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diff --git a/src/mjc2wsl.java b/src/mjc2wsl.java
--- a/src/mjc2wsl.java
+++ b/src/mjc2wsl.java
+/*
+ Copyright (C) 2014 Doni Pracner
+
+ This file is part of mjc2wsl.
+
+ mjc2wsl is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ mjc2wsl is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with mjc2wsl. If not, see <http://www.gnu.org/licenses/>.
+*/
import java.io.*;
import java.util.*;
* @author Doni Pracner, http://perun.dmi.rs/pracner http://quemaster.com
*/
public class mjc2wsl{
- public static String versionN = "0.1.4";
+ public static String versionN = "0.1.5";
+
+ private TransMessages messages = new TransMessages();
- public static final int M_ERR = 2, M_WAR = 1, M_DEB = 0;
-
- private int printLevel = M_ERR;
-
- private int[] messageCounters = new int[M_ERR+1];
-
- private void message(String mes, int level){
- if (level>=printLevel)
- System.out.println(mes);
- messageCounters[level]++;
- }
-
- private void printMessageCounters(){
- printMessageCounters(System.out);
- }
-
- private void printMessageCounters(PrintStream out){
- out.println("total errors:"+messageCounters[M_ERR]+" warnings:"+messageCounters[M_WAR]);
- }
-
private boolean genPauseAfterEachAddress=false,
genPrintForEachAddress = false,
genPrintEStackOnChange = false;
bprint = 56,
trap = 57;
- public String getStandardStart(){
- return getStandardStart(10);
- }
-
- public String getStandardStart(int numWords){
- StringBuilder ret = new StringBuilder(
- "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\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("\n mjvm_fp := 0, mjvm_sp := 0,");
- ret.append("\n t_e_m_p := 0 > :");
-
- return ret.toString();
- }
-
- public String getStandardEnd(){
- return "SKIP\nENDVAR";
- }
-
private boolean originalInComments = false;
private HashMap<Integer,String> opMap = null;
return (get2() << 16) + (get2() << 16 >>> 16);
}
- private String loc(int i) {
+ public String createStandardStart(){
+ return createStandardStart(10);
+ }
+
+ public String createStandardStart(int numWords){
+ StringBuilder ret = new StringBuilder(
+ "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\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("\n mjvm_fp := 0, mjvm_sp := 0,");
+ ret.append("\n t_e_m_p := 0 > :");
+
+ return ret.toString();
+ }
+
+ public String createStandardEnd(){
+ return "SKIP\nENDVAR";
+ }
+
+ private String createLocal(int i) {
// arrays start at 1 in WSL, so we need an offset
return "mjvm_locals[" + (i + 1) + "]";
}
- private String genStatic(int i) {
+ private String createStatic(int i) {
return "mjvm_statics[" + (i + 1) + "]";
}
- private String genArray(int i) {
+ private String createArray(int i) {
return "mjvm_arrays[" + i + "]";
}
- private String genArray(String i) {
+ private String createArray(String i) {
return "mjvm_arrays[" + i + "]";
}
- private String genObject(String i) {
+ private String createObject(String i) {
return "mjvm_objects[" + i + "]";
}
//Expression stack
- private String cmdToEStack(int i) {
+ private String createToEStack(int i) {
String res = "mjvm_estack := <" + i + " > ++ mjvm_estack;";
if (genPrintEStackOnChange)
res += "PRINT(\"eStack\",mjvm_estack);";
return res;
}
- private String cmdToEStack(String i) {
+ private String createToEStack(String i) {
String res = "mjvm_estack := <" + i + " > ++ mjvm_estack;";
if (genPrintEStackOnChange)
res += "PRINT(\"eStack\",mjvm_estack);";
return res;
}
- private String cmdFromEStack(String st) {
+ private String createFromEStack(String st) {
String res = st
+ " := HEAD(mjvm_estack); mjvm_estack := TAIL(mjvm_estack);";
if (genPrintEStackOnChange)
return res;
}
- private String cmdPopEStack() {
+ private String createPopEStack() {
String res = "mjvm_estack := TAIL(mjvm_estack);";
if (genPrintEStackOnChange)
res += "PRINT(\"eStack\",mjvm_estack);";
return res;
}
- private String getTopTwo() {
- return cmdFromEStack("tempa") + "\n" + cmdFromEStack("tempb");
+ private String createTopTwoEStack() {
+ return createFromEStack("tempa") + "\n" + createFromEStack("tempb");
}
