Add exception cause decoding with description

me-no-dev · me-no-dev · commit 3913ab3bb94f · 2016-11-17T15:33:16.000+02:00
diff --git a/src/EspExceptionDecoder.java b/src/EspExceptionDecoder.java
@@ -55,11 +55,43 @@ public class EspExceptionDecoder implements Tool, DocumentListener {
   File tool;
   File elf;
 
+  private static String[] exceptions = {
+    "Illegal instruction",
+    "SYSCALL instruction",
+    "InstructionFetchError: Processor internal physical address or data error during instruction fetch",
+    "LoadStoreError: Processor internal physical address or data error during load or store",
+    "Level1Interrupt: Level-1 interrupt as indicated by set level-1 bits in the INTERRUPT register",
+    "Alloca: MOVSP instruction, if caller's registers are not in the register file",
+    "IntegerDivideByZero: QUOS, QUOU, REMS, or REMU divisor operand is zero",
+    "reserved",
+    "Privileged: Attempt to execute a privileged operation when CRING ? 0",
+    "LoadStoreAlignmentCause: Load or store to an unaligned address",
+    "reserved",
+    "reserved",
+    "InstrPIFDataError: PIF data error during instruction fetch",
+    "LoadStorePIFDataError: Synchronous PIF data error during LoadStore access",
+    "InstrPIFAddrError: PIF address error during instruction fetch",
+    "LoadStorePIFAddrError: Synchronous PIF address error during LoadStore access",
+    "InstTLBMiss: Error during Instruction TLB refill",
+    "InstTLBMultiHit: Multiple instruction TLB entries matched",
+    "InstFetchPrivilege: An instruction fetch referenced a virtual address at a ring level less than CRING",
+    "reserved",
+    "InstFetchProhibited: An instruction fetch referenced a page mapped with an attribute that does not permit instruction fetch",
+    "reserved",
+    "reserved",
+    "reserved",
+    "LoadStoreTLBMiss: Error during TLB refill for a load or store",
+    "LoadStoreTLBMultiHit: Multiple TLB entries matched for a load or store",
+    "LoadStorePrivilege: A load or store referenced a virtual address at a ring level less than CRING",
+    "reserved",
+    "LoadProhibited: A load referenced a page mapped with an attribute that does not permit loads",
+    "StoreProhibited: A store referenced a page mapped with an attribute that does not permit stores"
+  };
+  
   public void init(Editor editor) {
     this.editor = editor;
   }
 
-
   public String getMenuTitle() {
     return "ESP Exception Decoder";
   }
@@ -312,6 +344,19 @@ public void run() {
     createAndUpload();
   }
 
+  private void parseException(){
+    String content = inputArea.getText();
+    Pattern p = Pattern.compile("Exception \\(([0-9]*)\\):");
+    Matcher m = p.matcher(content);
+    if(m.find()){
+      int exception = Integer.parseInt(m.group(1));
+      if(exception < 0 || exception > 29){
+        return;
+      }
+      outputText += "<b><font color=red>Exception "+exception+": "+exceptions[exception]+"</font></b>\n";
+    }
+  }
+
   private void parseText(){
     String content = inputArea.getText();
     Pattern p = Pattern.compile("40[0-2](\\d|[a-f]){5}\\b");
@@ -333,25 +378,29 @@ private void parseText(){
     while(m.find()) {
       command[i++] = content.substring(m.start(), m.end());
     }
-    outputText = "<html><pre><i>Decoding "+count+" results</i>\n";
+    outputText += "<i>Decoding "+count+" results</i>\n";
     sysExec(command);
   }
 
+  private void runParser(){
+    outputText = "<html><pre>\n";
+    parseException();
+    parseText();
+  }
+
   private class CommitAction extends AbstractAction {
-      public void actionPerformed(ActionEvent ev) {
-          parseText();
-      }
+    public void actionPerformed(ActionEvent ev) {
+      runParser();
+    }
   }
 
   public void changedUpdate(DocumentEvent ev) {
-      //parseText();
   }
 
   public void removeUpdate(DocumentEvent ev) {
-      //parseText();
   }
 
   public void insertUpdate(DocumentEvent ev) {
-    parseText();
+    runParser();
   }
 }
