BMP画像ファイルをMSXで利用できる形式に変換するWindows用ツール https://github.com/hra1129/bmp2msx/blob/main/source/Release/BMP2MSX.exe
A Windows tool to convert BMP image files to a format that can be used with MSX. https://github.com/hra1129/bmp2msx/blob/main/source/ReleaseE/BMP2MSXE.exe