using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;


namespace NesEmu
{
    public class CPU6502
    {
        // Registers (8-bit)
        public byte regA = 0x00;
        public byte regX = 0x00;
        public byte regY = 0x00;

        // Stack pointer (8-bit)
        public byte stackPointer = 0x00;

        // Status (8-bit)
        public byte status = 0x00;

        // Flags (1-bit)
        //public bool carryFlag = false;
        //public bool zeroFlag = false;
        //public bool interruptDisable = false;
        //public bool decimalMode = false;
        //public bool breakCommand = false;
        //public bool overflowFlag = false;
        //public bool negativeFlag = false;



        // Program counter (16-bit)
        public ushort programCounter = 0x0000;


        // Opcodes (it begins...)
        // LDX - Load X Register
        // Immediate
        public void opcode0xA2(byte value)
        {
            // Load the X register with the hex "value"
            this.regX = value;
        }

        // Zero Page
        public void opcode0xA6(byte value)
        {
            this.regX = value;
        }

        // Zero Page, Y
        public void opcode0xB6(byte value)
        {
            this.regX = (byte)(value + this.regY);
        }

        // Absolute
        public void opcode0xAE(byte value)
        {
            this.regX = value;
        }

        // Absolute, Y
        public void opcode0xBE(byte value)
        {
            this.regX = (byte)(value + this.regY);
        }

    }
}