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Author Topic: Pseudo-Brainfuck interpreter  (Read 700 times)

MoonyTheHuman

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Pseudo-Brainfuck interpreter
« on: April 23, 2016, 10:23:16 am »

*This code needs to be compiled*
*This code is under a CC license*
Code: [Select]
#include <stdio.h>
#include <string.h>
#include <stdlib.h>

// initialize the tape with 30,000 zeroes
unsigned char tape[30000] = {0};

// set the pointer to point at the left-most cell of the tape
unsigned char* ptr = tape;


void interpret(char* input) {
    char current_char;
    size_t i;
    size_t loop;

    for (i = 0; input[i] != 0; i++) {
        current_char = input[i];
        if (current_char == '>') {
            ++ptr;
        } else if (current_char == '<') {
            --ptr;
        } else if (current_char == '+') {
            ++*ptr;
        } else if (current_char == '-') {
            --*ptr;
        } else if (current_char == '.' ) {
            putchar(*ptr);
        } else if (current_char == ',') {
            *ptr = getchar();
        } else if (current_char == '[') {
            continue;
        } else if (current_char == ']' && *ptr) {
            loop = 1;
            while (loop > 0) {
                current_char = input[--i];
                if (current_char == '[') {
                    loop--;
                } else if (current_char == ']') {
                    loop++;
                }
            }
        }
    }
}


int main() {
    char* input[10000];
    scanf("%s",input);
    interpret(input);  // outputs input
    return 0;
}
Compile and run (=

milo christiansen

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Re: Pseudo-Brainfuck interpreter
« Reply #1 on: April 23, 2016, 02:01:41 pm »

There seems to be no provision to keep people from running off the ends of the tape?
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ChairmanPoo

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Re: Pseudo-Brainfuck interpreter
« Reply #2 on: April 23, 2016, 02:25:48 pm »

What does it do
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MoonyTheHuman

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Re: Pseudo-Brainfuck interpreter
« Reply #3 on: April 23, 2016, 09:23:59 pm »

There seems to be no provision to keep people from running off the ends of the tape?
this design is quite basic, you can add it yourself, if you wish

Dozebôm Lolumzalìs

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Re: Pseudo-Brainfuck interpreter
« Reply #4 on: April 24, 2016, 07:39:01 pm »

What does it do

It's a coding language. Extremely minimalistic, and basically machine code. Brainfuck, so called because it's incredibly hard to read, about as hard as binary.
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MoonyTheHuman

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Re: Pseudo-Brainfuck interpreter
« Reply #5 on: April 26, 2016, 07:41:30 pm »

What does it do

It's a coding language. Extremely minimalistic, and basically machine code. Brainfuck, so called because it's incredibly hard to read, about as hard as binary.
what he said Chairman