day4 aoc2019

intcode.js

var run = input => {
  const program = new Int32Array(`3,225,1,225,6,6,1100,1,238,225,104,0,101,14,135,224,101,-69,224,224,4,224,1002,223,8,223,101,3,224,224,1,224,223,223,102,90,169,224,1001,224,-4590,224,4,224,1002,223,8,223,1001,224,1,224,1,224,223,223,1102,90,45,224,1001,224,-4050,224,4,224,102,8,223,223,101,5,224,224,1,224,223,223,1001,144,32,224,101,-72,224,224,4,224,102,8,223,223,101,3,224,224,1,223,224,223,1102,36,93,225,1101,88,52,225,1002,102,38,224,101,-3534,224,224,4,224,102,8,223,223,101,4,224,224,1,223,224,223,1102,15,57,225,1102,55,49,225,1102,11,33,225,1101,56,40,225,1,131,105,224,101,-103,224,224,4,224,102,8,223,223,1001,224,2,224,1,224,223,223,1102,51,39,225,1101,45,90,225,2,173,139,224,101,-495,224,224,4,224,1002,223,8,223,1001,224,5,224,1,223,224,223,1101,68,86,224,1001,224,-154,224,4,224,102,8,223,223,1001,224,1,224,1,224,223,223,4,223,99,0,0,0,677,0,0,0,0,0,0,0,0,0,0,0,1105,0,99999,1105,227,247,1105,1,99999,1005,227,99999,1005,0,256,1105,1,99999,1106,227,99999,1106,0,265,1105,1,99999,1006,0,99999,1006,227,274,1105,1,99999,1105,1,280,1105,1,99999,1,225,225,225,1101,294,0,0,105,1,0,1105,1,99999,1106,0,300,1105,1,99999,1,225,225,225,1101,314,0,0,106,0,0,1105,1,99999,108,226,677,224,1002,223,2,223,1006,224,329,1001,223,1,223,1007,226,226,224,1002,223,2,223,1006,224,344,101,1,223,223,1008,226,226,224,102,2,223,223,1006,224,359,1001,223,1,223,107,226,677,224,1002,223,2,223,1005,224,374,101,1,223,223,1107,677,226,224,102,2,223,223,1006,224,389,101,1,223,223,108,677,677,224,102,2,223,223,1006,224,404,1001,223,1,223,1108,677,226,224,102,2,223,223,1005,224,419,101,1,223,223,1007,677,226,224,1002,223,2,223,1006,224,434,101,1,223,223,1107,226,226,224,1002,223,2,223,1006,224,449,101,1,223,223,8,677,226,224,102,2,223,223,1006,224,464,1001,223,1,223,1107,226,677,224,102,2,223,223,1005,224,479,1001,223,1,223,1007,677,677,224,102,2,223,223,1005,224,494,1001,223,1,223,1108,677,677,224,102,2,223,223,1006,224,509,101,1,223,223,1008,677,677,224,102,2,223,223,1005,224,524,1001,223,1,223,107,226,226,224,1002,223,2,223,1005,224,539,101,1,223,223,7,226,226,224,102,2,223,223,1005,224,554,101,1,223,223,1108,226,677,224,1002,223,2,223,1006,224,569,1001,223,1,223,107,677,677,224,102,2,223,223,1005,224,584,101,1,223,223,7,677,226,224,1002,223,2,223,1005,224,599,101,1,223,223,108,226,226,224,1002,223,2,223,1005,224,614,101,1,223,223,1008,677,226,224,1002,223,2,223,1005,224,629,1001,223,1,223,7,226,677,224,102,2,223,223,1005,224,644,101,1,223,223,8,677,677,224,102,2,223,223,1005,224,659,1001,223,1,223,8,226,677,224,102,2,223,223,1006,224,674,1001,223,1,223,4,223,99,226`.split(/,/g).map(m => parseInt(m)));

  let pc = 0;
  //let results = [];

  const mode = {
    1: 0,
    2: 0,
    3: 0
  }
  
  const getValue = (d) => (mode[d] ? program[pc + (d - 1)] : program[program[pc + (d - 1)]]);

  const getPointer = (d) => (mode[d] ? pc + (d - 1) : program[pc + (d - 1)]);


  const modes = () => {
    return `p1:${(mode[1] ? 'i' : 'p')} p2:${(mode[2] ? 'i' : 'p')} p3:${(mode[3] ? 'i' : 'p')}`
  }

  while(program[pc] !== 99 && !window.stopNowPlease){
    let inst = program[pc++];

    mode[3] = ~~(inst / 10000)
    let op = inst - (mode[3] * 10000);
    mode[2] = ~~(op / 1000);
    op = op - (mode[2] * 1000);
    mode[1] = ~~(op / 100)
    op = op - (mode[1] * 100);
    
    switch(op) {
      case 1: {
        program[getPointer(3)] = getValue(1) + getValue(2);
        pc += 3;
        break;
      }
      case 2: {
        program[getPointer(3)] = getValue(1) * getValue(2);
        pc += 3;
        break;
      }
      case 3: {
        program[getPointer(1)] = input;
        pc += 1
        break;
      }
      case 4: {
        let r = getValue(1);
        if (r !== 0){
          console.warn('Diagnostic code',r);
        }
        pc ++
        break;
      }
      case 5: {
        if (getValue(1)) {
          pc = getValue(2);
        } else {
          pc += 2;
        }
        break;
      }
      case 6: {
        if (!getValue(1)) {
          pc = getValue(2);
        } else {
          pc += 2;
        }
        break;
      }
      case 7: {
        let c = getPointer(3);
        if (getValue(1) < getValue(2)) {
          program[c] = 1;
        } else {
          program[c] = 0;
        }
        pc += 3;
        break;
      }
      case 8: {
        let c = getPointer(3);
        if (getValue(1) === getValue(2)) {
          program[c] = 1;
        } else {
          program[c] = 0;
        }
        pc += 3;
        break;
      }
      default: {
        debugger;
        break;
      }
    }
  }
}