X-Git-Url: http://svarog.pmf.uns.ac.rs/gitweb/?p=mjc2wsl.git;a=blobdiff_plain;f=src%2Fmjc2wsl.java;h=4b231aab04e6d3fdb2c0d84d63aff4713b0f9f5a;hp=16b0e3766a5c721e008097b7f223841b105fae4b;hb=a2bd7f29ece868c30e34f85e4e474ad947794642;hpb=29066990720e2feaa5ed90608a9a6a7ea983f7a7;ds=inline

diff --git a/src/mjc2wsl.java b/src/mjc2wsl.java
index 16b0e37..4b231aa 100644
--- a/src/mjc2wsl.java
+++ b/src/mjc2wsl.java
@@ -120,6 +120,7 @@ public class mjc2wsl{
 		ret.append("VAR < tempa := 0, tempb := 0, tempres :=0,\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	mjvm_estack := < >, mjvm_mstack := < >, "); 
 		ret.append("\n	mjvm_fp := 0, mjvm_sp := 0,");
 		ret.append("\n	t_e_m_p := 0 > :");
@@ -215,6 +216,14 @@ public class mjc2wsl{
 			return "mjvm_statics[" + (i+1)+"]";
 	}
 	
+	private String genArray(int i){
+			return "mjvm_arrays["+ i +"]";
+	}
+	
+	private String genArray(String i){
+			return "mjvm_arrays["+ i+"]";
+	}
+	
 	/**
 	 * Creates a WSL comment with care to quote chars.
 	 */
@@ -419,21 +428,65 @@ public class mjc2wsl{
 			
 			case inc  : {
 				int b1 = get(), b2 = get();
-				prl(loc(b1)+" := " +loc(b1)+" + "+b2);
+				prl(loc(b1)+" := " +loc(b1)+" + "+b2+";");
 				break;
 			}
 			//TODO new_ newarray
-			case new_ :
-					get();//needs a short, but a byte will be taken bellow as well
-			case newarray :{
+			case new_ :{
 					prl(createComment("memory allocation not processed properly", C_ERR));
 					message("memory allocation  not processed properly", M_ERR);
-					get();
+					get2();
 					break;
 			}
-			//TODO aload, asstore, baload, bastore
-			//TODO arraylength
-			//TODO dup, dup2
+			case newarray :{
+					get();// 0 - bytes, 1 - words; ignore for now
+					//TODO take into consideration 0/1
+					prl(getTop());
+					prl("mjvm_arrays := mjvm_arrays ++ < ARRAY(tempa,0) >;");
+					prl(cmdToEStack("LENGTH(mjvm_arrays)"));
+					break;
+			}
+			
+			case aload:
+			case baload:{
+				prl(getTopTwo());
+				prl(cmdToEStack(genArray("tempb")+"[tempa+1]"));
+				break;
+			}
+			case astore:
+			case bastore:{
+				prl(cmdFromEStack("tempres"));
+				prl(getTopTwo());
+				//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 := "+genArray("tempb")+" > :");
+				prl("tempArray[tempa+1]:=tempres ENDVAR;");
+				break;
+			}
+			case arraylength :{
+				prl(getTop());
+				//TODO make an array length function of some sort!
+				prl(createComment("array length not known - LENGTH not aplicable to arrays",C_ERR));
+				message("array length not known - LENGTH not aplicable to arrays",M_ERR);
+				prl(createComment("put 1 on the stack for consistency",C_SPEC));
+				prl(cmdToEStack(1));
+				break;
+			}
+			
+			case dup : {
+					prl(getTop());
+					prl(cmdToEStack("tempa"));
+					prl(cmdToEStack("tempa"));
+					break;					
+			}
+			case dup2 : {
+					prl(getTopTwo());
+					prl(cmdToEStack("tempb"));
+					prl(cmdToEStack("tempa"));
+					prl(cmdToEStack("tempb"));
+					prl(cmdToEStack("tempa"));
+					break;					
+			}
 			
 			case pop : {
 					prl(cmdPopEStack());
@@ -465,9 +518,9 @@ public class mjc2wsl{
 			}
 
 			case return_: {
-				prl("IF EMPTY?(mjvm_mstack) THEN CALL Z FI");
-				//else we let things return		
-				prl("END b"+counter+" ==");
+				//we let the actions return
+				// there is nothing to clean up
+				prl("SKIP END b"+counter+" ==");
 				break;
 			}
 			case enter: {
@@ -486,24 +539,24 @@ public class mjc2wsl{
 			}
 
 			// read, print
-			case read:{
+			case bread:{
 				//TODO make it a char for read
 				message("char is read like a number", M_WAR);
 				prl(createComment("char is read like a number",C_SPEC));
 			}
-			case bread: {
+			case read: {
 				prl("tempa := @String_To_Num(@Read_Line(Standard_Input_Port));");
 				prl(cmdToEStack("tempa"));
 				break;
 			}
 
 			// the prints
-			case print:{
+			case bprint:{
 				// TODO need to make it a char on print
 				message("chars will be printed as number codes", M_WAR);
 				prl(createComment("char will be printed as a number code",C_SPEC));
 			}
-			case bprint: {
+			case print: {
 				// TODO printing numbers needs different lengths of spacing
 				prl(getTopTwo());
 				pr(createComment("print spacing",C_SPEC));