter_y#2 ] ]
 Allocated (was zp ZP_PTR_BYTE:6) zp ZP_PTR_BYTE:3 [ init_plot_tables::yoffs#2 init_plot_tables::yoffs#4 init_plot_tables::yoffs#1 init_screen::b#2 init_screen::b#1 init_screen::c#2 init_screen::c#1 plot::plotter_x#1 plot::plotter_x#2 plot::plotter#0 ]
 Allocated (was zp ZP_PTR_BYTE:23) zp ZP_PTR_BYTE:5 [ plot::plotter_y#1 plot::plotter_y#2 ]
-Allocated (was zp ZP_BYTE:30) zp ZP_BYTE:7 [ plot::$5 ]
 Removing instruction jmp b5
 Removing instruction jmp bend
 Removing instruction jmp b5
@@ -6681,7 +6619,6 @@ plots: {
 }
 //SEG43 plot
 plot: {
-    .label _5 = 7
     .label plotter_x = 3
     .label plotter_y = 5
     .label plotter = 3
@@ -6713,13 +6650,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- zpby1=cowo1_derefidx_yby 
+  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_yby 
     lda plot_bit,y
-    sta _5
-  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_zpby1 
+  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora _5
+    ora (plotter),y
   //SEG55 [34] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::plots:9::plot:19 [ plots::i#2 ] ) -- _deref_zpptrby1=aby 
     ldy #0
     sta (plotter),y
@@ -7044,7 +6979,6 @@ plots: {
 }
 //SEG43 plot
 plot: {
-    .label _5 = 7
     .label plotter_x = 3
     .label plotter_y = 5
     .label plotter = 3
@@ -7076,13 +7010,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- zpby1=cowo1_derefidx_yby 
+  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_yby 
     lda plot_bit,y
-    sta _5
-  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_zpby1 
+  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora _5
+    ora (plotter),y
   //SEG55 [34] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::plots:9::plot:19 [ plots::i#2 ] ) -- _deref_zpptrby1=aby 
     sta (plotter),y
   //SEG56 plot::@return
@@ -7415,7 +7347,6 @@ plots: {
 }
 //SEG43 plot
 plot: {
-    .label _5 = 7
     .label plotter_x = 3
     .label plotter_y = 5
     .label plotter = 3
@@ -7447,13 +7378,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- zpby1=cowo1_derefidx_yby 
+  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_yby 
     lda plot_bit,y
-    sta _5
-  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_zpby1 
+  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora _5
+    ora (plotter),y
   //SEG55 [34] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::plots:9::plot:19 [ plots::i#2 ] ) -- _deref_zpptrby1=aby 
     sta (plotter),y
   //SEG56 plot::@return
@@ -7770,7 +7699,6 @@ plots: {
 }
 //SEG43 plot
 plot: {
-    .label _5 = 7
     .label plotter_x = 3
     .label plotter_y = 5
     .label plotter = 3
@@ -7802,13 +7730,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- zpby1=cowo1_derefidx_yby 
+  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_yby 
     lda plot_bit,y
-    sta _5
-  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_zpby1 
+  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora _5
+    ora (plotter),y
   //SEG55 [34] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::plots:9::plot:19 [ plots::i#2 ] ) -- _deref_zpptrby1=aby 
     sta (plotter),y
   //SEG56 plot::@return
@@ -8100,7 +8026,6 @@ plots: {
 }
 //SEG43 plot
 plot: {
-    .label _5 = 7
     .label plotter_x = 3
     .label plotter_y = 5
     .label plotter = 3
@@ -8132,13 +8057,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- zpby1=cowo1_derefidx_yby 
+  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_yby 
     lda plot_bit,y
-    sta _5
-  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_zpby1 
+  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora _5
+    ora (plotter),y
   //SEG55 [34] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::plots:9::plot:19 [ plots::i#2 ] ) -- _deref_zpptrby1=aby 
     sta (plotter),y
   //SEG56 plot::@return
@@ -8392,7 +8315,7 @@ FINAL SYMBOL TABLE
 (byte~) plot::$1 reg byte a 4.0
 (byte~) plot::$2 reg byte a 4.0
 (byte~) plot::$3 reg byte a 4.0
-(byte~) plot::$5 $5 zp ZP_BYTE:7 4.0
+(byte~) plot::$5 reg byte a 4.0
 (byte~) plot::$6 reg byte a 4.0
 (label) plot::@return
 (byte*) plot::plotter
@@ -8447,7 +8370,7 @@ reg byte a [ plot::$1 ]
 reg byte a [ plot::$2 ]
 zp ZP_PTR_BYTE:5 [ plot::plotter_y#1 plot::plotter_y#2 ]
 reg byte a [ plot::$3 ]
-zp ZP_BYTE:7 [ plot::$5 ]
+reg byte a [ plot::$5 ]
 reg byte a [ plot::$6 ]
 reg byte a [ init_plot_tables::$0 ]
 reg byte a [ init_plot_tables::$7 ]
@@ -8568,7 +8491,6 @@ plots: {
 }
 //SEG43 plot
 plot: {
-    .label _5 = 7
     .label plotter_x = 3
     .label plotter_y = 5
     .label plotter = 3
@@ -8600,13 +8522,11 @@ plot: {
     lda plotter+1
     adc plotter_y+1
     sta plotter+1
-  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- zpby1=cowo1_derefidx_yby 
+  //SEG53 [32] (byte~) plot::$5 ← (const byte[]) plot_bit#0 *idx (byte) plot::x#0 [ plot::plotter#0 plot::$5 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$5 ] ) -- aby=cowo1_derefidx_yby 
     lda plot_bit,y
-    sta _5
-  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_zpby1 
+  //SEG54 [33] (byte~) plot::$6 ← *((byte*) plot::plotter#0) | (byte~) plot::$5 [ plot::plotter#0 plot::$6 ] ( main:0::plots:9::plot:19 [ plots::i#2 plot::plotter#0 plot::$6 ] ) -- aby=_deref_zpptrby1_bor_aby 
     ldy #0
-    lda (plotter),y
-    ora _5
+    ora (plotter),y
   //SEG55 [34] *((byte*) plot::plotter#0) ← (byte~) plot::$6 [ ] ( main:0::plots:9::plot:19 [ plots::i#2 ] ) -- _deref_zpptrby1=aby 
     sta (plotter),y
   //SEG56 plot::@return
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.sym b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.sym
index e1d0ef2eb..e652f70e9 100644
--- a/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.sym
+++ b/src/main/java/dk/camelot64/kickc/test/ref/bitmap-plotter.sym
@@ -82,7 +82,7 @@
 (byte~) plot::$1 reg byte a 4.0
 (byte~) plot::$2 reg byte a 4.0
 (byte~) plot::$3 reg byte a 4.0
-(byte~) plot::$5 $5 zp ZP_BYTE:7 4.0
+(byte~) plot::$5 reg byte a 4.0
 (byte~) plot::$6 reg byte a 4.0
 (label) plot::@return
 (byte*) plot::plotter
@@ -137,7 +137,7 @@ reg byte a [ plot::$1 ]
 reg byte a [ plot::$2 ]
 zp ZP_PTR_BYTE:5 [ plot::plotter_y#1 plot::plotter_y#2 ]
 reg byte a [ plot::$3 ]
-zp ZP_BYTE:7 [ plot::$5 ]
+reg byte a [ plot::$5 ]
 reg byte a [ plot::$6 ]
 reg byte a [ init_plot_tables::$0 ]
 reg byte a [ init_plot_tables::$7 ]
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/bresenham.asm b/src/main/java/dk/camelot64/kickc/test/ref/bresenham.asm
index eb69c2574..4ad715264 100644
--- a/src/main/java/dk/camelot64/kickc/test/ref/bresenham.asm
+++ b/src/main/java/dk/camelot64/kickc/test/ref/bresenham.asm
@@ -9,14 +9,13 @@ main: {
     .const y1 = $18
     .const xd = x1-4
     .const yd = y1-4
+    .label x = 4
     .label cursor = 2
-    .label e = 4
     .label y = 5
     lda #4
     sta y
-    lda #yd/2
-    sta e
-    ldx #4
+    ldx #yd/2
+    sta x
     lda #<SCREEN+4*$28+4
     sta cursor
     lda #>SCREEN+4*$28+4
@@ -25,18 +24,17 @@ main: {
     ldy #0
     lda #STAR
     sta (cursor),y
-    inx
+    inc x
     inc cursor
     bne !+
     inc cursor+1
   !:
-    lda e
+    txa
     clc
     adc #yd
-    sta e
-    lda #xd
-    cmp e
-    bcs b2
+    tax
+    cpx #xd
+    bcc b2
     inc y
     lda cursor
     clc
@@ -45,11 +43,13 @@ main: {
     bcc !+
     inc cursor+1
   !:
+    txa
     sec
     sbc #xd
-    sta e
+    tax
   b2:
-    cpx #x1+1
+    lda x
+    cmp #x1+1
     bcc b1
     rts
 }
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/bresenham.log b/src/main/java/dk/camelot64/kickc/test/ref/bresenham.log
index d2bfd3803..761b55d18 100644
--- a/src/main/java/dk/camelot64/kickc/test/ref/bresenham.log
+++ b/src/main/java/dk/camelot64/kickc/test/ref/bresenham.log
@@ -1647,6 +1647,7 @@ main: {
     inc cursor+1
   !:
   //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- zpby1=zpby1_minus_coby1 
+    lda e
     sec
     sbc #xd
     sta e
@@ -1694,13 +1695,12 @@ REGISTER UPLIFT SCOPES
 Uplift Scope [main] 55: zp ZP_BYTE:5 [ main::e#3 main::e#5 main::e#1 main::e#2 ] 46.75: zp ZP_PTR_BYTE:2 [ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ] 29.33: zp ZP_BYTE:6 [ main::y#2 main::y#4 main::y#1 ] 14.67: zp ZP_BYTE:4 [ main::x#2 main::x#1 ] 
 Uplift Scope [] 
 
-Uplifting [main] best 1175 combination zp ZP_BYTE:5 [ main::e#3 main::e#5 main::e#1 main::e#2 ] zp ZP_PTR_BYTE:2 [ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ] zp ZP_BYTE:6 [ main::y#2 main::y#4 main::y#1 ] reg byte x [ main::x#2 main::x#1 ] 
-Uplifting [] best 1175 combination 