- private String getTop() {
- return cmdFromEStack("tempa");
+ private String createTopEStack() {
+ return createFromEStack("tempa");
}
//Method stack
- private String cmdToMStack(int i) {
+ private String createToMStack(int i) {
return "mjvm_mstack := <" + i + " > ++ mjvm_mstack;";
}
- private String cmdToMStack(String i) {
+ private String createToMStack(String i) {
return "mjvm_mstack := <" + i + " > ++ mjvm_mstack;";
}
- private String cmdFromMStack(String st) {
+ private String createFromMStack(String st) {
return st + " := HEAD(mjvm_mstack); mjvm_mstack := TAIL(mjvm_mstack);";
}
int numberOfWords = get4();
int mainAdr = get4();
- prl(getStandardStart(numberOfWords));
+ prl(createStandardStart(numberOfWords));
prl("SKIP;\n ACTIONS A_S_start:\n A_S_start == CALL a" + (14 + mainAdr)
+ " END");
int op = get();
}
switch (op) {
case load: {
- prl(cmdToEStack(loc(get())));
+ prl(createToEStack(createLocal(get())));
break;
}
case load_0:
case load_1:
case load_2:
case load_3: {
- prl(cmdToEStack(loc(op - load_0)));
+ prl(createToEStack(createLocal(op - load_0)));
break;
}
case store: {
- prl(cmdFromEStack(loc(get())));
+ prl(createFromEStack(createLocal(get())));
break;
}
case store_0:
case store_1:
case store_2:
case store_3: {
- prl(cmdFromEStack(loc(op - store_0)));
+ prl(createFromEStack(createLocal(op - store_0)));
break;
}
case getstatic: {
- prl(cmdToEStack(genStatic(get2())));
+ prl(createToEStack(createStatic(get2())));
break;
}
case putstatic: {
- prl(cmdFromEStack(genStatic(get2())));
+ prl(createFromEStack(createStatic(get2())));
break;
}
case getfield: {
int f = get2();
- prl(getTop());
- prl(cmdToEStack(genObject("tempa") + "[" + (f + 1) + "]"));
+ prl(createTopEStack());
+ prl(createToEStack(createObject("tempa") + "[" + (f + 1) + "]"));
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(getTopTwo());
- prl("VAR < tempArray := " + genObject("tempb") + " > :");
+ prl(createTopTwoEStack());
+ prl("VAR < tempArray := " + createObject("tempb") + " > :");
prl("tempArray[" + (f + 1) + "]:=tempa ENDVAR;");
break;
}
case const_: {
- prl(cmdToEStack(get4()));
+ prl(createToEStack(get4()));
break;
}
case const_3:
case const_4:
case const_5: {
- prl(cmdToEStack(op - const_0));
+ prl(createToEStack(op - const_0));
break;
}
case add: {
- prl(getTopTwo());
+ prl(createTopTwoEStack());
prl("tempres := tempb + tempa;");
- prl(cmdToEStack("tempres"));
+ prl(createToEStack("tempres"));
break;
}
case sub: {
- prl(getTopTwo());
+ prl(createTopTwoEStack());
prl("tempres := tempb - tempa;");
- prl(cmdToEStack("tempres"));
+ prl(createToEStack("tempres"));
break;
}
case mul: {
- prl(getTopTwo());
+ prl(createTopTwoEStack());
prl("tempres := tempb * tempa;");
- prl(cmdToEStack("tempres"));
+ prl(createToEStack("tempres"));
break;
}
case div: {
- prl(getTopTwo());
+ prl(createTopTwoEStack());
prl("IF tempa = 0 THEN ERROR(\"division by zero\") FI;");
prl("tempres := tempb DIV tempa;");
- prl(cmdToEStack("tempres"));
+ prl(createToEStack("tempres"));
break;
}
case rem: {
- prl(getTopTwo());
+ prl(createTopTwoEStack());
prl("IF tempa = 0 THEN ERROR(\"division by zero\") FI;");
prl("tempres := tempb MOD tempa;");
- prl(cmdToEStack("tempres"));
+ prl(createToEStack("tempres"));
break;
}
case neg: {
- prl(getTop());
- prl(cmdToEStack("-tempa"));
+ prl(createTopEStack());
+ prl(createToEStack("-tempa"));
break;
}
case shl: {
- prl(getTopTwo());
+ prl(createTopTwoEStack());
prl("VAR <tempres :=tempb, i:=1 >:");
prl("\tFOR i:=1 TO tempa STEP 1 DO tempres := tempres * 2 OD;");
- prl(cmdToEStack("tempres"));
+ prl(createToEStack("tempres"));
prl("ENDVAR;");
break;
}
case shr: {
- prl(getTopTwo());
+ prl(createTopTwoEStack());
prl("VAR <tempres :=tempb, i:=1 >:");
prl("\tFOR i:=1 TO tempa STEP 1 DO tempres := tempres DIV 2 OD;");
- prl(cmdToEStack("tempres"));
+ prl(createToEStack("tempres"));
prl("ENDVAR;");
break;
}
case inc: {
int b1 = get(), b2 = get();
- prl(loc(b1) + " := " + loc(b1) + " + " + b2 + ";");
+ prl(createLocal(b1) + " := " + createLocal(b1) + " + " + b2 + ";");
break;
}
// TODO maybe objects and arrays should be in the same list?
