PC8801 - Maverick-Shark/retroGuru GitHub Wiki

Nec PC-8801

Info

MiSTer core

  • Port of the core PC8801 MKII SR by Puu-san
  • PC88 MiSTer

MiSTer Forum

Installation

  1. Copy the PC88_*.rbf file to the root of the SD card.
  2. Create a PC8801 folder on the root/games of the card, and place PC8801 floppies (*.D88) inside this folder.
  • boot.rom = PC8801 MKII SR BIOS file. Required to start the core.

Start core through MRA file (N88V2 mode)

With the hints provided in this thread, I made a MRA file (download and code below).

  1. Put it in '_Computer'.
  2. Put the *.rbf in '_Computer/cores'.
  3. Put pc8801.zip and pc9801f.zip from the mame set inside '/media/fat/games/mame'.
  4. Start core by selecting the MRA file.
  5. Set 'Mode' to 'N88V2' in core menu.
  6. Reset core.
  7. You should now see some text.

Notes:

  • The graphfont.bin data is taken from 'PC8801/Font/graphfont.bin' inside the *.qar files provided by Puu-san.
  • Download pc8801.zip and pc9801f.zip files from MAME 0.224 merged roms
copy /b mk2sr_n88.rom+m2fr_n80.rom+m2fr_n88_0.rom+n88_1.rom+n88_2.rom+n88_3.rom+hn613128pac8.bin+graphfont.bin+m2mr_disk.rom+2KO_BLANK_00.ROM+kanji1.rom+kanji2.rom boot.rom

How To Create ROM (Bios) file

  • How to build the boot.rom
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

Links

MRA file

Download:

<misterromdescription>
  <name>NEC PC-8801 MK II SR BIOS</name>
  <mratimestamp>202101180000</mratimestamp>
  <mameversion>0224</mameversion>
  <setname>pc8801</setname>
  <year>1985</year>
  <manufacturer>NEC</manufacturer>
  <category>BIOS</category>
  <rbf>PC88</rbf>

  <rom index="0" zip="pc8801.zip|pc9801f.zip" md5="e2a4c20f24eb3897a3d8f93f3204a662" type="merged|nonmerged|split">
    <part crc="a0fc0473" name="pc8801mk2sr/mk2sr_n88.rom"/>
    <part crc="27e1857d" name="pc8801mk2fr/m2fr_n80.rom"/>
    <part crc="710a63ec" name="pc8801mk2fr/m2fr_n88_0.rom"/>
    <part crc="c0bd2aa6" name="pc8801mk2sr/n88_1.rom"/>
    <part crc="af2b6efa" name="pc8801mk2sr/n88_2.rom"/>
    <part crc="7713c519" name="pc8801mk2sr/n88_3.rom"/>
    <part crc="b5a15b5c" name="hn613128pac8.bin"/>
    <!-- graphfont.bin -->
    <part>
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    </part>
    <part crc="2447516b" name="pc8801mk2mr/m2mr_disk.rom"/>
    <!-- padding -->
    <part repeat="16384">00</part>
    <part crc="6178bd43" name="kanji1.rom"/>
    <part crc="154803cc" name="pc8801mk2sr/kanji2.rom"/>
  </rom>
</misterromdescription>
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