-Attempting to uplift remaining variables inzp ZP_BYTE:5 [ main::e#3 main::e#5 main::e#1 main::e#2 ]
-Uplifting [main] best 1175 combination zp ZP_BYTE:5 [ main::e#3 main::e#5 main::e#1 main::e#2 ] 
+Uplifting [main] best 1195 combination reg byte x [ main::e#3 main::e#5 main::e#1 main::e#2 ] zp ZP_PTR_BYTE:2 [ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ] zp ZP_BYTE:6 [ main::y#2 main::y#4 main::y#1 ] zp ZP_BYTE:4 [ main::x#2 main::x#1 ] 
+Uplifting [] best 1195 combination 
 Attempting to uplift remaining variables inzp ZP_BYTE:6 [ main::y#2 main::y#4 main::y#1 ]
-Uplifting [main] best 1175 combination zp ZP_BYTE:6 [ main::y#2 main::y#4 main::y#1 ] 
-Allocated (was zp ZP_BYTE:5) zp ZP_BYTE:4 [ main::e#3 main::e#5 main::e#1 main::e#2 ]
+Uplifting [main] best 1195 combination zp ZP_BYTE:6 [ main::y#2 main::y#4 main::y#1 ] 
+Attempting to uplift remaining variables inzp ZP_BYTE:4 [ main::x#2 main::x#1 ]
+Uplifting [main] best 1195 combination zp ZP_BYTE:4 [ main::x#2 main::x#1 ] 
 Allocated (was zp ZP_BYTE:6) zp ZP_BYTE:5 [ main::y#2 main::y#4 main::y#1 ]
 Removing instruction jmp b1
 Removing instruction jmp bend
@@ -1733,19 +1733,19 @@ main: {
     .const y1 = $18
     .const xd = x1-4
     .const yd = y1-4
+    .label x = 4
     .label cursor = 2
-    .label e = 4
     .label y = 5
   //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
   b1_from_main:
   //SEG9 [2] phi (byte) main::y#2 = (byte) 4 [phi:main->main::@1#0] -- zpby1=coby1 
     lda #4
     sta y
-  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- zpby1=coby1 
-    lda #yd/2
-    sta e
-  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- xby=coby1 
-    ldx #4
+  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- xby=coby1 
+    ldx #yd/2
+  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- zpby1=coby1 
+    lda #4
+    sta x
   //SEG12 [2] phi (byte*) main::cursor#3 = (const byte[1000]) SCREEN#0+(byte) 4*(byte) 40+(byte) 4 [phi:main->main::@1#3] -- zpptrby1=cowo1 
     lda #<SCREEN+4*$28+4
     sta cursor
@@ -1764,22 +1764,21 @@ main: {
     ldy #0
     lda #STAR
     sta (cursor),y
-  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- xby=xby_plus_1 
-    inx
+  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- zpby1=zpby1_plus_1 
+    inc x
   //SEG21 [5] (byte*) main::cursor#1 ← (byte*) main::cursor#3 + (byte) 1 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ( main:0 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ) -- zpptrby1=zpptrby1_plus_1 
     inc cursor
     bne !+
     inc cursor+1
   !:
-  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- zpby1=zpby1_plus_coby1 
-    lda e
+  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- xby=xby_plus_coby1 
+    txa
     clc
     adc #yd
-    sta e
-  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_zpby1_then_la1 
-    lda #xd
-    cmp e
-    bcs b2_from_b1
+    tax
+  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_xby_then_la1 
+    cpx #xd
+    bcc b2_from_b1
   //SEG24 main::@3
   b3:
   //SEG25 [8] (byte) main::y#1 ← (byte) main::y#2 + (byte) 1 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ( main:0 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ) -- zpby1=zpby1_plus_1 
@@ -1792,10 +1791,11 @@ main: {
     bcc !+
     inc cursor+1
   !:
-  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- zpby1=zpby1_minus_coby1 
+  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- xby=xby_minus_coby1 
+    txa
     sec
     sbc #xd
-    sta e
+    tax
   //SEG28 [11] phi from main::@1 main::@3 to main::@2 [phi:main::@1/main::@3->main::@2]
   b2_from_b1:
   b2_from_b3:
@@ -1804,8 +1804,115 @@ main: {
   //SEG31 [11] phi (byte*) main::cursor#5 = (byte*) main::cursor#1 [phi:main::@1/main::@3->main::@2#2] -- register_copy 
   //SEG32 main::@2
   b2:
-  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- xby_lt_coby1_then_la1 
-    cpx #x1+1
+  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- zpby1_lt_coby1_then_la1 
+    lda x
+    cmp #x1+1
+    bcc b1_from_b2
+  //SEG34 main::@return
+  breturn:
+  //SEG35 [13] return  [ ] ( main:0 [ ] )
+    rts
+}
+
+Removing instruction lda #4
+Succesful ASM optimization Pass5UnnecesaryLoadElimination
+ASSEMBLER
+//SEG0 Basic Upstart
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+//SEG1 Global Constants & labels
+  .const STAR = $51
+  .const SCREEN = $400
+//SEG2 @begin
+bbegin:
+//SEG3 @1
+b1:
+//SEG4 [0] call main param-assignment [ ] ( )
+//SEG5 [1] phi from @1 to main [phi:@1->main]
+main_from_b1:
+  jsr main
+//SEG6 @end
+bend:
+//SEG7 main
+main: {
+    .const x1 = $27
+    .const y1 = $18
+    .const xd = x1-4
+    .const yd = y1-4
+    .label x = 4
+    .label cursor = 2
+    .label y = 5
+  //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
+  b1_from_main:
+  //SEG9 [2] phi (byte) main::y#2 = (byte) 4 [phi:main->main::@1#0] -- zpby1=coby1 
+    lda #4
+    sta y
+  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- xby=coby1 
+    ldx #yd/2
+  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- zpby1=coby1 
+    sta x
+  //SEG12 [2] phi (byte*) main::cursor#3 = (const byte[1000]) SCREEN#0+(byte) 4*(byte) 40+(byte) 4 [phi:main->main::@1#3] -- zpptrby1=cowo1 
+    lda #<SCREEN+4*$28+4
+    sta cursor
+    lda #>SCREEN+4*$28+4
+    sta cursor+1
+    jmp b1
+  //SEG13 [2] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
+  b1_from_b2:
+  //SEG14 [2] phi (byte) main::y#2 = (byte) main::y#4 [phi:main::@2->main::@1#0] -- register_copy 
+  //SEG15 [2] phi (byte) main::e#3 = (byte) main::e#5 [phi:main::@2->main::@1#1] -- register_copy 
+  //SEG16 [2] phi (byte) main::x#2 = (byte) main::x#1 [phi:main::@2->main::@1#2] -- register_copy 
+  //SEG17 [2] phi (byte*) main::cursor#3 = (byte*) main::cursor#5 [phi:main::@2->main::@1#3] -- register_copy 
+  //SEG18 main::@1
+  b1:
+  //SEG19 [3] *((byte*) main::cursor#3) ← (const byte) STAR#0 [ main::cursor#3 main::x#2 main::e#3 main::y#2 ] ( main:0 [ main::cursor#3 main::x#2 main::e#3 main::y#2 ] ) -- _deref_zpptrby1=coby1 
+    ldy #0
+    lda #STAR
+    sta (cursor),y
+  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- zpby1=zpby1_plus_1 
+    inc x
+  //SEG21 [5] (byte*) main::cursor#1 ← (byte*) main::cursor#3 + (byte) 1 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ( main:0 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ) -- zpptrby1=zpptrby1_plus_1 
+    inc cursor
+    bne !+
+    inc cursor+1
+  !:
+  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- xby=xby_plus_coby1 
+    txa
+    clc
+    adc #yd
+    tax
+  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_xby_then_la1 
+    cpx #xd
+    bcc b2_from_b1
+  //SEG24 main::@3
+  b3:
+  //SEG25 [8] (byte) main::y#1 ← (byte) main::y#2 + (byte) 1 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ( main:0 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ) -- zpby1=zpby1_plus_1 
+    inc y
+  //SEG26 [9] (byte*) main::cursor#2 ← (byte*) main::cursor#1 + (byte) 40 [ main::x#1 main::e#1 main::y#1 main::cursor#2 ] ( main:0 [ main::x#1 main::e#1 main::y#1 main::cursor#2 ] ) -- zpptrby1=zpptrby1_plus_coby1 
+    lda cursor
+    clc
+    adc #$28
+    sta cursor
+    bcc !+
+    inc cursor+1
+  !:
+  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- xby=xby_minus_coby1 
+    txa
+    sec
+    sbc #xd
+    tax
+  //SEG28 [11] phi from main::@1 main::@3 to main::@2 [phi:main::@1/main::@3->main::@2]
+  b2_from_b1:
+  b2_from_b3:
+  //SEG29 [11] phi (byte) main::y#4 = (byte) main::y#2 [phi:main::@1/main::@3->main::@2#0] -- register_copy 
+  //SEG30 [11] phi (byte) main::e#5 = (byte) main::e#1 [phi:main::@1/main::@3->main::@2#1] -- register_copy 
+  //SEG31 [11] phi (byte*) main::cursor#5 = (byte*) main::cursor#1 [phi:main::@1/main::@3->main::@2#2] -- register_copy 
+  //SEG32 main::@2
+  b2:
+  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- zpby1_lt_coby1_then_la1 
+    lda x
+    cmp #x1+1
     bcc b1_from_b2
   //SEG34 main::@return
   breturn:
@@ -1843,19 +1950,18 @@ main: {
     .const y1 = $18
     .const xd = x1-4
     .const yd = y1-4
+    .label x = 4
     .label cursor = 2
-    .label e = 4
     .label y = 5
   //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
   b1_from_main:
   //SEG9 [2] phi (byte) main::y#2 = (byte) 4 [phi:main->main::@1#0] -- zpby1=coby1 
     lda #4
     sta y
-  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- zpby1=coby1 
-    lda #yd/2
-    sta e
-  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- xby=coby1 
-    ldx #4
