#region License
/* 
 * Copyright (C) 1999-2022 John Källén.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; see the file COPYING.  If not, write to
 * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
 */
#endregion

using NUnit.Framework;
using Reko.Arch.Cray;
using Reko.Arch.Cray.Cray1;
using Reko.Core;
using Reko.Core.Memory;
using System;
using System.Collections.Generic;
using System.ComponentModel.Design;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Reko.UnitTests.Arch.Cray.Cray1
{
    [TestFixture]
    public class Cray1DisassemblerTests : DisassemblerTestBase<CrayInstruction>
    {
        private Cray1Architecture arch;
        private Address addr;

        [SetUp]
        public void Setup()
        {
            this.arch = new Cray1Architecture(new ServiceContainer(), "cray1", new Dictionary<string, object>());
            this.addr = Address.Ptr32(0x00100000);
        }

        public override IProcessorArchitecture Architecture => arch;

        public override Address LoadAddress => addr;

        private void AssertCode(string sExp, string octBytes)
        {
            var instr = DisassembleOctBytes(octBytes);
            Assert.AreEqual(sExp, instr.ToString());
        }

        protected CrayInstruction DisassembleOctBytes(string octalBytes)
        {
            var mem = new ByteMemoryArea(LoadAddress, new byte[256]);
            byte[] bytes = ParseOctPattern(octalBytes);
            return DisassembleBytes(bytes);
        }

        private byte[] ParseOctPattern(string octalBytes)
        {
            var w = new BeImageWriter();
            int h = 0;
            for (int i = 0; i < octalBytes.Length; ++i)
            {
                var digit = octalBytes[i] - '0';
                if (0 <= digit && digit <= 9)
                {
                    h = h * 8 + digit;
                    if ((i + 1) % 6 == 0)
                    {
                        w.WriteBeUInt16((ushort) h);
                        h = 0;
                    }
                }
                else
                {
                    break;
                }
            }
            return w.Bytes;
        }

        [Test]
        public void Cray1dis_ErrorExit()
        {
            AssertCode("err", "000000");
        }
    }
}
