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NEC - PC-98 (Neko Project II)

Background

An emulator for NEC's PC-9801 (aka PC-98) personal computer platform, ported to libretro. This core has been completely superseded by the Neko Project II Kai core.

The Neko Project II core has been authored by

  • Neko Project II Team

The Neko Project II core is licensed under

  • MIT

A summary of the licenses behind RetroArch and its cores can be found here.

Extensions

Content that can be loaded by the Neko Project II core have the following file extensions:

  • .d98
  • .zip
  • .98d
  • .fdi
  • .fdd
  • .2hd
  • .tfd
  • .d88
  • .88d
  • .hdm
  • .xdf
  • .dup
  • .cmd
  • .hdi
  • .thd
  • .nhd
  • .hdd

RetroArch database(s) that are associated with the Neko Project II core:

Features

Frontend-level settings or features that the Neko Project II core respects.

Feature Supported
Saves ✕
States ✔
Rewind ✔
Core Options ✔
Memory Monitoring (achievements) ✕
RetroArch Cheats ✕
Controls ✕
Subsystem ✕
Disk Control ✔

Directories

The Neko Project II core's library name is 'Neko Project II'

Core options

The Neko Project II core has the following option(s) that can be tweaked from the core options menu. The default setting is bolded.

  • PC Model (Restart) [np2_model] (VX|EPSON|VM)

  • CPU Base Clock (Restart) [np2_clk_base] (2.4576 MHz|1.9968 MHz)

  • CPU Clock Multiplier (Restart) [np2_clk_mult] (4|5|6|7|8|9|10|11|12|13|14|15|16|17|18|19|20|21|22|23|24|25|26|27|28|29|30|31|32|1|2|3)

  • RAM Size (Restart) [np2_ExMemory] (2|3|4|5|6|7|8|9|10|11|12|13|14|15|16|24|32|48|64|1)

  • Skipline Revisions [np2_skipline] (Full 255 lines|ON|OFF)

  • Sound Board (Restart) [np2_SNDboard] (PC9801-86|PC9801-26K + 86|PC9801-86 + Chibi-Oto|PC9801-118|Speak Board|Spark Board|Sound Orchestra|Sound Orchestra-V|AMD-98|None|PC9801-14|PC9801-26K)

  • JastSound [np2_jast_snd] (OFF|ON)

  • Volume FM [np2_volume_F] (64|68|72|76|80|84|88|92|96|100|104|108|112|116|120|124|128|0|4|8|12|16|20|24|28|32|36|40|44|48|52|56|60)

  • Volume SSG [np2_volume_S] (64|68|72|76|80|84|88|92|96|100|104|108|112|116|120|124|128|0|4|8|12|16|20|24|28|32|36|40|44|48|52|56|60)

  • Volume ADPCM [np2_volume_A] (64|68|72|76|80|84|88|92|96|100|104|108|112|116|120|124|128|0|4|8|12|16|20|24|28|32|36|40|44|48|52|56|60)

  • Volume PCM [np2_volume_P] (64|68|72|76|80|84|88|92|96|100|104|108|112|116|120|124|128|0|4|8|12|16|20|24|28|32|36|40|44|48|52|56|60)

  • Volume RHYTHM [np2_volume_R] (64|68|72|76|80|84|88|92|96|100|104|108|112|116|120|124|128|0|4|8|12|16|20|24|28|32|36|40|44|48|52|56|60)

  • Floppy Seek Sound (Restart) [np2_Seek_Snd] (OFF|ON)

  • Volume Floppy Seek (Restart) [np2_Seek_Vol] (80|84|88|92|96|100|104|108|112|116|120|124|128|0|4|8|12|16|20|24|28|32|36|40|44|48|52|56|60|64|68|72|76)

  • Volume Beep [np2_BEEP_vol] (3|0|1|2)

  • Gui Controller [np2_GUI_controller] (MOUSE|JOY0)

  • Gui Joy0 PAS [np2_GUIJOY_PAS] (3|4|5|1|2)