Model II/16/16B/6000 Boot ROMs

432F (????) - Boots floppy only
0A79 (C8FF) - Boots floppy only
4A6A (2BFF) - Installed with 8x300 HD upgrade
BFC0 (FC86) - Boots floppy and 8x300 HD
88E2 (2119) - Boots floppy and 8x300 HD
F42A (1BBE) - Boots floppy and 8x300 HD
C9AC (9733) - Boots floppy and WD1010 or 8x300 HD
1A95 (????) - Boots floppy and WD1010 or 8x300 HD
CB11 (????) - Boots floppy and WD1010 or 8x300 HD
E996 (????) - Boots floppy and WD1010 or 8x300 HD
C745 (????) - Boots floppy and WD1010 or 8x300 HD
3DCE (A516) - mii_rom_-m6010_boot-6_a516-01a516.bin
F423 (97EA) - mii_rom_b-plus-plus-197EA.bin
721A (????) - membug-rom-2716-3721a.bin

14 ROMs known, 9 found.

TRSROM:

  62D30A6F A516    800 mii_rom_-m6010_boot-6_a516-01a516.bin
  7017A373 C8FF    800 C8FF.BIN
D 7017A373 C8FF    800 mii-mask-rom_mod-ii-boot_6c8ff.bin
  764D113F FC86    800 FC86.BIN
  7A663049 2119    800 2119.BIN
  823924B1 9733    800 C9AC.BIN
D 823924B1 9733    800 MII_ROM_C9AC-19733.bin
D 823924B1 9733    800 mii_rom_c9ac-copy2-19733.bin
  8EDCEEA7 1BBE    800 mii-boot-f432_61bbe.bin
  932CF2E0 721A    800 membug-rom-2716-3721a.bin
  C6C71D8B 2BFF    800 2BFF.BIN
D C6C71D8B 2BFF    800 mii-boot-hdboot-qat-62bff.bin
  F36D7A00 97EA    800 mii_rom_b-plus-plus-197EA.bin

13 ROMs, 9 unique, 4 duplicates, 0 unchecked

gp2000 notes:

cpu_c8ff.bin/.hex - No HDA support (Version 1, no date)
cpu_2bff.bin/.hex - slightly different HD boot code (compared to 1bbe/2119) (Version 2, 81-07-29)
cpu_2119.bin/.hex - Identical to 1bbe (8 bytes different in the unused area) (Version 3, 82-05-07)
cpu_1bbe.bin/.hex - Identical to 2119 (8 bytes different in the unused area) (Version 3, 82-05-07)
cpu_fc86.bin/.hex - U54 in M12. Very similar to 9733, but with ROM checksum (Version 4, 82-11-18)
cpu_9733.bin/.hex - Resets DMA, CTC SIO, no ROM checksum (Version 5, 83-07-29)

TRS-80 Model II ROM Checksum Mappings
Tandy -> Reader
0A79 -> C8FF
4A6A -> 2BFF
88E2 -> 2119
C9AC -> 9733	Smart enough to not boot HD
BFC0 -> FC86