prl("mjvm_objects := mjvm_objects ++ < ARRAY(" + size
+ ",0) >;");
- prl(cmdToEStack("LENGTH(mjvm_objects)"));
+ prl(createToEStack("LENGTH(mjvm_objects)"));
break;
}
case newarray: {
get();// 0 - bytes, 1 - words; ignore for now
// TODO take into consideration 0/1
- prl(getTop());
+ prl(createTopEStack());
prl("mjvm_arrays := mjvm_arrays ++ < ARRAY(tempa,0) >;");
- prl(cmdToEStack("LENGTH(mjvm_arrays)"));
+ prl(createToEStack("LENGTH(mjvm_arrays)"));
break;
}
case aload:
case baload: {
- prl(getTopTwo());
- prl(cmdToEStack(genArray("tempb") + "[tempa+1]"));
+ prl(createTopTwoEStack());
+ prl(createToEStack(createArray("tempb") + "[tempa+1]"));
break;
}
case astore:
case bastore: {
- prl(cmdFromEStack("tempres"));
- prl(getTopTwo());
+ 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 := " + genArray("tempb") + " > :");
+ prl("VAR < tempArray := " + createArray("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));
+ prl(createTopEStack());
+ prl("tempb := LENGTH("+ createArray("tempa") + ");");
+ prl(createToEStack("tempb"));
break;
}
case dup: {
- prl(getTop());
- prl(cmdToEStack("tempa"));
- prl(cmdToEStack("tempa"));
+ prl(createTopEStack());
+ prl(createToEStack("tempa"));
+ prl(createToEStack("tempa"));
break;
}
case dup2: {
- prl(getTopTwo());
- prl(cmdToEStack("tempb"));
- prl(cmdToEStack("tempa"));
- prl(cmdToEStack("tempb"));
- prl(cmdToEStack("tempa"));
+ prl(createTopTwoEStack());
+ prl(createToEStack("tempb"));
+ prl(createToEStack("tempa"));
+ prl(createToEStack("tempb"));
+ prl(createToEStack("tempa"));
break;
}
case pop: {
- prl(cmdPopEStack());
+ prl(createPopEStack());
break;
}
case jle:
case jgt:
case jge: {
- prl(getTopTwo());
+ prl(createTopTwoEStack());
prl("IF tempb " + getRelationFor(op) + " tempa THEN CALL a"
+ (counter + get2()) + " ELSE CALL a" + (counter + 1)
+ " FI;");
int parameters = get();
int locals = get();
- prl(cmdToMStack("mjvm_locals"));
+ prl(createToMStack("mjvm_locals"));
prl("mjvm_locals := ARRAY(" + locals + ",0);");
for (int i = parameters - 1; i >= 0; i--)
- prl(cmdFromEStack(loc(i)));
+ prl(createFromEStack(createLocal(i)));
break;
}
case exit: {
- prl(cmdFromMStack("mjvm_locals"));
+ prl(createFromMStack("mjvm_locals"));
break;
}
// read, print
case bread: {
// TODO make it a char for read
- message("char is read like a number", M_WAR);
+ messages.message("char is read like a number", TransMessages.M_WAR);
prl(createComment("char is read like a number", C_SPEC));
}
case read: {
prl("tempa := @String_To_Num(@Read_Line(Standard_Input_Port));");
- prl(cmdToEStack("tempa"));
+ prl(createToEStack("tempa"));
break;
}
// the prints
case bprint: {
// TODO need to make it a char on print
- message("chars will be printed as number codes", M_WAR);
+ messages.message("chars will be printed as number codes", TransMessages.M_WAR);
prl(createComment("char will be printed as a number code",
C_SPEC));
}
case print: {
// TODO printing numbers needs different lengths of spacing
- prl(getTopTwo());
+ prl(createTopTwoEStack());
pr(createComment("print spacing", C_SPEC));
prl("IF tempa>1 THEN FOR i:=2 TO tempa STEP 1 DO PRINFLUSH(\" \") OD FI;");
prl("PRINFLUSH(tempb);");
default:
prl(createComment("unknown op error: " + op, C_ERR));
- message("unknown op error: " + op, M_ERR);
+ messages.message("unknown op error: " + op, TransMessages.M_ERR);
break;
}
prl("CALL a" + counter + " END");
}
prl("CALL Z;\nSKIP END\nENDACTIONS;\n");
- prl(getStandardEnd());
+ prl(createStandardEnd());