+  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- xby=coby1 
+    ldx #yd/2
+  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- zpby1=coby1 
+    sta x
   //SEG12 [2] phi (byte*) main::cursor#3 = (const byte[1000]) SCREEN#0+(byte) 4*(byte) 40+(byte) 4 [phi:main->main::@1#3] -- zpptrby1=cowo1 
     lda #<SCREEN+4*$28+4
     sta cursor
@@ -1873,22 +1979,21 @@ main: {
     ldy #0
     lda #STAR
     sta (cursor),y
-  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- xby=xby_plus_1 
-    inx
+  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- zpby1=zpby1_plus_1 
+    inc x
   //SEG21 [5] (byte*) main::cursor#1 ← (byte*) main::cursor#3 + (byte) 1 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ( main:0 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ) -- zpptrby1=zpptrby1_plus_1 
     inc cursor
     bne !+
     inc cursor+1
   !:
-  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- zpby1=zpby1_plus_coby1 
-    lda e
+  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- xby=xby_plus_coby1 
+    txa
     clc
     adc #yd
-    sta e
-  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_zpby1_then_la1 
-    lda #xd
-    cmp e
-    bcs b2
+    tax
+  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_xby_then_la1 
+    cpx #xd
+    bcc b2
   //SEG24 main::@3
   b3:
   //SEG25 [8] (byte) main::y#1 ← (byte) main::y#2 + (byte) 1 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ( main:0 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ) -- zpby1=zpby1_plus_1 
@@ -1901,18 +2006,20 @@ main: {
     bcc !+
     inc cursor+1
   !:
-  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- zpby1=zpby1_minus_coby1 
+  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- xby=xby_minus_coby1 
+    txa
     sec
     sbc #xd
-    sta e
+    tax
   //SEG28 [11] phi from main::@1 main::@3 to main::@2 [phi:main::@1/main::@3->main::@2]
   //SEG29 [11] phi (byte) main::y#4 = (byte) main::y#2 [phi:main::@1/main::@3->main::@2#0] -- register_copy 
   //SEG30 [11] phi (byte) main::e#5 = (byte) main::e#1 [phi:main::@1/main::@3->main::@2#1] -- register_copy 
   //SEG31 [11] phi (byte*) main::cursor#5 = (byte*) main::cursor#1 [phi:main::@1/main::@3->main::@2#2] -- register_copy 
   //SEG32 main::@2
   b2:
-  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- xby_lt_coby1_then_la1 
-    cpx #x1+1
+  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- zpby1_lt_coby1_then_la1 
+    lda x
+    cmp #x1+1
     bcc b1
   //SEG34 main::@return
   breturn:
@@ -1946,18 +2053,17 @@ main: {
     .const y1 = $18
     .const xd = x1-4
     .const yd = y1-4
+    .label x = 4
     .label cursor = 2
-    .label e = 4
     .label y = 5
   //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
   //SEG9 [2] phi (byte) main::y#2 = (byte) 4 [phi:main->main::@1#0] -- zpby1=coby1 
     lda #4
     sta y
-  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- zpby1=coby1 
-    lda #yd/2
-    sta e
-  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- xby=coby1 
-    ldx #4
+  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- xby=coby1 
+    ldx #yd/2
+  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- zpby1=coby1 
+    sta x
   //SEG12 [2] phi (byte*) main::cursor#3 = (const byte[1000]) SCREEN#0+(byte) 4*(byte) 40+(byte) 4 [phi:main->main::@1#3] -- zpptrby1=cowo1 
     lda #<SCREEN+4*$28+4
     sta cursor
@@ -1975,22 +2081,21 @@ main: {
     ldy #0
     lda #STAR
     sta (cursor),y
-  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- xby=xby_plus_1 
-    inx
+  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- zpby1=zpby1_plus_1 
+    inc x
   //SEG21 [5] (byte*) main::cursor#1 ← (byte*) main::cursor#3 + (byte) 1 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ( main:0 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ) -- zpptrby1=zpptrby1_plus_1 
     inc cursor
     bne !+
     inc cursor+1
   !:
-  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- zpby1=zpby1_plus_coby1 
-    lda e
+  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- xby=xby_plus_coby1 
+    txa
     clc
     adc #yd
-    sta e
-  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_zpby1_then_la1 
-    lda #xd
-    cmp e
-    bcs b2
+    tax
+  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_xby_then_la1 
+    cpx #xd
+    bcc b2
   //SEG24 main::@3
   //SEG25 [8] (byte) main::y#1 ← (byte) main::y#2 + (byte) 1 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ( main:0 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ) -- zpby1=zpby1_plus_1 
     inc y
@@ -2002,18 +2107,20 @@ main: {
     bcc !+
     inc cursor+1
   !:
-  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- zpby1=zpby1_minus_coby1 
+  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- xby=xby_minus_coby1 
+    txa
     sec
     sbc #xd
-    sta e
+    tax
   //SEG28 [11] phi from main::@1 main::@3 to main::@2 [phi:main::@1/main::@3->main::@2]
   //SEG29 [11] phi (byte) main::y#4 = (byte) main::y#2 [phi:main::@1/main::@3->main::@2#0] -- register_copy 
   //SEG30 [11] phi (byte) main::e#5 = (byte) main::e#1 [phi:main::@1/main::@3->main::@2#1] -- register_copy 
   //SEG31 [11] phi (byte*) main::cursor#5 = (byte*) main::cursor#1 [phi:main::@1/main::@3->main::@2#2] -- register_copy 
   //SEG32 main::@2
   b2:
-  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- xby_lt_coby1_then_la1 
-    cpx #x1+1
+  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- zpby1_lt_coby1_then_la1 
+    lda x
+    cmp #x1+1
     bcc b1
   //SEG34 main::@return
   //SEG35 [13] return  [ ] ( main:0 [ ] )
@@ -2042,18 +2149,17 @@ main: {
     .const y1 = $18
     .const xd = x1-4
     .const yd = y1-4
+    .label x = 4
     .label cursor = 2
-    .label e = 4
     .label y = 5
   //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
   //SEG9 [2] phi (byte) main::y#2 = (byte) 4 [phi:main->main::@1#0] -- zpby1=coby1 
     lda #4
     sta y
-  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- zpby1=coby1 
-    lda #yd/2
-    sta e
-  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- xby=coby1 
-    ldx #4
+  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- xby=coby1 
+    ldx #yd/2
+  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- zpby1=coby1 
+    sta x
   //SEG12 [2] phi (byte*) main::cursor#3 = (const byte[1000]) SCREEN#0+(byte) 4*(byte) 40+(byte) 4 [phi:main->main::@1#3] -- zpptrby1=cowo1 
     lda #<SCREEN+4*$28+4
     sta cursor
@@ -2070,22 +2176,21 @@ main: {
     ldy #0
     lda #STAR
     sta (cursor),y
-  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- xby=xby_plus_1 
-    inx
+  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- zpby1=zpby1_plus_1 
+    inc x
   //SEG21 [5] (byte*) main::cursor#1 ← (byte*) main::cursor#3 + (byte) 1 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ( main:0 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ) -- zpptrby1=zpptrby1_plus_1 
     inc cursor
     bne !+
     inc cursor+1
   !:
-  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- zpby1=zpby1_plus_coby1 
-    lda e
+  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- xby=xby_plus_coby1 
+    txa
     clc
     adc #yd
-    sta e
-  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_zpby1_then_la1 
-    lda #xd
-    cmp e
-    bcs b2
+    tax
+  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_xby_then_la1 
+    cpx #xd
+    bcc b2
   //SEG24 main::@3
   //SEG25 [8] (byte) main::y#1 ← (byte) main::y#2 + (byte) 1 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ( main:0 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ) -- zpby1=zpby1_plus_1 
     inc y
@@ -2097,18 +2202,20 @@ main: {
     bcc !+
     inc cursor+1
   !:
-  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- zpby1=zpby1_minus_coby1 
+  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- xby=xby_minus_coby1 
+    txa
     sec
     sbc #xd
-    sta e
+    tax
   //SEG28 [11] phi from main::@1 main::@3 to main::@2 [phi:main::@1/main::@3->main::@2]
   //SEG29 [11] phi (byte) main::y#4 = (byte) main::y#2 [phi:main::@1/main::@3->main::@2#0] -- register_copy 
   //SEG30 [11] phi (byte) main::e#5 = (byte) main::e#1 [phi:main::@1/main::@3->main::@2#1] -- register_copy 
   //SEG31 [11] phi (byte*) main::cursor#5 = (byte*) main::cursor#1 [phi:main::@1/main::@3->main::@2#2] -- register_copy 
   //SEG32 main::@2
   b2:
-  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- xby_lt_coby1_then_la1 
-    cpx #x1+1
