Instructions to generate boot.rom

[tjanas]

From readme.md:

00000 ~ N88BASIC (32ko) mk2sr_n88.rom A0FC0473
08000- N-BASIC (32ko) mk2sr_n80.rom 27E1857D
10000 ~ N88 4th-0 (8ko) mk2sr_n88_0.rom 710A63EC
12000 ~ N88 4th-1 (8ko) n88_1.rom C0BD2AA6
14000 ~ N88 4th-2 (8ko) n88_2.rom AF2B6EFA
16000 ~ N88 4th-3 (8ko) n88_3.rom 7713C519
18000 ~ FONT (8x16) (2ko) + (2ko blank) font.rom 56653188
19000- Simple graphics font (attached Font / graphfont.bin) (4ko) graphfont.bin CDD1BE6B
1a000 ~ DISK ROM (8ko) + (16ko blank) mh_disk.rom A222ECF0
20000 ~ KANJI1 (128ko) kanji1.rom 6178BD43
40000 ~ KANJI2 (128ko) kanji2.rom 154803CC

copy /b mk2sr_n88.rom+mk2sr_n80.rom+mk2sr_n88_0.rom+n88_1.rom+n88_2.rom+n88_3.rom+font.rom+2KO_BLANK_00.ROM+graphfont.bin+mh_disk.rom+8KO_BLANK_00.ROM+8KO_BLANK_00.ROM+kanji1.rom+kanji2.rom boot.rom

I have all the component files that match the checksums described, with 2KO_BLANK_00.ROM being a 2048-byte file only containing null bytes, and 8KO_BLANK_00.ROM being a 8096-byte file only containing null bytes. Generating boot.rom from appending the above components results in the following file:

Name: boot.rom
Size: 393216 bytes
CRC32: 7E4F92C3
SHA1: 6CC312DBFD1F7BABE3CF6B4DB24F1EF192646400
MD5: 9F3EC09D19A0768F01FDBF2826ED3253

The boot.rom that is downloaded from the Bios DB via @theypsilon's update_all script has a different checksum:

Name: PC8801 MKII SR BIOS.rom
Size: 393216 bytes
CRC32: 6337409F
SHA1: 7A6676E352C8D0EAF16E5863C1C98AC65D6F8686
MD5: F1CE4D5F83717093982E5F75516B8F3C

Which is the correct file to use?
Are the checksums and instructions provided in readme.md correct?

[wwark]

There is few versions of the bioses for PC88 (differents revisions).
I couldn't say which one is the better to use.