}
public void convertFile(File f) {
}
public void printHelp() {
+ printVersion();
+ printUsage();
+ printHelpOutput();
+ printHelpHelp();
+ }
+
+ public void printLongHelp() {
+ printVersion();
+ printUsage();
+ System.out.println();
+ printHelpOutput();
+ System.out.println();
+ printHelpGenerating();
+ System.out.println();
+ printHelpHelp();
+ }
+
+ public void printHelpOutput() {
+ System.out.println("Output options:");
+ System.out.println(" --screen print output to screen");
+ System.out.println(" -o --oc[+-] include original code in comments");
+ System.out.println(" -v verbose, print warning messages");
+ System.out.println(" -q quiet; don't print even the error messages");
+ System.out.println(" -d print detailed debug messages");
+ }
+
+ public void printHelpGenerating() {
+ System.out.println("Options for generating extra code for tracking code execution");
+ System.out.println(" --genEStackPrint generate print for all EStack changes");
+ System.out.println(" --genAddrPrint generate prints after every address of the original code ");
+ System.out.println(" --genAddrPause generate a pause after every address of the original code ");
+ System.out.println(" --genAddr short for --genAddrPrint and --genAddrPause");
+ System.out.println(" --genAll short for applying all code generation");
+ }
+
+ public void printHelpHelp() {
+ System.out.println("Help and info options");
+ System.out.println(" -h basic help");
+ System.out.println(" --help print more detailed help");
+ System.out.println(" --version or -version print version and exit");
+ }
+
+ public void printUsage(){
+ System.out.println("usage:\n\t mjc2wsl {options} filename [outfile]");
+ }
+
+ public void printVersion() {
System.out.println("MicroJava bytecode to WSL converter. v " + versionN
+ ", by Doni Pracner");
- System.out.println("usage:\n\t mjc2wsl {options} filename [outfile]");
- System.out.println("options:\n\t--screen print output to screen");
- System.out.println("\t-o --oc[+-] include original code in comments");
- System.out.println("\t-v verbose, print warning messages");
- System.out.println("\t-q don't print even the error messages");
- System.out.println("\t-d print detailed debug messages");
}
public String makeDefaultOutName(String inname){
if (args[i].compareTo("-h") == 0) {
printHelp();
return;
+ } else if (args[i].compareTo("--help") == 0) {
+ printLongHelp();
+ return;
+ } else if (args[i].compareTo("--version") == 0
+ || args[i].compareTo("-version") == 0) {
+ printVersion();
+ return;
} else if (args[i].compareTo("-o") == 0
|| args[i].startsWith("--oc")) {
if (args[i].length() == 2)
} 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
+ messages.setPrintLevel(TransMessages.M_DEB);// print debug info
} else if (args[i].compareTo("-v") == 0) {
- printLevel = M_WAR;// print warnings
+ messages.setPrintLevel(TransMessages.M_WAR);// print warnings
} else if (args[i].compareTo("-q") == 0) {
- printLevel = M_ERR + 1;// no printing
+ messages.setPrintLevel(TransMessages.M_QUIET);// no printing
} else if (args[i].compareToIgnoreCase("--genEStackPrint") == 0) {
genPrintEStackOnChange = true;
} else if (args[i].compareToIgnoreCase("--genAddrPause") == 0) {
long mili = Calendar.getInstance().getTimeInMillis()
- now.getTimeInMillis();
System.out.println("conversion time:" + mili + " ms");
- printMessageCounters();
+ messages.printMessageCounters();
out.close();
} else
System.out.println("file does not exist");