+  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- zpby1_lt_coby1_then_la1 
+    lda x
+    cmp #x1+1
     bcc b1
   //SEG34 main::@return
   //SEG35 [13] return  [ ] ( main:0 [ ] )
@@ -2134,13 +2241,13 @@ FINAL SYMBOL TABLE
 (byte*) main::cursor#3 cursor zp ZP_PTR_BYTE:2 11.0
 (byte*) main::cursor#5 cursor zp ZP_PTR_BYTE:2 16.5
 (byte) main::e
-(byte) main::e#1 e zp ZP_BYTE:4 11.0
-(byte) main::e#2 e zp ZP_BYTE:4 22.0
-(byte) main::e#3 e zp ZP_BYTE:4 5.5
-(byte) main::e#5 e zp ZP_BYTE:4 16.5
+(byte) main::e#1 reg byte x 11.0
+(byte) main::e#2 reg byte x 22.0
+(byte) main::e#3 reg byte x 5.5
+(byte) main::e#5 reg byte x 16.5
 (byte) main::x
-(byte) main::x#1 reg byte x 3.666666666666667
-(byte) main::x#2 reg byte x 11.0
+(byte) main::x#1 x zp ZP_BYTE:4 3.666666666666667
+(byte) main::x#2 x zp ZP_BYTE:4 11.0
 (byte) main::x0
 (byte) main::x1
 (const byte) main::x1#0 x1 = (byte) 39
@@ -2157,8 +2264,8 @@ FINAL SYMBOL TABLE
 (const byte) main::yd#0 yd = (const byte) main::y1#0-(byte) 4
 
 zp ZP_PTR_BYTE:2 [ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ]
-reg byte x [ main::x#2 main::x#1 ]
-zp ZP_BYTE:4 [ main::e#3 main::e#5 main::e#1 main::e#2 ]
+zp ZP_BYTE:4 [ main::x#2 main::x#1 ]
+reg byte x [ main::e#3 main::e#5 main::e#1 main::e#2 ]
 zp ZP_BYTE:5 [ main::y#2 main::y#4 main::y#1 ]
 
 FINAL CODE
@@ -2181,18 +2288,17 @@ main: {
     .const y1 = $18
     .const xd = x1-4
     .const yd = y1-4
+    .label x = 4
     .label cursor = 2
-    .label e = 4
     .label y = 5
   //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
   //SEG9 [2] phi (byte) main::y#2 = (byte) 4 [phi:main->main::@1#0] -- zpby1=coby1 
     lda #4
     sta y
-  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- zpby1=coby1 
-    lda #yd/2
-    sta e
-  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- xby=coby1 
-    ldx #4
+  //SEG10 [2] phi (byte) main::e#3 = (const byte) main::yd#0/(byte) 2 [phi:main->main::@1#1] -- xby=coby1 
+    ldx #yd/2
+  //SEG11 [2] phi (byte) main::x#2 = (byte) 4 [phi:main->main::@1#2] -- zpby1=coby1 
+    sta x
   //SEG12 [2] phi (byte*) main::cursor#3 = (const byte[1000]) SCREEN#0+(byte) 4*(byte) 40+(byte) 4 [phi:main->main::@1#3] -- zpptrby1=cowo1 
     lda #<SCREEN+4*$28+4
     sta cursor
@@ -2209,22 +2315,21 @@ main: {
     ldy #0
     lda #STAR
     sta (cursor),y
-  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- xby=xby_plus_1 
-    inx
+  //SEG20 [4] (byte) main::x#1 ← (byte) main::x#2 + (byte) 1 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ( main:0 [ main::cursor#3 main::e#3 main::y#2 main::x#1 ] ) -- zpby1=zpby1_plus_1 
+    inc x
   //SEG21 [5] (byte*) main::cursor#1 ← (byte*) main::cursor#3 + (byte) 1 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ( main:0 [ main::e#3 main::y#2 main::x#1 main::cursor#1 ] ) -- zpptrby1=zpptrby1_plus_1 
     inc cursor
     bne !+
     inc cursor+1
   !:
-  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- zpby1=zpby1_plus_coby1 
-    lda e
+  //SEG22 [6] (byte) main::e#1 ← (byte) main::e#3 + (const byte) main::yd#0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- xby=xby_plus_coby1 
+    txa
     clc
     adc #yd
-    sta e
-  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_zpby1_then_la1 
-    lda #xd
-    cmp e
-    bcs b2
+    tax
+  //SEG23 [7] if((const byte) main::xd#0>=(byte) main::e#1) goto main::@2 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ( main:0 [ main::y#2 main::x#1 main::cursor#1 main::e#1 ] ) -- coby1_ge_xby_then_la1 
+    cpx #xd
+    bcc b2
   //SEG24 main::@3
   //SEG25 [8] (byte) main::y#1 ← (byte) main::y#2 + (byte) 1 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ( main:0 [ main::x#1 main::cursor#1 main::e#1 main::y#1 ] ) -- zpby1=zpby1_plus_1 
     inc y
@@ -2236,18 +2341,20 @@ main: {
     bcc !+
     inc cursor+1
   !:
-  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- zpby1=zpby1_minus_coby1 
+  //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::cursor#2 main::e#2 ] ) -- xby=xby_minus_coby1 
+    txa
     sec
     sbc #xd
-    sta e
+    tax
   //SEG28 [11] phi from main::@1 main::@3 to main::@2 [phi:main::@1/main::@3->main::@2]
   //SEG29 [11] phi (byte) main::y#4 = (byte) main::y#2 [phi:main::@1/main::@3->main::@2#0] -- register_copy 
   //SEG30 [11] phi (byte) main::e#5 = (byte) main::e#1 [phi:main::@1/main::@3->main::@2#1] -- register_copy 
   //SEG31 [11] phi (byte*) main::cursor#5 = (byte*) main::cursor#1 [phi:main::@1/main::@3->main::@2#2] -- register_copy 
   //SEG32 main::@2
   b2:
-  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- xby_lt_coby1_then_la1 
-    cpx #x1+1
+  //SEG33 [12] if((byte) main::x#1<(const byte) main::x1#0+(byte) 1) goto main::@1 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ( main:0 [ main::cursor#5 main::x#1 main::e#5 main::y#4 ] ) -- zpby1_lt_coby1_then_la1 
+    lda x
+    cmp #x1+1
     bcc b1
   //SEG34 main::@return
   //SEG35 [13] return  [ ] ( main:0 [ ] )
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/bresenham.sym b/src/main/java/dk/camelot64/kickc/test/ref/bresenham.sym
index acf8252e4..9d23de3e0 100644
--- a/src/main/java/dk/camelot64/kickc/test/ref/bresenham.sym
+++ b/src/main/java/dk/camelot64/kickc/test/ref/bresenham.sym
@@ -16,13 +16,13 @@
 (byte*) main::cursor#3 cursor zp ZP_PTR_BYTE:2 11.0
 (byte*) main::cursor#5 cursor zp ZP_PTR_BYTE:2 16.5
 (byte) main::e
-(byte) main::e#1 e zp ZP_BYTE:4 11.0
-(byte) main::e#2 e zp ZP_BYTE:4 22.0
-(byte) main::e#3 e zp ZP_BYTE:4 5.5
-(byte) main::e#5 e zp ZP_BYTE:4 16.5
+(byte) main::e#1 reg byte x 11.0
+(byte) main::e#2 reg byte x 22.0
+(byte) main::e#3 reg byte x 5.5
+(byte) main::e#5 reg byte x 16.5
 (byte) main::x
-(byte) main::x#1 reg byte x 3.666666666666667
-(byte) main::x#2 reg byte x 11.0
+(byte) main::x#1 x zp ZP_BYTE:4 3.666666666666667
+(byte) main::x#2 x zp ZP_BYTE:4 11.0
 (byte) main::x0
 (byte) main::x1
 (const byte) main::x1#0 x1 = (byte) 39
@@ -39,6 +39,6 @@
 (const byte) main::yd#0 yd = (const byte) main::y1#0-(byte) 4
 
 zp ZP_PTR_BYTE:2 [ main::cursor#3 main::cursor#5 main::cursor#1 main::cursor#2 ]
-reg byte x [ main::x#2 main::x#1 ]
-zp ZP_BYTE:4 [ main::e#3 main::e#5 main::e#1 main::e#2 ]
+zp ZP_BYTE:4 [ main::x#2 main::x#1 ]
+reg byte x [ main::e#3 main::e#5 main::e#1 main::e#2 ]
 zp ZP_BYTE:5 [ main::y#2 main::y#4 main::y#1 ]
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/bresenhamarr.log b/src/main/java/dk/camelot64/kickc/test/ref/bresenhamarr.log
index 748cf668e..fa01820dc 100644
--- a/src/main/java/dk/camelot64/kickc/test/ref/bresenhamarr.log
+++ b/src/main/java/dk/camelot64/kickc/test/ref/bresenhamarr.log
@@ -1599,6 +1599,7 @@ main: {
     inc idx+1
   !:
   //SEG27 [10] (byte) main::e#2 ← (byte) main::e#1 - (const byte) main::xd#0 [ main::x#1 main::y#1 main::idx#2 main::e#2 ] ( main:0 [ main::x#1 main::y#1 main::idx#2 main::e#2 ] ) -- zpby1=zpby1_minus_coby1 
+    lda e
     sec
     sbc #xd
     sta e
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.asm b/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.asm
new file mode 100644
index 000000000..29ab55af0
--- /dev/null
+++ b/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.asm
@@ -0,0 +1,26 @@
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+  jsr main
+main: {
+    .const screen = $400
+    .label i = 2
+    ldx #0
+    lda #-$7f
+    sta i
+  b1:
+    lda i
+    sec
+    sbc #$7f
+    bvc !+
+    eor #$80
+  !:
+    bmi b2
+    rts
+  b2:
+    lda i
+    sta screen,x
+    inc i
+    inx
+    jmp b1
+}
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.cfg b/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.cfg
new file mode 100644
index 000000000..de5365426
--- /dev/null
+++ b/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.cfg
@@ -0,0 +1,22 @@
+@begin: scope:[]  from
+  to:@1
+@1: scope:[]  from @begin
+  [0] call main param-assignment [ ] ( )
+  to:@end
+@end: scope:[]  from @1
+main: scope:[main]  from @1
+  [1] phi() [ ] ( main:0 [ ] )
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  [2] (byte) main::j#2 ← phi( main/(byte) 0 main::@2/(byte) main::j#1 ) [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] )
+  [2] (signed byte) main::i#2 ← phi( main/-(byte) 127 main::@2/(signed byte) main::i#1 ) [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] )
+  [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] )
+  to:main::@return
+main::@return: scope:[main]  from main::@1
+  [4] return  [ ] ( main:0 [ ] )
+  to:@return
+main::@2: scope:[main]  from main::@1
+  [5] *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] )
