device-instructions.js

class DeviceInstructions
 {
    constructor(starting_registers = [0, 0, 0, 0]) {
        this.registers = JSON.parse(JSON.stringify(starting_registers));
    }

    /**
     * Opcodes
     */

    // Add Register - stores into register C the result of adding register A and register B.
    addr(a, b, c) {
        this.registers[c] = this.registers[a] + this.registers[b];
        return this.registers;
    }

    // Add Immediate - stores into register C the result of adding register A and value B.
    addi(a, b, c) {
        this.registers[c] = this.registers[a] + b;
        return this.registers;
    }

    // Multiply Register - stores into register C the result of multiplying register A and register B.
    mulr(a, b, c) {
        this.registers[c] = this.registers[a] * this.registers[b];
        return this.registers;
    }

    // Multiply Immediate - stores into register C the result of multiplying register A and value B.
    muli(a, b, c) {
        this.registers[c] = this.registers[a] * b;
        return this.registers;
    }

    // Bitwise AND Register - stores into register C the result of the bitwise AND of register A and register B.
    banr(a, b, c) {
        this.registers[c] = this.registers[a] & this.registers[b];
        return this.registers;
    }

    // Bitwise AND Immediate - stores into register C the result of the bitwise AND of register A and value B.
    bani(a, b, c) {
        this.registers[c] = this.registers[a] & b;
        return this.registers;
    }

    // Bitwise OR Register - stores into register C the result of the bitwise OR of register A and register B.
    borr(a, b, c) {
        this.registers[c] = this.registers[a] | this.registers[b];
        return this.registers;
    }

    // Bitwise OR Immediate - stores into register C the result of the bitwise OR of register A and value B.
    bori(a, b, c) {
        this.registers[c] = this.registers[a] | b;
        return this.registers;
    }

    // Set Register - copies the contents of register A into register C. (Input B is ignored.)
    setr(a, b, c) {
        this.registers[c] = this.registers[a];
        return this.registers;
    }

    // Set Immediate - stores value A into register C. (Input B is ignored.)
    seti(a, b, c) {
        this.registers[c] = a;
        return this.registers;
    }

    // Greater-than Immediate/Register - sets register C to 1 if value A is greater than register B. Otherwise, register C is set to 0.
    gtir(a, b, c) {
        this.registers[c] = a > this.registers[b] ? 1 : 0;
        return this.registers;
    }

    // Greater-than Register/Immediate - sets register C to 1 if register A is greater than value B. Otherwise, register C is set to 0.
    gtri(a, b, c) {
        this.registers[c] = this.registers[a] > b ? 1 : 0;
        return this.registers;
    }

    // Greater-than Register/Register - sets register C to 1 if register A is greater than register B. Otherwise, register C is set to 0.
    gtrr(a, b, c) {
        this.registers[c] = this.registers[a] > this.registers[b] ? 1 : 0;
        return this.registers;
    }

    // Equal Immediate/Register - sets register C to 1 if value A is equal to register B. Otherwise, register C is set to 0.
    eqir(a, b, c) {
        this.registers[c] = a === this.registers[b] ? 1 : 0;
        return this.registers;
    }

    // Equal Register/Immediate - sets register C to 1 if register A is equal to value B. Otherwise, register C is set to 0.
    eqri(a, b, c) {
        this.registers[c] = this.registers[a] === b ? 1 : 0;
        return this.registers;
    }

    // Equal Register/Register - sets register C to 1 if register A is equal to register B. Otherwise, register C is set to 0.
    eqrr(a, b, c) {
        this.registers[c] = this.registers[a] === this.registers[b] ? 1 : 0;
        return this.registers;
    }
}

module.exports = DeviceInstructions
;