using System;
using System.Collections.Generic;
using System.Text;
using Sunweaver.Commands.Attributes;
using Sunweaver.VM;

namespace Sunweaver.Commands
{
    [Punctuation("Stores the top value of the integer stack in to the given memory location.")]
    public class ExplicitStore : Commands.Label
    {
        public ExplicitStore(string name, Int16 number) : base(name, number) { }

        public override void Implementation(VirtualMachine VM)
        {
            if (VM.Stack.Count == 0)
                return;

            long a = VM.Stack.Pop();

            if (!VM.BoolStack.Peek())
                return;

            int loc = Math.Abs(this.number) % (Sunweaver.VM.Memory.MemorySlots + 1);

            VM.Memory[loc] = (short)(a % (Sunweaver.VM.Memory.MaxAbsoluteMemoryValue + 1));
        }

        public override string ToString()
        {
            if (Name != string.Empty)
                return "." + Name;
            else
                return "." + number.ToString();
        }
    }
}