+  [6] (signed byte) main::i#1 ← ++ (signed byte) main::i#2 [ main::j#2 main::i#1 ] ( main:0 [ main::j#2 main::i#1 ] )
+  [7] (byte) main::j#1 ← ++ (byte) main::j#2 [ main::i#1 main::j#1 ] ( main:0 [ main::i#1 main::j#1 ] )
+  to:main::@1
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.log b/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.log
new file mode 100644
index 000000000..42b1f1933
--- /dev/null
+++ b/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.log
@@ -0,0 +1,960 @@
+
+void main() {
+    byte[] screen = $0400;
+    byte j = 0;
+    signed byte i = -127;
+    while(i<127) {
+        screen[j] = i;
+        i++;
+        j++;
+    }
+
+}
+Adding pre/post-modifier (signed byte) main::i ← ++ (signed byte) main::i
+Adding pre/post-modifier (byte) main::j ← ++ (byte) main::j
+PROGRAM
+proc (void()) main()
+  (byte[]) main::screen ← (word) 1024
+  (byte) main::j ← (byte) 0
+  (byte~) main::$0 ← - (byte) 127
+  (signed byte) main::i ← (byte~) main::$0
+main::@1:
+  (boolean~) main::$1 ← (signed byte) main::i < (byte) 127
+  if((boolean~) main::$1) goto main::@2
+  goto main::@3
+main::@2:
+  *((byte[]) main::screen + (byte) main::j) ← (signed byte) main::i
+  (signed byte) main::i ← ++ (signed byte) main::i
+  (byte) main::j ← ++ (byte) main::j
+  goto main::@1
+main::@3:
+main::@return:
+  return 
+endproc // main()
+  call main 
+
+SYMBOLS
+(void()) main()
+(byte~) main::$0
+(boolean~) main::$1
+(label) main::@1
+(label) main::@2
+(label) main::@3
+(label) main::@return
+(signed byte) main::i
+(byte) main::j
+(byte[]) main::screen
+
+INITIAL CONTROL FLOW GRAPH
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from
+  (byte[]) main::screen ← (word) 1024
+  (byte) main::j ← (byte) 0
+  (byte~) main::$0 ← - (byte) 127
+  (signed byte) main::i ← (byte~) main::$0
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (boolean~) main::$1 ← (signed byte) main::i < (byte) 127
+  if((boolean~) main::$1) goto main::@2
+  to:main::@4
+main::@2: scope:[main]  from main::@1 main::@5
+  *((byte[]) main::screen + (byte) main::j) ← (signed byte) main::i
+  (signed byte) main::i ← ++ (signed byte) main::i
+  (byte) main::j ← ++ (byte) main::j
+  to:main::@1
+main::@4: scope:[main]  from main::@1
+  to:main::@3
+main::@3: scope:[main]  from main::@4 main::@6
+  to:main::@return
+main::@5: scope:[main]  from
+  to:main::@2
+main::@6: scope:[main]  from
+  to:main::@3
+main::@return: scope:[main]  from main::@3
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main 
+  to:@end
+@end: scope:[]  from @1
+
+Removing empty block main::@4
+Removing empty block main::@3
+Removing empty block main::@5
+Removing empty block main::@6
+CONTROL FLOW GRAPH
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from
+  (byte[]) main::screen ← (word) 1024
+  (byte) main::j ← (byte) 0
+  (byte~) main::$0 ← - (byte) 127
+  (signed byte) main::i ← (byte~) main::$0
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (boolean~) main::$1 ← (signed byte) main::i < (byte) 127
+  if((boolean~) main::$1) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  *((byte[]) main::screen + (byte) main::j) ← (signed byte) main::i
+  (signed byte) main::i ← ++ (signed byte) main::i
+  (byte) main::j ← ++ (byte) main::j
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main 
+  to:@end
+@end: scope:[]  from @1
+
+PROCEDURE MODIFY VARIABLE ANALYSIS
+
+CONTROL FLOW GRAPH WITH ASSIGNMENT CALL
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from @1
+  (byte[]) main::screen ← (word) 1024
+  (byte) main::j ← (byte) 0
+  (byte~) main::$0 ← - (byte) 127
+  (signed byte) main::i ← (byte~) main::$0
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (boolean~) main::$1 ← (signed byte) main::i < (byte) 127
+  if((boolean~) main::$1) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  *((byte[]) main::screen + (byte) main::j) ← (signed byte) main::i
+  (signed byte) main::i ← ++ (signed byte) main::i
+  (byte) main::j ← ++ (byte) main::j
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@2
+@2: scope:[]  from @1
+  to:@end
+@end: scope:[]  from @2
+
+Completing Phi functions...
+Completing Phi functions...
+CONTROL FLOW GRAPH SSA
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from @1
+  (byte[]) main::screen#0 ← (word) 1024
+  (byte) main::j#0 ← (byte) 0
+  (byte~) main::$0 ← - (byte) 127
+  (signed byte) main::i#0 ← (byte~) main::$0
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (byte) main::j#3 ← phi( main/(byte) main::j#0 main::@2/(byte) main::j#1 )
+  (byte[]) main::screen#2 ← phi( main/(byte[]) main::screen#0 main::@2/(byte[]) main::screen#1 )
+  (signed byte) main::i#2 ← phi( main/(signed byte) main::i#0 main::@2/(signed byte) main::i#1 )
+  (boolean~) main::$1 ← (signed byte) main::i#2 < (byte) 127
+  if((boolean~) main::$1) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  (byte) main::j#2 ← phi( main::@1/(byte) main::j#3 )
+  (byte[]) main::screen#1 ← phi( main::@1/(byte[]) main::screen#2 )
+  (signed byte) main::i#3 ← phi( main::@1/(signed byte) main::i#2 )
+  *((byte[]) main::screen#1 + (byte) main::j#2) ← (signed byte) main::i#3
+  (signed byte) main::i#1 ← ++ (signed byte) main::i#3
+  (byte) main::j#1 ← ++ (byte) main::j#2
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@2
+@2: scope:[]  from @1
+  to:@end
+@end: scope:[]  from @2
+
+CONTROL FLOW GRAPH WITH ASSIGNMENT CALL & RETURN
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from @1
+  (byte[]) main::screen#0 ← (word) 1024
+  (byte) main::j#0 ← (byte) 0
+  (byte~) main::$0 ← - (byte) 127
+  (signed byte) main::i#0 ← (byte~) main::$0
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (byte) main::j#3 ← phi( main/(byte) main::j#0 main::@2/(byte) main::j#1 )
+  (byte[]) main::screen#2 ← phi( main/(byte[]) main::screen#0 main::@2/(byte[]) main::screen#1 )
+  (signed byte) main::i#2 ← phi( main/(signed byte) main::i#0 main::@2/(signed byte) main::i#1 )
+  (boolean~) main::$1 ← (signed byte) main::i#2 < (byte) 127
+  if((boolean~) main::$1) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  (byte) main::j#2 ← phi( main::@1/(byte) main::j#3 )
+  (byte[]) main::screen#1 ← phi( main::@1/(byte[]) main::screen#2 )
+  (signed byte) main::i#3 ← phi( main::@1/(signed byte) main::i#2 )
+  *((byte[]) main::screen#1 + (byte) main::j#2) ← (signed byte) main::i#3
+  (signed byte) main::i#1 ← ++ (signed byte) main::i#3
+  (byte) main::j#1 ← ++ (byte) main::j#2
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@2
+@2: scope:[]  from @1
+  to:@end
+@end: scope:[]  from @2
+
+INITIAL SSA SYMBOL TABLE
+(label) @1
+(label) @2
+(label) @begin
+(label) @end
+(void()) main()
+(byte~) main::$0
+(boolean~) main::$1
+(label) main::@1
+(label) main::@2
+(label) main::@return
+(signed byte) main::i
+(signed byte) main::i#0
+(signed byte) main::i#1
+(signed byte) main::i#2
+(signed byte) main::i#3
+(byte) main::j
+(byte) main::j#0
+(byte) main::j#1
+(byte) main::j#2
+(byte) main::j#3
+(byte[]) main::screen
+(byte[]) main::screen#0
+(byte[]) main::screen#1
+(byte[]) main::screen#2
+
+Culled Empty Block (label) @2
+Succesful SSA optimization Pass2CullEmptyBlocks
+CONTROL FLOW GRAPH
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from @1
+  (byte[]) main::screen#0 ← (word) 1024
+  (byte) main::j#0 ← (byte) 0
+  (byte~) main::$0 ← - (byte) 127
+  (signed byte) main::i#0 ← (byte~) main::$0
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (byte) main::j#3 ← phi( main/(byte) main::j#0 main::@2/(byte) main::j#1 )
+  (byte[]) main::screen#2 ← phi( main/(byte[]) main::screen#0 main::@2/(byte[]) main::screen#1 )
+  (signed byte) main::i#2 ← phi( main/(signed byte) main::i#0 main::@2/(signed byte) main::i#1 )
+  (boolean~) main::$1 ← (signed byte) main::i#2 < (byte) 127
+  if((boolean~) main::$1) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  (byte) main::j#2 ← phi( main::@1/(byte) main::j#3 )
+  (byte[]) main::screen#1 ← phi( main::@1/(byte[]) main::screen#2 )
+  (signed byte) main::i#3 ← phi( main::@1/(signed byte) main::i#2 )
+  *((byte[]) main::screen#1 + (byte) main::j#2) ← (signed byte) main::i#3
+  (signed byte) main::i#1 ← ++ (signed byte) main::i#3
+  (byte) main::j#1 ← ++ (byte) main::j#2
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@end
+@end: scope:[]  from @1
+
+Alias (signed byte) main::i#0 = (byte~) main::$0 
+Alias (signed byte) main::i#2 = (signed byte) main::i#3 
+Alias (byte[]) main::screen#1 = (byte[]) main::screen#2 
+Alias (byte) main::j#2 = (byte) main::j#3 
