mjc2wsl - 'mjvm' prefixes added to variables that represent the internal workings...

[mjc2wsl.git] / src / mjc2wsl.java

diff --git a/src/mjc2wsl.java b/src/mjc2wsl.java
index b7c572b..86743cf 100644 (file)
--- a/src/mjc2wsl.java
+++ b/src/mjc2wsl.java
@@ -109,10 +109,12 @@ public class mjc2wsl{
                        "C:\" This file automatically converted from microjava bytecode\";\n"
                        +"C:\" with mjc2wsl v "+versionN+"\";\n");
 
-               ret.append("VAR < tempa := 0, tempb := 0, tempres :=0,\n");
+               ret.append("VAR < tempa := 0, tempb := 0, tempres :=0,\n\t");
                for (int i = 0; i <= 3; i++)
-                       ret.append("loc" + i + " := 0, ");
-               ret.append("\n  estack := < >, t_e_m_p := 0 > :");
+                       ret.append("mjvm_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 > :");
 
                return ret.toString();
        }
@@ -165,7 +167,7 @@ public class mjc2wsl{
        }
        
        private String loc(int i){
-               return "loc" + i;
+               return "mjvm_loc" + i;
        }
        
        /**
@@ -186,16 +188,18 @@ public class mjc2wsl{
                return "C:\"" + type + str.replace("\"", "''") + "\";";
        }
 
+       //Expression stack
+       
        private String cmdToEStack(int i) {
-               return "estack := <" + i + " > ++ estack;";
+               return "mjvm_estack := <" + i + " > ++ mjvm_estack;";
        }
 
        private String cmdToEStack(String i) {
-               return "estack := <" + i + " > ++ estack;";
+               return "mjvm_estack := <" + i + " > ++ mjvm_estack;";
        }
 
        private String cmdFromEStack(String st) {
-               return st + " := HEAD(estack); estack := TAIL(estack);";
+               return st + " := HEAD(mjvm_estack); mjvm_estack := TAIL(mjvm_estack);";
        }
        
        private String getTopTwo(){
@@ -206,6 +210,20 @@ public class mjc2wsl{
                return cmdFromEStack("tempa");
        }
        
+       //Method stack
+       
+       private String cmdToMStack(int i) {
+               return "mjvm_mstack := <" + i + " > ++ mjvm_mstack;";
+       }
+
+       private String cmdToMStack(String i) {
+               return "mjvm_mstack := <" + i + " > ++ mjvm_mstack;";
+       }
+
+       private String cmdFromMStack(String st) {
+               return st + " := HEAD(mjvm_mstack); mjvm_mstack := TAIL(mjvm_mstack);";
+       }
+       
        private String getRelationFor(int opcode) throws Exception {
                        switch (opcode) {
                                        case jeq: return "=";
@@ -330,7 +348,11 @@ public class mjc2wsl{
                                break;
                        }
 
-                       //TODO call
+                       case call: {
+                               prl(cmdToMStack(counter+2));
+                               prl("CALL a" + (counter + get2()) + ";");
+                               break;
+                       }
 
                        case return_: {
                                prl(createComment("return not fully procesed yet"));