XFLASH ROM image
rev 1.2 - November 2022
ed@edcheung.com
checksum = 0x7C6AF2
Program into 27256 ROM
Usable to test System 11 in U27 (main) and U21 (sound)
And also System 9 in U20 (main) and U49 (sound)

https://www.edcheung.com/album/album21/asm/asm.htm
