Subversion Repositories a-z80

using System;

using System.Collections.Generic;

using System.IO;

namespace z80_pla_checker

{

    /// 

    /// This class loads from a file the opcode table and provides

    /// access functions to a table.

    /// 

    class ClassOpcodeTable

    {

        /// 

        /// Contains the opcode description indexed by the opcode byte

        /// 

        private readonly Dictionary op = new Dictionary();

        /// 

        /// Loads an opcode table from a text file

        /// 

        public void Load(string filename, int xxindex)

        {

            ClassLog.Log("Loading opcode table: " + filename);

            try

            {

                string[] lines = File.ReadAllLines(filename);

                op.Clear();

                foreach (string line in lines)

                {

                    string hex = line.Substring(xxindex, 2);

                    string instr = line.Substring(12);

                    int xx = Convert.ToInt32(hex, 16);

                    op[xx] = instr;

                }

            }

            catch (Exception ex)

            {

                ClassLog.Log(ex.Message);

            }

        }

        /// 

        /// Dumps the opcode table in a table format

        /// The opcode numbers in the list t will be tagged (marked with *)

        /// 

        public void Dump(List t)

        {

            ClassLog.Log(new string('-', 242));

            for (int y = 0; y < 16; y++)

            {

                string line = string.Format("{0:X} ", y);

                for (int x = 0; x < 16; x++)

                {

                    string opcode = "";

                    if (op.ContainsKey(y * 16 + x))

                        opcode = op[y * 16 + x];

                    if (opcode.Length > 12)

                        opcode = opcode.Substring(0, 12);

                    char tag = ' ';

                    if (t.Contains(y * 16 + x)) tag = '*';

                    line += string.Format(" |{0}{1,-12}", tag, opcode);

                }

                ClassLog.Log(line);

            }

        }

    }

}