gitweb on Svarog

projekti pod git sistemom za održavanje verzija -- projects under the git version control system
mjc2wsl - directives to print Estack on each change
[mjc2wsl.git] / src / mjc2wsl.java
index 76d225b..886cd7d 100644 (file)
@@ -33,7 +33,8 @@ public class mjc2wsl{
        }
        
        private boolean addPauseAfterEachAddress=false, 
-               addPrintForEachAddress = false;
+               addPrintForEachAddress = false,
+               genPrintEStackOnChange = false;
        
        /** Constant used for marking a regular comment from the original file */
        public static final char C_REG = ' ';
@@ -114,7 +115,7 @@ public class mjc2wsl{
 
                ret.append("VAR < tempa := 0, tempb := 0, tempres :=0,\n\t");
                for (int i = 0; i <= 3; i++)
-                       ret.append("mjvm_loc" + i + " := 0, ");
+                       ret.append(loc(i) + " := 0, ");
                ret.append("\n  mjvm_estack := < >, mjvm_mstack := < >, "); 
                ret.append("\n  mjvm_fp := 0, mjvm_sp := 0,");
                ret.append("\n  t_e_m_p := 0 > :");
@@ -226,15 +227,21 @@ public class mjc2wsl{
        //Expression stack
        
        private String cmdToEStack(int i) {
-               return "mjvm_estack := <" + i + " > ++ mjvm_estack;";
+               String res = "mjvm_estack := <" + i + " > ++ mjvm_estack;";
+               if (genPrintEStackOnChange) res +="PRINT(\"eStack\",mjvm_estack);";
+               return res;
        }
 
        private String cmdToEStack(String i) {
-               return "mjvm_estack := <" + i + " > ++ mjvm_estack;";
+               String res = "mjvm_estack := <" + i + " > ++ mjvm_estack;";
+               if (genPrintEStackOnChange) res +="PRINT(\"eStack\",mjvm_estack);";
+               return res;
        }
 
        private String cmdFromEStack(String st) {
-               return st + " := HEAD(mjvm_estack); mjvm_estack := TAIL(mjvm_estack);";
+               String res = st + " := HEAD(mjvm_estack); mjvm_estack := TAIL(mjvm_estack);";
+               if (genPrintEStackOnChange) res +="PRINT(\"eStack\",mjvm_estack);";
+               return res;
        }
        
        private String getTopTwo(){
@@ -270,6 +277,10 @@ public class mjc2wsl{
                        }
                        throw new Exception("Wrong opcode for a relation");
        }
+       
+       private boolean isJumpCode(int opcode) {
+                       return (opcode>=jmp) && (opcode<=jge);
+       }
 
        public void convertStream(InputStream ins) throws Exception{
                mainIn = ins;
@@ -389,6 +400,7 @@ public class mjc2wsl{
                                prl(getTopTwo());
                                prl("IF tempb "+ getRelationFor(op)
                                                +" tempa THEN CALL a" + (counter + get2())
+                                               +" ELSE CALL a" + (counter+1)
                                                + " FI;");
                                break;
                        }
@@ -410,8 +422,11 @@ public class mjc2wsl{
                        case enter: {
                                prl(createComment("enter not fully procesed yet"));
                                message("enter not fully procesed yet", M_WAR);
+                               int parameters = get();
+                               
                                get();
-                               get();
+                               for (int i = parameters-1; i >= 0; i--)
+                                               prl(cmdFromEStack(loc(i)));
                                break;
                        }
                        case exit: {
@@ -441,10 +456,7 @@ public class mjc2wsl{
                        }
 
                        case trap: {
-                               // TODO finish trap
-                               prl(createComment("trap not fully procesed yet"));
-                               message("trap not fully procesed yet", M_WAR);
-                               get();
+                               prl("ERROR(\"Runtime error: trap("+get()+")\");");
                                break;
                        }
                        
@@ -455,9 +467,13 @@ public class mjc2wsl{
                                break;
                        }
 
+                       boolean wasJump = isJumpCode(op);
                        op = get();
                        if (op >= 0)
-                               prl("CALL a" + counter + " END");
+                               if (wasJump)
+                                               prl("SKIP END");
+                               else
+                                               prl("CALL a" + counter + " END");
                }
                prl("CALL Z;\nSKIP END\nENDACTIONS;\n");
                prl(getStandardEnd());
@@ -507,16 +523,21 @@ public class mjc2wsl{
                                                originalInComments = args[i].charAt(4) == '+';
                                        else
                                                originalInComments = true;
-                               } else if (args[i].startsWith("--screen")) {
+                               } else if (args[i].compareTo("--screen") == 0) {
                                        out = new PrintWriter(System.out);
                                } else if (args[i].compareTo("-d") == 0) {
                                        printLevel = M_DEB;//print debug info
                                } else if (args[i].compareTo("-v") == 0) {
                                        printLevel = M_WAR;//print warnings
                                } else if (args[i].compareTo("-q") == 0) {
-                                       printLevel = M_ERR+1;//no printing
-                               }
-                               i++;
+                                       printLevel = M_ERR+1;//no printing                              
+                               } else if (args[i].compareToIgnoreCase("--genEStackPrint") == 0) {
+                                       genPrintEStackOnChange = true;
+                               } else if (args[i].compareToIgnoreCase("--genAll") == 0) {
+                                       genPrintEStackOnChange = true;
+                                       addPrintForEachAddress = true;
+                                       addPauseAfterEachAddress = true;
+                               }i++;
                        }
 
                        if (i >= args.length) {
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