X-Git-Url: http://svarog.pmf.uns.ac.rs/gitweb/?p=mjc2wsl.git;a=blobdiff_plain;f=src%2Fmjc2wsl.java;h=14cc9e415809c6cc591e4b4bc8e187e72d1e282e;hp=97e61ac50c8c94143cb4fa135e324b6d0382637f;hb=c71486b667051ba56ee13c49f887822b61572748;hpb=dc0bf39019b6d79c81a03d706b735af046950f92

diff --git a/src/mjc2wsl.java b/src/mjc2wsl.java
index 97e61ac..14cc9e4 100644
--- a/src/mjc2wsl.java
+++ b/src/mjc2wsl.java
@@ -28,7 +28,7 @@ import java.util.*;
  * @author Doni Pracner, http://perun.dmi.rs/pracner http://quemaster.com
  */
 public class mjc2wsl{
-	public static String versionN = "0.1.6";
+	public static String versionN = "0.1.7";
 
 	private TransMessages messages = new TransMessages();
 
@@ -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 = ' ';
 	/**
@@ -192,17 +194,16 @@ 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");
-		ret.append("mjvm_locals := ARRAY(1,0), ");
-		ret.append("\n\tmjvm_statics := ARRAY("+numWords+",0), ");
-		ret.append("\n\tmjvm_arrays := < >, ");
-		ret.append("\n\tmjvm_objects := < >, ");
-		ret.append("\n	mjvm_estack := < >, mjvm_mstack := < > > : "); 
+		ret.append("\nBEGIN");
+		ret.append("\nVAR <\n\t");
+		ret.append("mjvm_locals := ARRAY(1,0),");
+		ret.append("\n\tmjvm_statics := ARRAY("+numWords+",0),");
+		ret.append("\n\tmjvm_arrays := < >,");
+		ret.append("\n\tmjvm_flag_jump := 0,");
+		ret.append("\n\tmjvm_objects := < >,");
+		ret.append("\n\tmjvm_estack := < >, mjvm_mstack := < > > :");
 
 		return ret.toString();
 	}
@@ -216,31 +217,29 @@ public class mjc2wsl{
 	}
 
 	public String createStandardEnd(){
-		StringBuilder ret = new StringBuilder("SKIP\nENDVAR");
+		StringBuilder ret = new StringBuilder("SKIP\nENDVAR\n");
 		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(\"\");");
-		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\n");
+		ret.append("\nEND");
 		return ret.toString();
 	}
 
@@ -392,9 +391,9 @@ public class mjc2wsl{
 		prl("SKIP;\n ACTIONS a" + (14 + mainAdr) + " :");
 		int op = get();
 		while (op >= 0) {
+			prl(" a" + counter + " ==");
 			if (originalInComments)
 				prl(createComment(describeOpCode(op), C_OC));
-			prl(" a" + counter + " == ");
 			if (genPrintForEachAddress) {
 				prl("PRINT(\"a" + counter + "\");");
 				if (genPauseAfterEachAddress)
@@ -441,17 +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;
 			}
 
@@ -460,6 +460,11 @@ public class mjc2wsl{
 				break;
 			}
 
+			case const_m1: {
+				prl(createToEStack(-1));
+				break;
+			}
+
 			case const_0:
 			case const_1:
 			case const_2:
@@ -522,19 +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;
 			}
 
@@ -555,47 +564,56 @@ 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:
 			case bastore: {
+				prl(createStartVar("tempa", "tempb", "tempres"));
 				prl(createFromEStack("tempres"));
 				prl(createTopTwoEStack());
-				// we need to use a temparray as a pointer, WSL
-				// otherwise tries to access it as a list of lists and fails
-				prl("VAR < tempArray := " + createArray("tempb") + " > :");
-				prl("tempArray[tempa+1]:=tempres ENDVAR;");
+				prl("mjvm_arrays[tempb][tempa+1]:=tempres;");
+				prl(createEndVar());
 				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;
 			}
 
@@ -617,10 +635,15 @@ public class mjc2wsl{
 			case jge: {
 				prl(createStartVar("tempa", "tempb"));
 				prl(createTopTwoEStack());
-				prl("IF tempb " + getRelationFor(op) + " tempa THEN CALL a"
-						+ (counter + get2()) + " ELSE CALL a" + (counter + 1)
+				prl("IF tempb " + getRelationFor(op) 
+						+ " tempa THEN mjvm_flag_jump := 1"
+						+ " ELSE mjvm_flag_jump := 0" 
 						+ " FI;");
 				prl(createEndVar());
+				prl("IF mjvm_flag_jump = 1 THEN CALL a"
+						+ (counter + get2()) 
+						+ " ELSE CALL a" + (counter + 1)
+						+ " FI;");
 				
 				break;
 			}
@@ -669,7 +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, MAX(0,tempa-1))), @List_To_String(< tempb >));");
+				} else
+					prl("Print_MJ_CHAR(tempb,tempa);");
 				prl(createEndVar());
 				break;
 			}
@@ -678,7 +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, MAX(0, tempa-1))), tempb);");
+				}
+				else
+					prl("Print_MJ(tempb,tempa);");
 				prl(createEndVar());
 				break;
 			}
@@ -703,7 +735,7 @@ public class mjc2wsl{
 					prl("CALL a" + counter + "\n END");
 		}
 		prl("SKIP\n END\nENDACTIONS;\n");
-		prl(createStandardEnd());
+		pr(createStandardEnd());
 	}
 
 	public void convertFile(File f) {
@@ -755,6 +787,10 @@ public class mjc2wsl{
 	public void printHelpDirectives(){
 		System.out.println("Alternatives for code generation:");
 		System.out.println("  --genPopPush generate POP/PUSH instead of TAIL/HEAD");
+		System.out.println("  --genHeadTail generate TAIL/HEAD instead of POP/PUSH ");
+		System.out.println();
+		System.out.println("  --genInlinePrint generate prints directly instead of procedure calls");
+		System.out.println("  --genProcedurePrint generate prints as custom procedure calls");
 	}
 
 	public void printHelpHelp() {
@@ -827,6 +863,12 @@ public class mjc2wsl{
 					genPauseAfterEachAddress = true;
 				} else if (args[i].compareToIgnoreCase("--genPopPush") == 0) {
 					genPopPush = true;
+				} else if (args[i].compareToIgnoreCase("--genInlinePrint") == 0) {
+					genInlinePrint = true;
+				} else if (args[i].compareToIgnoreCase("--genHeadTail") == 0) {
+					genPopPush = false;
+				} else if (args[i].compareToIgnoreCase("--genProcedurePrint") == 0) {
+					genInlinePrint = false;
 				}
 				i++;
 			}