+Succesful SSA optimization Pass2AliasElimination
+CONTROL FLOW GRAPH
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from @1
+  (byte[]) main::screen#0 ← (word) 1024
+  (byte) main::j#0 ← (byte) 0
+  (signed byte) main::i#0 ← - (byte) 127
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (byte) main::j#2 ← phi( main/(byte) main::j#0 main::@2/(byte) main::j#1 )
+  (byte[]) main::screen#1 ← phi( main/(byte[]) main::screen#0 main::@2/(byte[]) main::screen#1 )
+  (signed byte) main::i#2 ← phi( main/(signed byte) main::i#0 main::@2/(signed byte) main::i#1 )
+  (boolean~) main::$1 ← (signed byte) main::i#2 < (byte) 127
+  if((boolean~) main::$1) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  *((byte[]) main::screen#1 + (byte) main::j#2) ← (signed byte) main::i#2
+  (signed byte) main::i#1 ← ++ (signed byte) main::i#2
+  (byte) main::j#1 ← ++ (byte) main::j#2
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@end
+@end: scope:[]  from @1
+
+Self Phi Eliminated (byte[]) main::screen#1
+Succesful SSA optimization Pass2SelfPhiElimination
+CONTROL FLOW GRAPH
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from @1
+  (byte[]) main::screen#0 ← (word) 1024
+  (byte) main::j#0 ← (byte) 0
+  (signed byte) main::i#0 ← - (byte) 127
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (byte) main::j#2 ← phi( main/(byte) main::j#0 main::@2/(byte) main::j#1 )
+  (byte[]) main::screen#1 ← phi( main/(byte[]) main::screen#0 )
+  (signed byte) main::i#2 ← phi( main/(signed byte) main::i#0 main::@2/(signed byte) main::i#1 )
+  (boolean~) main::$1 ← (signed byte) main::i#2 < (byte) 127
+  if((boolean~) main::$1) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  *((byte[]) main::screen#1 + (byte) main::j#2) ← (signed byte) main::i#2
+  (signed byte) main::i#1 ← ++ (signed byte) main::i#2
+  (byte) main::j#1 ← ++ (byte) main::j#2
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@end
+@end: scope:[]  from @1
+
+Redundant Phi (byte[]) main::screen#1 (byte[]) main::screen#0
+Succesful SSA optimization Pass2RedundantPhiElimination
+CONTROL FLOW GRAPH
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from @1
+  (byte[]) main::screen#0 ← (word) 1024
+  (byte) main::j#0 ← (byte) 0
+  (signed byte) main::i#0 ← - (byte) 127
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (byte) main::j#2 ← phi( main/(byte) main::j#0 main::@2/(byte) main::j#1 )
+  (signed byte) main::i#2 ← phi( main/(signed byte) main::i#0 main::@2/(signed byte) main::i#1 )
+  (boolean~) main::$1 ← (signed byte) main::i#2 < (byte) 127
+  if((boolean~) main::$1) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  *((byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2
+  (signed byte) main::i#1 ← ++ (signed byte) main::i#2
+  (byte) main::j#1 ← ++ (byte) main::j#2
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@end
+@end: scope:[]  from @1
+
+Simple Condition (boolean~) main::$1 if((signed byte) main::i#2<(byte) 127) goto main::@2
+Succesful SSA optimization Pass2ConditionalJumpSimplification
+CONTROL FLOW GRAPH
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from @1
+  (byte[]) main::screen#0 ← (word) 1024
+  (byte) main::j#0 ← (byte) 0
+  (signed byte) main::i#0 ← - (byte) 127
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (byte) main::j#2 ← phi( main/(byte) main::j#0 main::@2/(byte) main::j#1 )
+  (signed byte) main::i#2 ← phi( main/(signed byte) main::i#0 main::@2/(signed byte) main::i#1 )
+  if((signed byte) main::i#2<(byte) 127) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  *((byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2
+  (signed byte) main::i#1 ← ++ (signed byte) main::i#2
+  (byte) main::j#1 ← ++ (byte) main::j#2
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@end
+@end: scope:[]  from @1
+
+Constant (const byte[]) main::screen#0 = 1024
+Constant (const byte) main::j#0 = 0
+Constant (const signed byte) main::i#0 = -127
+Succesful SSA optimization Pass2ConstantIdentification
+CONTROL FLOW GRAPH
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from @1
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (byte) main::j#2 ← phi( main/(const byte) main::j#0 main::@2/(byte) main::j#1 )
+  (signed byte) main::i#2 ← phi( main/(const signed byte) main::i#0 main::@2/(signed byte) main::i#1 )
+  if((signed byte) main::i#2<(byte) 127) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2
+  (signed byte) main::i#1 ← ++ (signed byte) main::i#2
+  (byte) main::j#1 ← ++ (byte) main::j#2
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@end
+@end: scope:[]  from @1
+
+Inlining constant with var siblings (const byte) main::j#0
+Inlining constant with var siblings (const byte) main::j#0
+Inlining constant with var siblings (const signed byte) main::i#0
+Inlining constant with var siblings (const signed byte) main::i#0
+Constant inlined main::j#0 = (byte) 0
+Constant inlined main::i#0 = -(byte) 127
+Succesful SSA optimization Pass2ConstantInlining
+CONTROL FLOW GRAPH
+@begin: scope:[]  from
+  to:@1
+main: scope:[main]  from @1
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (byte) main::j#2 ← phi( main/(byte) 0 main::@2/(byte) main::j#1 )
+  (signed byte) main::i#2 ← phi( main/-(byte) 127 main::@2/(signed byte) main::i#1 )
+  if((signed byte) main::i#2<(byte) 127) goto main::@2
+  to:main::@return
+main::@2: scope:[main]  from main::@1
+  *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2
+  (signed byte) main::i#1 ← ++ (signed byte) main::i#2
+  (byte) main::j#1 ← ++ (byte) main::j#2
+  to:main::@1
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@end
+@end: scope:[]  from @1
+
+FINAL SYMBOL TABLE
+(label) @1
+(label) @begin
+(label) @end
+(void()) main()
+(label) main::@1
+(label) main::@2
+(label) main::@return
+(signed byte) main::i
+(signed byte) main::i#1
+(signed byte) main::i#2
+(byte) main::j
+(byte) main::j#1
+(byte) main::j#2
+(byte[]) main::screen
+(const byte[]) main::screen#0 = (word) 1024
+
+Block Sequence Planned @begin @1 @end main main::@1 main::@return main::@2 
+Block Sequence Planned @begin @1 @end main main::@1 main::@return main::@2 
+CONTROL FLOW GRAPH - PHI LIFTED
+@begin: scope:[]  from
+  to:@1
+@1: scope:[]  from @begin
+  call main param-assignment
+  to:@end
+@end: scope:[]  from @1
+main: scope:[main]  from @1
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  (byte) main::j#2 ← phi( main/(byte) 0 main::@2/(byte~) main::j#4 )
+  (signed byte) main::i#2 ← phi( main/-(byte) 127 main::@2/(signed byte~) main::i#4 )
+  if((signed byte) main::i#2<(byte) 127) goto main::@2
+  to:main::@return
+main::@return: scope:[main]  from main::@1
+  return 
+  to:@return
+main::@2: scope:[main]  from main::@1
+  *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2
+  (signed byte) main::i#1 ← ++ (signed byte) main::i#2
+  (byte) main::j#1 ← ++ (byte) main::j#2
+  (signed byte~) main::i#4 ← (signed byte) main::i#1
+  (byte~) main::j#4 ← (byte) main::j#1
+  to:main::@1
+
+Adding NOP phi() at start of main
+CALL GRAPH
+Calls in [] to main:0 
+
+Propagating live ranges...
+Propagating live ranges...
+Propagating live ranges...
+CONTROL FLOW GRAPH - LIVE RANGES FOUND
+@begin: scope:[]  from
+  to:@1
+@1: scope:[]  from @begin
+  [0] call main param-assignment [ ]
+  to:@end
+@end: scope:[]  from @1
+main: scope:[main]  from @1
+  [1] phi() [ ]
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  [2] (byte) main::j#2 ← phi( main/(byte) 0 main::@2/(byte~) main::j#4 ) [ main::i#2 main::j#2 ]
+  [2] (signed byte) main::i#2 ← phi( main/-(byte) 127 main::@2/(signed byte~) main::i#4 ) [ main::i#2 main::j#2 ]
+  [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ]
+  to:main::@return
+main::@return: scope:[main]  from main::@1
+  [4] return  [ ]
+  to:@return
+main::@2: scope:[main]  from main::@1
+  [5] *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2 [ main::i#2 main::j#2 ]
+  [6] (signed byte) main::i#1 ← ++ (signed byte) main::i#2 [ main::j#2 main::i#1 ]
+  [7] (byte) main::j#1 ← ++ (byte) main::j#2 [ main::i#1 main::j#1 ]
+  [8] (signed byte~) main::i#4 ← (signed byte) main::i#1 [ main::i#4 main::j#1 ]
+  [9] (byte~) main::j#4 ← (byte) main::j#1 [ main::i#4 main::j#4 ]
+  to:main::@1
+
+Created 2 initial phi equivalence classes
+Coalesced [8] main::i#4 ← main::i#1
+Coalesced [9] main::j#4 ← main::j#1
+Coalesced down to 2 phi equivalence classes
+Block Sequence Planned @begin @1 @end main main::@1 main::@return main::@2 
+Adding NOP phi() at start of main
+Propagating live ranges...
+Propagating live ranges...
+Propagating live ranges...
