It seems that the neogeo.c driver needs at least the crc and sha1 from hash.c:
#define NEOGEO_BIOS \
ROM_LOAD16_WORD_SWAP_BIOS( 0, "sp-s2.sp1", 0x00000, 0x020000, CRC(9036d879) SHA1(4f5ed7105b7128794654ce82b51723e16e389543) ) /* Europe, 1 Slot, has also been found on a 4 Slot (the old...