Noratrieb/brainfuck
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works kind of

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This commit is contained in:
nora 2021-04-20 10:55:49 +02:00
parent 6bec58b802
commit 05a0937e2c
3 changed files with 10 additions and 18 deletions
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15
bfi-java/src/Brainfuck.java
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@ -23,8 +23,8 @@ public class Brainfuck {
short[] memory = new short[MEM_SIZE];
int pc = 0;
while (pc < pgm.size()) {
if (pointer > 1000) break;
switch (pgm.get(pc)) {
case '>' -> {
if (pointer == MEM_SIZE - 1) {
@ -37,12 +37,14 @@ public class Brainfuck {
if (pointer == 0) {
pointer = MEM_SIZE - 1;
} else {
pointer++;
pointer--;
}
}
case '+' -> increment(memory, pointer);
case '-' -> decrement(memory, pointer);
case '.' -> out.append((char) memory[pointer]);
case '.' -> {
out.append((char) memory[pointer]);
}
case ',' -> {
} //todo implement i guess
case '[' -> {
@ -56,14 +58,14 @@ public class Brainfuck {
}
}
}
case ']' -> {
case ']' -> { //error lies here
if (memory[pointer] != 0) {
int level = 0;
while (pgm.get(pc) != '[' || level >= -1) {
while (pgm.get(pc) != '[' || level > -1) {
pc--;
char instruction = pgm.get(pc);
if (instruction == '[') level--;
if (instruction == ']') level++;
else if (instruction == ']') level++;
}
}
}
@ -101,7 +103,6 @@ public class Brainfuck {
String program = Files.readString(Paths.get(args[0]));
List<Character> minified = brainfuck.minify(program);
String result = brainfuck.interpret(minified);
System.out.println(result);