- 6.2.1.0 Supported MSXπ UART(i8251) for MAmidiMemo

  - Slightly may improved transfer speed MSXπ UART(i8251)

Author: 110-kenichi

README.md

@@ -278,6 +278,8 @@ e.g.) YM2151 has 8ch FM sounds, so you can play 8 chords on MIDI 1ch or sharing
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 *** Changes
+- 6.2.1.0 Supported MSXπ UART(i8251) for MAmidiMemo
+  - Slightly may improved transfer speed MSXπ UART(i8251)
 - 6.2.0.1 Fixed OPNB wait for MSXπ UART(i8251).
 - 6.2.0.0 Supported MSXπ UART(i8251).
   - Use VGMPlay_mpi.rom (or VGMPlay_mpi_Vkey.rom)

src/VSIF/VGMPlayer/FormMain.Designer.cs

@@ -25,6 +25,7 @@
 using System.Windows.Markup;
 using System.Windows.Media;
 using System.IO.Ports;
+using System.Windows;
 
 //Sega Genesis VGM player. Player written and emulators ported by Landon Podbielski. 
 namespace zanac.VGMPlayer
@@ -3457,6 +3458,11 @@ protected override void StreamSong()
                                             if (adrs > 0xb2)
                                                 break;
 
+#if DEBUG
+                                            if (adrs >= 0x10 && adrs <= 0x1c)
+                                                Console.WriteLine("YM2610: ADPCM B write " + (adrs).ToString("x") + "=" + (dt).ToString("x"));
+#endif
+
                                             if (comPortOPNB != null)
                                             {
                                                 switch (adrs)
@@ -4254,6 +4260,11 @@ protected override void StreamSong()
                                                                     for (uint i = 0; i < romData.Length; i++)
                                                                         opnbPcm.adpcm_a_engine.intf().ymfm_external_write(access_class.ACCESS_ADPCM_A, saddr + i, romData[i]);
                                                                 }
+#if DEBUG
+                                                                Console.WriteLine("YM2610: Transferred ADPCM A(" +
+                                                                    (saddr).ToString("x") + " - " + ((saddr + size - 1)).ToString("x") +
+                                                                    " (" + size.ToString("x") + ")");
+#endif
                                                             }
                                                         }
                                                         break;
@@ -4276,6 +4287,11 @@ protected override void StreamSong()
                                                                     for (uint i = 0; i < romData.Length; i++)
                                                                         opnbPcm.adpcm_b_engine.intf().ymfm_external_write(access_class.ACCESS_ADPCM_B, saddr + i, romData[i]);
                                                                 }
+#if DEBUG
+                                                                Console.WriteLine("YM2610: Transferred ADPCM B(" +
+                                                                    (saddr).ToString("x") + " - " + ((saddr + size - 1)).ToString("x") +
+                                                                    " (" + size.ToString("x") + ")");
+#endif
                                                             }
                                                         }
                                                         break;

src/VSIF/VGMPlayer/VGMSong.cs

@@ -41,7 +41,7 @@ public static class Program
         /// <summary>
         /// 
         /// </summary>
-        public const string FILE_VERSION = "6.2.0.0";
+        public const string FILE_VERSION = "6.2.1.0";
 
         public const string FILE_COPYRIGHT = @"Virtual chiptune sound MIDI module ""MAmidiMEmo"" Version {0}
 Copyright(C) 2019, 2025 Itoken.All rights reserved.";

src/mamidimemo/Program.cs

@@ -275,26 +275,13 @@ private void sendData(byte[] sendData)
         {
             lock (LockObject)
             {
-                if (!SerialPort.IsOpen)
-                    return;
-
                 try
                 {
-                    int chunkSize = 8;
-                    int offset = 0;
-                    while (offset < sendData.Length)
-                    {
-                        if (!SerialPort.IsOpen)
-                            break;
-                        int size = Math.Min(chunkSize, sendData.Length - offset);
-                        byte[] chunk = new byte[size];
-                        Array.Copy(sendData, offset, chunk, 0, size);
-                        SerialPort?.Write(chunk, 0, size);
-                        offset += size;
-                    }
+                    SerialPort?.Write(sendData, 0, sendData.Length);
                 }
                 catch (Exception ex)
                 {
+                    SerialPort.Close();
                     if (ex.GetType() == typeof(Exception))
                         throw;
                     else if (ex.GetType() == typeof(SystemException))