Method fetch_inst

2019/src/intcoder.rs:115–127

(&mut self)

  }

  fn fetch_inst(&mut self) -> (i64,i64,i64,i64) {
    let a = self.fetch_adr(1);
    let b = self.fetch_adr(2);
    let c = self.fetch_write_adr(3);
    let op = self.get(self.pc) % 100;
    self.pc += match op {
      ADD|MUL|SLT|SEQ => 4,
      OUT|BSE         => 2,
      JNZ|JZ          => 3,
      _               => 0,
    };
    (op,a,b,c)
  }
}