+CONTROL FLOW GRAPH - BEFORE EFFECTIVE LIVE RANGES
+@begin: scope:[]  from
+  to:@1
+@1: scope:[]  from @begin
+  [0] call main param-assignment [ ]
+  to:@end
+@end: scope:[]  from @1
+main: scope:[main]  from @1
+  [1] phi() [ ]
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  [2] (byte) main::j#2 ← phi( main/(byte) 0 main::@2/(byte) main::j#1 ) [ main::i#2 main::j#2 ]
+  [2] (signed byte) main::i#2 ← phi( main/-(byte) 127 main::@2/(signed byte) main::i#1 ) [ main::i#2 main::j#2 ]
+  [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ]
+  to:main::@return
+main::@return: scope:[main]  from main::@1
+  [4] return  [ ]
+  to:@return
+main::@2: scope:[main]  from main::@1
+  [5] *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2 [ main::i#2 main::j#2 ]
+  [6] (signed byte) main::i#1 ← ++ (signed byte) main::i#2 [ main::j#2 main::i#1 ]
+  [7] (byte) main::j#1 ← ++ (byte) main::j#2 [ main::i#1 main::j#1 ]
+  to:main::@1
+
+CONTROL FLOW GRAPH - PHI MEM COALESCED
+@begin: scope:[]  from
+  to:@1
+@1: scope:[]  from @begin
+  [0] call main param-assignment [ ] ( )
+  to:@end
+@end: scope:[]  from @1
+main: scope:[main]  from @1
+  [1] phi() [ ] ( main:0 [ ] )
+  to:main::@1
+main::@1: scope:[main]  from main main::@2
+  [2] (byte) main::j#2 ← phi( main/(byte) 0 main::@2/(byte) main::j#1 ) [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] )
+  [2] (signed byte) main::i#2 ← phi( main/-(byte) 127 main::@2/(signed byte) main::i#1 ) [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] )
+  [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] )
+  to:main::@return
+main::@return: scope:[main]  from main::@1
+  [4] return  [ ] ( main:0 [ ] )
+  to:@return
+main::@2: scope:[main]  from main::@1
+  [5] *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] )
+  [6] (signed byte) main::i#1 ← ++ (signed byte) main::i#2 [ main::j#2 main::i#1 ] ( main:0 [ main::j#2 main::i#1 ] )
+  [7] (byte) main::j#1 ← ++ (byte) main::j#2 [ main::i#1 main::j#1 ] ( main:0 [ main::i#1 main::j#1 ] )
+  to:main::@1
+
+DOMINATORS
+@begin dominated by  @begin 
+@1 dominated by  @1 @begin 
+@end dominated by  @1 @end @begin 
+main dominated by  @1 @begin main 
+main::@1 dominated by  @1 @begin main::@1 main 
+main::@return dominated by  @1 main::@return @begin main::@1 main 
+main::@2 dominated by  @1 @begin main::@2 main::@1 main 
+
+Found back edge: Loop head: main::@1 tails: main::@2 blocks: null
+Populated: Loop head: main::@1 tails: main::@2 blocks: main::@2 main::@1 
+NATURAL LOOPS
+Loop head: main::@1 tails: main::@2 blocks: main::@2 main::@1 
+
+Found 0 loops in scope []
+Found 1 loops in scope [main]
+  Loop head: main::@1 tails: main::@2 blocks: main::@2 main::@1 
+NATURAL LOOPS WITH DEPTH
+Loop head: main::@1 tails: main::@2 blocks: main::@2 main::@1  depth: 1
+
+
+VARIABLE REGISTER WEIGHTS
+(void()) main()
+(signed byte) main::i
+(signed byte) main::i#1 11.0
+(signed byte) main::i#2 14.666666666666666
+(byte) main::j
+(byte) main::j#1 22.0
+(byte) main::j#2 8.25
+(byte[]) main::screen
+
+Initial phi equivalence classes
+[ main::i#2 main::i#1 ]
+[ main::j#2 main::j#1 ]
+Complete equivalence classes
+[ main::i#2 main::i#1 ]
+[ main::j#2 main::j#1 ]
+Allocated zp ZP_SBYTE:2 [ main::i#2 main::i#1 ]
+Allocated zp ZP_BYTE:3 [ main::j#2 main::j#1 ]
+INITIAL ASM
+//SEG0 Basic Upstart
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+//SEG1 Global Constants & labels
+//SEG2 @begin
+bbegin:
+  jmp b1
+//SEG3 @1
+b1:
+//SEG4 [0] call main param-assignment [ ] ( )
+//SEG5 [1] phi from @1 to main [phi:@1->main]
+main_from_b1:
+  jsr main
+  jmp bend
+//SEG6 @end
+bend:
+//SEG7 main
+main: {
+    .const screen = $400
+    .label i = 2
+    .label j = 3
+  //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
+  b1_from_main:
+  //SEG9 [2] phi (byte) main::j#2 = (byte) 0 [phi:main->main::@1#0] -- zpby1=coby1 
+    lda #0
+    sta j
+  //SEG10 [2] phi (signed byte) main::i#2 = -(byte) 127 [phi:main->main::@1#1] -- zpsby1=coby1 
+    lda #-$7f
+    sta i
+    jmp b1
+  //SEG11 main::@1
+  b1:
+  //SEG12 [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) -- zpsby1_lt_coby1_then_la1 
+    lda i
+    sec
+    sbc #$7f
+    bvc !+
+    eor #$80
+  !:
+    bmi b2
+    jmp breturn
+  //SEG13 main::@return
+  breturn:
+  //SEG14 [4] return  [ ] ( main:0 [ ] )
+    rts
+  //SEG15 main::@2
+  b2:
+  //SEG16 [5] *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) -- cowo1_derefidx_zpby1=zpsby1 
+    lda i
+    ldx j
+    sta screen,x
+  //SEG17 [6] (signed byte) main::i#1 ← ++ (signed byte) main::i#2 [ main::j#2 main::i#1 ] ( main:0 [ main::j#2 main::i#1 ] ) -- zpsby1=_inc_zpsby1 
+    inc i
+  //SEG18 [7] (byte) main::j#1 ← ++ (byte) main::j#2 [ main::i#1 main::j#1 ] ( main:0 [ main::i#1 main::j#1 ] ) -- zpby1=_inc_zpby1 
+    inc j
+  //SEG19 [2] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
+  b1_from_b2:
+  //SEG20 [2] phi (byte) main::j#2 = (byte) main::j#1 [phi:main::@2->main::@1#0] -- register_copy 
+  //SEG21 [2] phi (signed byte) main::i#2 = (signed byte) main::i#1 [phi:main::@2->main::@1#1] -- register_copy 
+    jmp b1
+}
+
+REGISTER UPLIFT POTENTIAL REGISTERS
+Potential register analysis [3] if(main::i#2<127) goto main::@2 missing fragment xsby_lt_coby1_then_la1 allocation: reg sbyte x [ main::i#2 main::i#1 ] 
+Potential register analysis [3] if(main::i#2<127) goto main::@2 missing fragment ysby_lt_coby1_then_la1 allocation: reg sbyte y [ main::i#2 main::i#1 ] 
+MISSING FRAGMENTS
+  xsby_lt_coby1_then_la1
+  ysby_lt_coby1_then_la1
+Statement [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) always clobbers reg byte a 
+Removing always clobbered register reg byte a as potential for zp ZP_BYTE:3 [ main::j#2 main::j#1 ]
+Potential register analysis [3] if(main::i#2<127) goto main::@2 missing fragment xsby_lt_coby1_then_la1 allocation: reg sbyte x [ main::i#2 main::i#1 ] 
+Potential register analysis [3] if(main::i#2<127) goto main::@2 missing fragment ysby_lt_coby1_then_la1 allocation: reg sbyte y [ main::i#2 main::i#1 ] 
+MISSING FRAGMENTS
+  xsby_lt_coby1_then_la1
+  ysby_lt_coby1_then_la1
+Statement [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) always clobbers reg byte a 
+Potential registers zp ZP_SBYTE:2 [ main::i#2 main::i#1 ] : zp ZP_SBYTE:2 , reg sbyte a , reg sbyte x , reg sbyte y , 
+Potential registers zp ZP_BYTE:3 [ main::j#2 main::j#1 ] : zp ZP_BYTE:3 , reg byte x , reg byte y , 
+
+REGISTER UPLIFT SCOPES
+Uplift Scope [main] 30.25: zp ZP_BYTE:3 [ main::j#2 main::j#1 ] 25.67: zp ZP_SBYTE:2 [ main::i#2 main::i#1 ] 
+Uplift Scope [] 
+
+Uplifting [main] best 495 combination reg byte x [ main::j#2 main::j#1 ] zp ZP_SBYTE:2 [ main::i#2 main::i#1 ] 
+Uplifting [] best 495 combination 
+MISSING FRAGMENTS
+  asby=_inc_asby
+  cowo1_derefidx_xby=asby
+  cowo1_derefidx_yby=asby
+  xsby=coby1
+  ysby=coby1
+Removing instruction jmp b1
+Removing instruction jmp bend
+Removing instruction jmp b1
+Removing instruction jmp breturn
+Succesful ASM optimization Pass5NextJumpElimination
+ASSEMBLER
+//SEG0 Basic Upstart
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+//SEG1 Global Constants & labels
+//SEG2 @begin
+bbegin:
+//SEG3 @1
+b1:
+//SEG4 [0] call main param-assignment [ ] ( )
+//SEG5 [1] phi from @1 to main [phi:@1->main]
+main_from_b1:
+  jsr main
+//SEG6 @end
+bend:
+//SEG7 main
+main: {
+    .const screen = $400
+    .label i = 2
+  //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
+  b1_from_main:
+  //SEG9 [2] phi (byte) main::j#2 = (byte) 0 [phi:main->main::@1#0] -- xby=coby1 
+    ldx #0
+  //SEG10 [2] phi (signed byte) main::i#2 = -(byte) 127 [phi:main->main::@1#1] -- zpsby1=coby1 
+    lda #-$7f
+    sta i
+  //SEG11 main::@1
+  b1:
+  //SEG12 [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) -- zpsby1_lt_coby1_then_la1 
+    lda i
+    sec
+    sbc #$7f
+    bvc !+
+    eor #$80
+  !:
+    bmi b2
+  //SEG13 main::@return
+  breturn:
+  //SEG14 [4] return  [ ] ( main:0 [ ] )
+    rts
+  //SEG15 main::@2
+  b2:
+  //SEG16 [5] *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) -- cowo1_derefidx_xby=zpsby1 
+    lda i
+    sta screen,x
+  //SEG17 [6] (signed byte) main::i#1 ← ++ (signed byte) main::i#2 [ main::j#2 main::i#1 ] ( main:0 [ main::j#2 main::i#1 ] ) -- zpsby1=_inc_zpsby1 
+    inc i
+  //SEG18 [7] (byte) main::j#1 ← ++ (byte) main::j#2 [ main::i#1 main::j#1 ] ( main:0 [ main::i#1 main::j#1 ] ) -- xby=_inc_xby 
+    inx
+  //SEG19 [2] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
+  b1_from_b2:
+  //SEG20 [2] phi (byte) main::j#2 = (byte) main::j#1 [phi:main::@2->main::@1#0] -- register_copy 
+  //SEG21 [2] phi (signed byte) main::i#2 = (signed byte) main::i#1 [phi:main::@2->main::@1#1] -- register_copy 
+    jmp b1
+}
+
+Removing instruction bbegin:
+Removing instruction main_from_b1:
+Succesful ASM optimization Pass5RedundantLabelElimination
+ASSEMBLER
+//SEG0 Basic Upstart
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+//SEG1 Global Constants & labels
+//SEG2 @begin
+//SEG3 @1
+b1:
+//SEG4 [0] call main param-assignment [ ] ( )
+//SEG5 [1] phi from @1 to main [phi:@1->main]
+  jsr main
+//SEG6 @end
+bend:
+//SEG7 main
+main: {
+    .const screen = $400
+    .label i = 2
+  //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
+  b1_from_main:
+  //SEG9 [2] phi (byte) main::j#2 = (byte) 0 [phi:main->main::@1#0] -- xby=coby1 
+    ldx #0
+  //SEG10 [2] phi (signed byte) main::i#2 = -(byte) 127 [phi:main->main::@1#1] -- zpsby1=coby1 
+    lda #-$7f
+    sta i
+  //SEG11 main::@1
+  b1:
+  //SEG12 [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) -- zpsby1_lt_coby1_then_la1 
+    lda i
+    sec
+    sbc #$7f
+    bvc !+
+    eor #$80
+  !:
+    bmi b2
+  //SEG13 main::@return
+  breturn:
+  //SEG14 [4] return  [ ] ( main:0 [ ] )
+    rts
+  //SEG15 main::@2
+  b2:
+  //SEG16 [5] *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) -- cowo1_derefidx_xby=zpsby1 
+    lda i
+    sta screen,x
+  //SEG17 [6] (signed byte) main::i#1 ← ++ (signed byte) main::i#2 [ main::j#2 main::i#1 ] ( main:0 [ main::j#2 main::i#1 ] ) -- zpsby1=_inc_zpsby1 
+    inc i
+  //SEG18 [7] (byte) main::j#1 ← ++ (byte) main::j#2 [ main::i#1 main::j#1 ] ( main:0 [ main::i#1 main::j#1 ] ) -- xby=_inc_xby 
+    inx
+  //SEG19 [2] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
+  b1_from_b2:
+  //SEG20 [2] phi (byte) main::j#2 = (byte) main::j#1 [phi:main::@2->main::@1#0] -- register_copy 
+  //SEG21 [2] phi (signed byte) main::i#2 = (signed byte) main::i#1 [phi:main::@2->main::@1#1] -- register_copy 
+    jmp b1
+}
+
+Removing instruction b1:
+Removing instruction bend:
+Removing instruction b1_from_main:
+Removing instruction breturn:
+Removing instruction b1_from_b2:
+Succesful ASM optimization Pass5UnusedLabelElimination
+ASSEMBLER
+//SEG0 Basic Upstart
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+//SEG1 Global Constants & labels
+//SEG2 @begin
+//SEG3 @1
+//SEG4 [0] call main param-assignment [ ] ( )
+//SEG5 [1] phi from @1 to main [phi:@1->main]
+  jsr main
+//SEG6 @end
+//SEG7 main
+main: {
+    .const screen = $400
+    .label i = 2
+  //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
+  //SEG9 [2] phi (byte) main::j#2 = (byte) 0 [phi:main->main::@1#0] -- xby=coby1 
+    ldx #0
+  //SEG10 [2] phi (signed byte) main::i#2 = -(byte) 127 [phi:main->main::@1#1] -- zpsby1=coby1 
+    lda #-$7f
+    sta i
+  //SEG11 main::@1
+  b1:
+  //SEG12 [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) -- zpsby1_lt_coby1_then_la1 
+    lda i
+    sec
+    sbc #$7f
+    bvc !+
+    eor #$80
+  !:
+    bmi b2
+  //SEG13 main::@return
+  //SEG14 [4] return  [ ] ( main:0 [ ] )
+    rts
+  //SEG15 main::@2
+  b2:
+  //SEG16 [5] *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) -- cowo1_derefidx_xby=zpsby1 
+    lda i
+    sta screen,x
+  //SEG17 [6] (signed byte) main::i#1 ← ++ (signed byte) main::i#2 [ main::j#2 main::i#1 ] ( main:0 [ main::j#2 main::i#1 ] ) -- zpsby1=_inc_zpsby1 
+    inc i
+  //SEG18 [7] (byte) main::j#1 ← ++ (byte) main::j#2 [ main::i#1 main::j#1 ] ( main:0 [ main::i#1 main::j#1 ] ) -- xby=_inc_xby 
+    inx
+  //SEG19 [2] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
+  //SEG20 [2] phi (byte) main::j#2 = (byte) main::j#1 [phi:main::@2->main::@1#0] -- register_copy 
+  //SEG21 [2] phi (signed byte) main::i#2 = (signed byte) main::i#1 [phi:main::@2->main::@1#1] -- register_copy 
+    jmp b1
+}
+
+FINAL SYMBOL TABLE
+(label) @1
+(label) @begin
+(label) @end
+(void()) main()
+(label) main::@1
+(label) main::@2
+(label) main::@return
+(signed byte) main::i
+(signed byte) main::i#1 i zp ZP_SBYTE:2 11.0
+(signed byte) main::i#2 i zp ZP_SBYTE:2 14.666666666666666
+(byte) main::j
+(byte) main::j#1 reg byte x 22.0
+(byte) main::j#2 reg byte x 8.25
+(byte[]) main::screen
+(const byte[]) main::screen#0 screen = (word) 1024
+
+zp ZP_SBYTE:2 [ main::i#2 main::i#1 ]
+reg byte x [ main::j#2 main::j#1 ]
+
+FINAL CODE
+//SEG0 Basic Upstart
+.pc = $801 "Basic"
+:BasicUpstart(main)
+.pc = $80d "Program"
+//SEG1 Global Constants & labels
+//SEG2 @begin
+//SEG3 @1
+//SEG4 [0] call main param-assignment [ ] ( )
+//SEG5 [1] phi from @1 to main [phi:@1->main]
+  jsr main
+//SEG6 @end
+//SEG7 main
+main: {
+    .const screen = $400
+    .label i = 2
+  //SEG8 [2] phi from main to main::@1 [phi:main->main::@1]
+  //SEG9 [2] phi (byte) main::j#2 = (byte) 0 [phi:main->main::@1#0] -- xby=coby1 
+    ldx #0
+  //SEG10 [2] phi (signed byte) main::i#2 = -(byte) 127 [phi:main->main::@1#1] -- zpsby1=coby1 
+    lda #-$7f
+    sta i
+  //SEG11 main::@1
+  b1:
+  //SEG12 [3] if((signed byte) main::i#2<(byte) 127) goto main::@2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) -- zpsby1_lt_coby1_then_la1 
+    lda i
+    sec
+    sbc #$7f
+    bvc !+
+    eor #$80
+  !:
+    bmi b2
+  //SEG13 main::@return
+  //SEG14 [4] return  [ ] ( main:0 [ ] )
+    rts
+  //SEG15 main::@2
+  b2:
+  //SEG16 [5] *((const byte[]) main::screen#0 + (byte) main::j#2) ← (signed byte) main::i#2 [ main::i#2 main::j#2 ] ( main:0 [ main::i#2 main::j#2 ] ) -- cowo1_derefidx_xby=zpsby1 
+    lda i
+    sta screen,x
+  //SEG17 [6] (signed byte) main::i#1 ← ++ (signed byte) main::i#2 [ main::j#2 main::i#1 ] ( main:0 [ main::j#2 main::i#1 ] ) -- zpsby1=_inc_zpsby1 
+    inc i
+  //SEG18 [7] (byte) main::j#1 ← ++ (byte) main::j#2 [ main::i#1 main::j#1 ] ( main:0 [ main::i#1 main::j#1 ] ) -- xby=_inc_xby 
+    inx
+  //SEG19 [2] phi from main::@2 to main::@1 [phi:main::@2->main::@1]
+  //SEG20 [2] phi (byte) main::j#2 = (byte) main::j#1 [phi:main::@2->main::@1#0] -- register_copy 
+  //SEG21 [2] phi (signed byte) main::i#2 = (signed byte) main::i#1 [phi:main::@2->main::@1#1] -- register_copy 
+    jmp b1
+}
+
diff --git a/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.sym b/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.sym
new file mode 100644
index 000000000..cf8c15c36
--- /dev/null
+++ b/src/main/java/dk/camelot64/kickc/test/ref/signed-bytes.sym
@@ -0,0 +1,18 @@
+(label) @1
+(label) @begin
+(label) @end
+(void()) main()
+(label) main::@1
+(label) main::@2
+(label) main::@return
+(signed byte) main::i
+(signed byte) main::i#1 i zp ZP_SBYTE:2 11.0
+(signed byte) main::i#2 i zp ZP_SBYTE:2 14.666666666666666
+(byte) main::j
+(byte) main::j#1 reg byte x 22.0
+(byte) main::j#2 reg byte x 8.25
+(byte[]) main::screen
+(const byte[]) main::screen#0 screen = (word) 1024
+
+zp ZP_SBYTE:2 [ main::i#2 main::i#1 ]
+reg byte x [ main::j#2 main::j#1 ]