146 lines
3.3 KiB
TypeScript
146 lines
3.3 KiB
TypeScript
namespace AdventOfCode2019_05_1
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{
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const DAY = 5;
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const PROBLEM = 1;
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export async function run()
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{
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let input = await AdventOfCode.getInput(DAY);
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if (input == null) return;
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let runner = new Interpreter(input.split(",").map(p => parseInt(p.trim())), [1]);
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runner.run();
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AdventOfCode.output(DAY, PROBLEM, runner.output.reverse()[0].toString());
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}
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class Interpreter
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{
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program: number[];
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input: number[];
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instructionpointer: number;
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inputpointer: number;
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output: number[];
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constructor(prog: number[], input: number[])
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{
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this.program = prog;
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this.input = input;
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this.instructionpointer = 0;
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this.inputpointer = 0;
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this.output = [];
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}
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run()
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{
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while(true)
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{
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const cmd = new Op(this.program[this.instructionpointer]);
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if (cmd.opcode == OpCode.ADD)
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{
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const p0 = cmd.getParameter(this, 0);
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const p1 = cmd.getParameter(this, 1);
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const pv = p0 + p1;
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cmd.setParameter(this, 2, pv);
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}
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else if (cmd.opcode == OpCode.MUL)
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{
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const p0 = cmd.getParameter(this, 0);
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const p1 = cmd.getParameter(this, 1);
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const pv = p0 * p1;
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cmd.setParameter(this, 2, pv);
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}
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else if (cmd.opcode == OpCode.HALT)
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{
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return;
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}
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else if (cmd.opcode == OpCode.IN)
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{
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const pv = this.input[this.inputpointer];
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cmd.setParameter(this, 0, pv);
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this.inputpointer++;
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}
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else if (cmd.opcode == OpCode.OUT)
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{
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const p0 = cmd.getParameter(this, 0);
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this.output.push(p0);
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AdventOfCode.outputConsole("# " + p0);
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}
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else throw "Unknown Op: " + cmd.opcode + " @ " + this.instructionpointer;
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this.instructionpointer += 1 + cmd.parametercount;
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}
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}
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}
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enum OpCode
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{
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ADD = 1,
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MUL = 2,
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IN = 3,
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OUT = 4,
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HALT = 99,
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}
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enum ParamMode
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{
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POSITION_MODE = 0,
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IMMEDIATE_MODE = 1,
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}
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class Op
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{
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opcode: OpCode;
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modes: ParamMode[];
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name: string;
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parametercount: number;
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constructor(v: number)
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{
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this.opcode = v%100;
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v = Math.floor(v/100);
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this.modes = [];
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for(let i=0; i<4; i++)
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{
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this.modes.push(v%10);
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v = Math.floor(v/10);
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}
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if (this.opcode == OpCode.ADD) { this.name="ADD"; this.parametercount=3; }
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else if (this.opcode == OpCode.MUL) { this.name="MUL"; this.parametercount=3; }
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else if (this.opcode == OpCode.HALT) { this.name="HALT"; this.parametercount=0; }
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else if (this.opcode == OpCode.IN) { this.name="IN"; this.parametercount=1; }
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else if (this.opcode == OpCode.OUT) { this.name="OUT"; this.parametercount=1; }
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else throw "Unknown opcode: "+this.opcode;
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}
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getParameter(proc: Interpreter, index: number): number
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{
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const prog = proc.program;
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const ip = proc.instructionpointer;
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let p = prog[ip+1+index];
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if (this.modes[index] == ParamMode.POSITION_MODE) p = prog[p];
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else if (this.modes[index] == ParamMode.IMMEDIATE_MODE) p = p;
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else throw "Unknown ParamMode: "+this.modes[index];
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return p;
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}
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setParameter(proc: Interpreter, index: number, value: number): void
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{
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const prog = proc.program;
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const ip = proc.instructionpointer;
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let p = prog[ip+1+index];
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if (this.modes[index] == ParamMode.POSITION_MODE) prog[p] = value;
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else if (this.modes[index] == ParamMode.IMMEDIATE_MODE) throw "Immediate mode not allowed in write";
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else throw "Unknown ParamMpde: "+this.modes[index];
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}
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}
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}
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