str code = "++++++++[>++++[>++>+++>+++>+<<<<-]>+>+>->>+[<]<-]>>.>---.+++++++..+++.>>.<-.<.+++.------.--------.>>+.>++.";
byte[10000] memory;

nat mp = 0;		// memory pointer
nat ip = 0; // instruction pointer

while (ip < code.length) {
    if (code[ip] == '>') {
        mp = mp + 1;
    } else if (code[ip] == '<') {
        mp = mp - 1;
    } else if (code[ip] == '+') {
        memory[mp] = memory[mp] + 1;
    } else if (code[ip] == '-') {
        memory[mp] = memory[mp] - 1;
    } else if (code[ip] == '.') {
        // console.write = memory[mp];
        write = memory[mp];
    } else if (code[ip] == ',') {
        // memory[mp] = console.read;
        memory[mp] = read;
    } else if (code[ip] == '[') {
        if(!memory[mp]) {
            nat nc = 1;
            while (nc > 0) {
                ip = ip + 1;
                if (code[ip] == '[') {
                    nc = nc + 1;
                } else if (code[ip] == ']') {
                    nc = nc - 1;
                }
            }
        }
    } else if (code[ip] == ']') {
        if (memory[mp]) {
            nat nc = 1;
            while (nc > 0) {
                ip = ip - 1;
                if (code[ip] == ']') {
                    nc = nc + 1;
                } else if (code[ip] == '[') {
                    nc = nc - 1;
                }
            }
        }
    }
    ip = ip + 1;
}

halt;