MSX emulator for the DS made by Popolon.
Unzip the archive and copy fmsxDS.nds on your flash card.
Copy the /msxds folder that contains 'CMOS.ROM' and 'Carts.crc' files into root of your flash card.
Copy MSX/MSX2/MSX2+ japanese BIOS, FM-PAC BIOS and Kanji ROM into this folder.
That is the following files:
Unzip the archive and copy fmsxDS.nds on your flash card.
Copy the /msxds folder that contains 'CMOS.ROM' and 'Carts.crc' files into root of your flash card.
Copy MSX/MSX2/MSX2+ japanese BIOS, FM-PAC BIOS and Kanji ROM into this folder.
That is the following files: