> For the complete documentation index, see [llms.txt](https://wiki.retrobat.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.retrobat.org/systems-and-emulators/supported-game-systems/home-computer/nec/nec-pc-9800.md).

# NEC PC-9800

NEC

<div align="left"><figure><picture><source srcset="https://raw.githubusercontent.com/fabricecaruso/es-theme-carbon/91d85c7849cc550b0cac4e75cb8e0923d3b61b5e/art/logos/pc98-w.svg" media="(prefers-color-scheme: dark)"><img src="https://i.imgur.com/Cn9WzBZ.png" alt=""></picture><figcaption></figcaption></figure></div>

Computer - Release date: 1982

{% embed url="<https://en.wikipedia.org/wiki/PC-9800_series>" %}

## Information

<table data-header-hidden><thead><tr><th width="184"></th><th></th><th data-hidden></th></tr></thead><tbody><tr><td><strong>Emulators</strong></td><td><ul><li>libretro: np2kai</li><li>libretro: nekop2</li></ul></td><td></td></tr><tr><td><strong>Games Location</strong></td><td><span data-gb-custom-inline data-tag="emoji" data-code="1f4c1">📁</span> roms \ <span data-gb-custom-inline data-tag="emoji" data-code="1f4c2">📂</span> pc98</td><td></td></tr><tr><td><strong>File extensions</strong></td><td>.d98 .zip .98d .fdi .fdd .2hd .tfd .d88 .88d .hdm .xdf .dup .cmd .hdi .thd .nhd .hdd .hdn .cue .m3u</td><td></td></tr></tbody></table>

## System Features

<table><thead><tr><th width="245">Retroachievements</th><th width="200">Netplay</th><th>Controller autoconfig</th></tr></thead><tbody><tr><td>lr-np2kai: NO<br>lr-nekop2: NO</td><td>lr-np2kai: YES<br>lr-nekop2: NO</td><td>lr-np2kai: YES<br>lr-nekop2: YES</td></tr></tbody></table>

## BIOS

<table><thead><tr><th width="193">Bios file</th><th width="173.03610108303252">Folder</th><th>md5</th></tr></thead><tbody><tr><td>BIOS.ROM</td><td><code>\bios\np2kai</code></td><td>e246140dec5124c5e404869a84caefce</td></tr><tr><td>FONT.ROM</td><td><code>\bios\np2kai</code></td><td>2af6179d7de4893ea0b705c00e9a98d6</td></tr><tr><td>SOUND.ROM</td><td><code>\bios\np2kai</code></td><td>caf90f22197aed6f14c471c21e64658d</td></tr><tr><td>ITF.ROM</td><td><code>\bios\np2kai</code></td><td>e9fc3890963b12cf15d0a2eea5815b72</td></tr><tr><td>font.bmp</td><td><code>\bios\np2kai</code></td><td>7da1e5b7c482d4108d22a5b09631d967</td></tr></tbody></table>

## Controls

Use Pad2Key for this system if you need specific mapping, see the [Pad2Key ](/controllers/pad2key.md)section of this Wiki.

<table><thead><tr><th width="311">Retrobat Button</th><th>PC98 key</th></tr></thead><tbody><tr><td>START</td><td>RETURN</td></tr><tr><td>SELECT</td><td>ESCAPE</td></tr><tr><td>D-PAD</td><td>Directions</td></tr><tr><td>Left analog stick</td><td></td></tr><tr><td>Right analog stick</td><td></td></tr><tr><td><img src="https://990680527-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FexdzL60ZuqPLldz2AYta%2Fuploads%2F5yYVjQu41LdiMVCXpyNa%2Fimage.png?alt=media&amp;token=e43f5c0f-2c53-49cc-9271-2385216d89df" alt=""></td><td>Left CTRL</td></tr><tr><td><img src="https://990680527-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FexdzL60ZuqPLldz2AYta%2Fuploads%2FW8q8wzu0yW9Htt5h4zEA%2Fimage.png?alt=media&amp;token=a4ae3ad3-3a80-4c28-8b15-92a1b5a80da7" alt=""></td><td>Z</td></tr><tr><td><img src="https://990680527-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FexdzL60ZuqPLldz2AYta%2Fuploads%2FQlIryQa7tR2pBTWHhMXR%2Fimage.png?alt=media&amp;token=e1940a32-2494-4e92-a8b1-df9a722ed4f8" alt=""></td><td>X</td></tr><tr><td><img src="https://990680527-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FexdzL60ZuqPLldz2AYta%2Fuploads%2FxHRhyw00NGOZ8cEPrQdp%2Fimage.png?alt=media&amp;token=d6027ace-7176-4b82-b702-e3b2b65d7cd4" alt=""></td><td>SPACE</td></tr><tr><td>L1</td><td>Backspace</td></tr><tr><td>R1</td><td>Right Shift</td></tr><tr><td>L2</td><td></td></tr><tr><td>R2</td><td>Open the NP2 menu</td></tr><tr><td>L3</td><td></td></tr><tr><td>R3</td><td></td></tr></tbody></table>

## Specific system information

### Multi-disc games

Use a .cmd file.\
\
Create a text file with the extension ".cmd", write the name of the core that will execute the game, then write the name of a boot disk (.hdm), the harddisk image (.hdi), and CloneCD image (.ccd/.img/.sub) like in the example below.

`Policenauts.cmd`

```
np2kai "Policenauts (User boot disk) [for Neko Project II].hdm" "Policenauts [for Neko Project II].hdi" "Policenauts.ccd"
```

This work also while using different .hdm files

`Lam-Mal.cmd`

```
np2kai "Lam-Mal (Disk 1 - I).hdm" "Lam-Mal (Disk 2 - Ro).hdm" "Lam-Mal (Disk 3 - Ha).hdm" "Lam-Mal (Disk 4 - Ni).hdm"
```

\
This method seems to works with "Neko Project II Kai" core, not with "Neko Project II" core.


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