gitweb on Svarog

projekti pod git sistemom za održavanje verzija -- projects under the git version control system
added --genInlinePrint switch to not make a procedure, but print directly
[mjc2wsl.git] / src / mjc2wsl.java
index 18551d1..d52dcfe 100644 (file)
@@ -38,6 +38,8 @@ public class mjc2wsl{
                
        private boolean genPopPush=false;
        
+       private boolean genInlinePrint=false;
+
        /** Constant used for marking a regular comment from the original file */
        public static final char C_REG = ' ';
        /**
@@ -192,9 +194,7 @@ public class mjc2wsl{
        public String createStandardStart(int numWords){
                StringBuilder ret = new StringBuilder(
                        "C:\" This file automatically converted from microjava bytecode\";\n"
-                       +"C:\" with mjc2wsl v "+versionN+"\";\n\n");
-
-               ret.append(createAsciiString());
+                       +"C:\" with mjc2wsl v "+versionN+"\";\n");
 
                ret.append("\nBEGIN");
                ret.append("\nVAR <\n\t");
@@ -221,25 +221,23 @@ public class mjc2wsl{
                ret.append("\nWHERE\n");
                
                ret.append("\nFUNCT CHR(num) ==:\n");
-               ret.append("\tSUBSTR(ascii,num,1)\n");
+               ret.append("\t@List_To_String(< num >)\n");
                ret.append("END\n");
 
-               ret.append("\nPROC Print_MJ(val, format VAR)==\n");
-               ret.append(createComment("print spacing", C_SPEC));
-               ret.append("\n\tIF format>1 THEN\n\t\tFOR i:=2 TO ");
-               ret.append("format STEP 1 DO PRINFLUSH(\" \") OD\n");
-               ret.append("\tFI;\n\tPRINFLUSH(val)\nEND\n");
-
-               ret.append("\nPROC Print_MJ_CHAR(val, format VAR)==\n");
-               ret.append(createComment("print spacing", C_SPEC));
-               ret.append("\n\tIF val=10 OR val=13 THEN\n");
-               ret.append("\t\tPRINT(\"\");\n");
-               ret.append("\tELSE\n");
-               ret.append("\t\tIF format>1 THEN\n\t\t\tFOR i:=2 TO ");
-               ret.append("format STEP 1 DO PRINFLUSH(\" \") OD\n");
-               ret.append("\t\tFI;\n\t\tPRINFLUSH(CHR(val))\n");
-               ret.append("\tFI\n");
-               ret.append("END\n");
+               if (!genInlinePrint) {
+                               ret.append("\nPROC Print_MJ(val, format VAR)==\n");
+                               ret.append(createComment("print spacing", C_SPEC));
+                               ret.append("\n\tIF format>1 THEN\n\t\tFOR i:=2 TO ");
+                               ret.append("format STEP 1 DO PRINFLUSH(\" \") OD\n");
+                               ret.append("\tFI;\n\tPRINFLUSH(val)\nEND\n");
+
+                               ret.append("\nPROC Print_MJ_CHAR(val, format VAR)==\n");
+                               ret.append(createComment("print spacing", C_SPEC));
+                               ret.append("\n\tIF format>1 THEN\n\t\tFOR i:=2 TO ");
+                               ret.append("format STEP 1 DO PRINFLUSH(\" \") OD\n");
+                               ret.append("\tFI;\n\tPRINFLUSH(CHR(val))\n");
+                               ret.append("END\n");
+               }
 
                ret.append("\nEND");
                return ret.toString();
@@ -442,17 +440,18 @@ public class mjc2wsl{
 
                        case getfield: {
                                int f = get2();
+                               prl(createStartVar("tempa"));
                                prl(createTopEStack());
                                prl(createToEStack(createObject("tempa") + "[" + (f + 1) + "]"));
+                               prl(createEndVar());
                                break;
                        }
                        case putfield: {
                                int f = get2();
-                               // we need to use a temparray as a pointer, WSL
-                               // otherwise tries to access it as a list of lists and fails
-                               prl(createTopTwoEStack());
-                               prl("VAR < tempArray := " + createObject("tempb") + " > :");
-                               prl("tempArray[" + (f + 1) + "]:=tempa ENDVAR;");
+                               prl(createStartVar("tempa", "tempb"));
+                               prl(createTopTwoEStack());                              
+                               prl(createObject("tempb") + "[" + (f + 1) + "]:=tempa;");
+                               prl(createEndVar());
                                break;
                        }
 
@@ -461,6 +460,11 @@ public class mjc2wsl{
                                break;
                        }
 
