= syscall

Author: FalsePattern

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>com.falsepattern</groupId>
     <artifactId>jfunge</artifactId>
-    <version>0.3.0</version>
+    <version>1.0.0</version>
 
     <properties>
         <java.version>8</java.version>

src/main/java/com/falsepattern/jfunge/Globals.java

@@ -1,9 +1,9 @@
 package com.falsepattern.jfunge;
 
 public class Globals {
-    public static final String VERSION = "0.3.0";
-    public static final int FUNGE_VERSION = 0 * 256 * 256 + 3 * 256 + 0;
-    public static final int HANDPRINT = 0xfa15e9a7;
+    public static final String VERSION = "1.0.0";
+    public static final int FUNGE_VERSION = 1 * 256 * 256 + 0 * 256 + 0;
+    public static final int HANDPRINT = 0xfa15e9a7; //"falsepat"
     public static final String LICENSE = "JFunge - A standard-conforming Befunge-98 and Trefunge-98 interpreter\n" +
                                          "Copyright (C) 2022 FalsePattern\n" +
                                          "\n" +

src/main/java/com/falsepattern/jfunge/interpreter/ExecutionContext.java

@@ -21,7 +21,6 @@ public interface ExecutionContext {
     void step(InstructionPointer ip);
     List<String> args();
     Map<String, String> env();
-    int paradigm();
     int input(boolean stagger);
     OutputStream output();
     byte[] readFile(String file);

src/main/java/com/falsepattern/jfunge/interpreter/Interpreter.java

@@ -191,11 +191,6 @@ public Map<String, String> env() {
         return Collections.unmodifiableMap(System.getenv());
     }
 
-    @Override
-    public int paradigm() {
-        return 0;
-    }
-
     @Override
     public int input(boolean stagger) {
         var value = -1;

src/main/java/com/falsepattern/jfunge/interpreter/instructions/Funge98.java

@@ -455,15 +455,15 @@ public static void sysInfo(ExecutionContext ctx) {
         //6 separator
         s.push(File.separatorChar);
         //5 operating paradigm
-        s.push(ctx.paradigm());
+        s.push(1);
         //4 version
         s.push(Globals.FUNGE_VERSION);
         //3 handprint
         s.push(Globals.HANDPRINT);
         //2 bpc
         s.push(4);
         //1 flags
-        s.push(0b00000111);
+        s.push(0b00001111);
         if (n > 0) {
             int curr = s.pick(n - 1);
             for (int i = s.size(); i >= tossSize; i--) {
@@ -572,6 +572,17 @@ public static void readChar(ExecutionContext ctx) {
         ctx.IP().stackStack.TOSS().push(ctx.input(false));
     }
 
+    @Instr('=')
+    public static void sysCall(ExecutionContext ctx) {
+        val command = ctx.IP().stackStack.TOSS().popString();
+        try {
+            val proc = Runtime.getRuntime().exec(command);
+            ctx.IP().stackStack.TOSS().push(proc.waitFor());
+        } catch (Exception e) {
+            ctx.IP().stackStack.TOSS().push(-1);
+        }
+    }
+
     @Override
     public void load(ObjIntConsumer<Instruction> instructionSet) {
         InstructionSet.super.load(instructionSet);