+                       case const_m1: {
+                               prl(createToEStack(-1));
+                               break;
+                       }
+
                        case const_0:
                        case const_1:
                        case const_2:
@@ -523,19 +527,23 @@ public class mjc2wsl{
                        }
 
                        case shl: {
+                               prl(createStartVar("tempa", "tempb"));
                                prl(createTopTwoEStack());
                                prl("VAR <tempres :=tempb, i:=1 >:");
                                prl("\tFOR i:=1 TO tempa STEP 1 DO tempres := tempres * 2 OD;");
                                prl(createToEStack("tempres"));
                                prl("ENDVAR;");
+                               prl(createEndVar());
                                break;
                        }
                        case shr: {
+                               prl(createStartVar("tempa", "tempb"));
                                prl(createTopTwoEStack());
                                prl("VAR <tempres :=tempb, i:=1 >:");
                                prl("\tFOR i:=1 TO tempa STEP 1 DO tempres := tempres DIV 2 OD;");
                                prl(createToEStack("tempres"));
                                prl("ENDVAR;");
+                               prl(createEndVar());
                                break;
                        }
 
@@ -556,16 +564,20 @@ public class mjc2wsl{
                        case newarray: {
                                get();// 0 - bytes, 1 - words; ignore for now
                                // TODO take into consideration 0/1
+                               prl(createStartVar("tempa"));
                                prl(createTopEStack());
                                prl("mjvm_arrays := mjvm_arrays ++ < ARRAY(tempa,0) >;");
                                prl(createToEStack("LENGTH(mjvm_arrays)"));
+                               prl(createEndVar());
                                break;
                        }
 
                        case aload:
                        case baload: {
+                               prl(createStartVar("tempa", "tempb"));
                                prl(createTopTwoEStack());
                                prl(createToEStack(createArray("tempb") + "[tempa+1]"));
+                               prl(createEndVar());
                                break;
                        }
                        case astore:
@@ -578,24 +590,30 @@ public class mjc2wsl{
                                break;
                        }
                        case arraylength: {
+                               prl(createStartVar("tempa", "tempb"));
                                prl(createTopEStack());
                                prl("tempb := LENGTH("+ createArray("tempa") + ");");
                                prl(createToEStack("tempb"));
+                               prl(createEndVar());
                                break;
                        }
 
                        case dup: {
+                               prl(createStartVar("tempa", "tempb"));
                                prl(createTopEStack());
                                prl(createToEStack("tempa"));
                                prl(createToEStack("tempa"));
+                               prl(createEndVar());
                                break;
                        }
                        case dup2: {
+                               prl(createStartVar("tempa", "tempb"));
                                prl(createTopTwoEStack());
                                prl(createToEStack("tempb"));
                                prl(createToEStack("tempa"));
                                prl(createToEStack("tempb"));
                                prl(createToEStack("tempa"));
+                               prl(createEndVar());
                                break;
                        }
 
@@ -674,7 +692,11 @@ public class mjc2wsl{
                        case bprint: {
                                prl(createStartVar("tempa", "tempb"));
                                prl(createTopTwoEStack());
-                               prl("Print_MJ_CHAR(tempb,tempa);");
+                               if (genInlinePrint){
+                                       prl(createComment("print spacing and transformation",C_SPEC));
+                                       prl("PRINFLUSH(SUBSTR(\"          \", 0, MIN(10, tempa - 1)), @List_To_String(< tempb >));");
+                               } else
+                                       prl("Print_MJ_CHAR(tempb,tempa);");
                                prl(createEndVar());
                                break;
                        }
@@ -683,7 +705,12 @@ public class mjc2wsl{
                                prl(createStartVar("tempa", "tempb"));
 
                                prl(createTopTwoEStack());
-                               prl("Print_MJ(tempb,tempa);");
+                               if (genInlinePrint){
+                                       prl(createComment("print spacing",C_SPEC));
+                                       prl("PRINFLUSH(SUBSTR(\"          \", 0, MIN(10, tempa - 1)), tempb);");
+                               }
+                               else
+                                       prl("Print_MJ(tempb,tempa);");
                                prl(createEndVar());
                                break;
                        }
@@ -832,6 +859,8 @@ public class mjc2wsl{
                                        genPauseAfterEachAddress = true;
                                } else if (args[i].compareToIgnoreCase("--genPopPush") == 0) {
                                        genPopPush = true;
+                               } else if (args[i].compareToIgnoreCase("--genInlinePrint") == 0) {
+                                       genInlinePrint = true;
                                }
                                i++;
                        }
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