NgPsp

ngPsp
General
Author	PSMonkey (nexis2600)
Type	Handheld
Version	1.3.1
License	Mixed
Last Updated	2005/09/15
Links
Download  v1.3.1 - Old versions
Website

NGPsp is a Neo Geo Pocket emulator for PSP. Based on NeoPop by neopop_uk.

Installation

Folder structure:

• ms0:\PSP\GAME\NGPSP\.
• ms0:\PSP\GAME\NGPSP\Battery\.
• ms0:\PSP\GAME\NGPSP\State\.
• ms0:\PSP\GAME\NGPSP\Roms\.

Copy EBOOT.PBP to PSP:\PSP\GAME\NGPSP\.

Copy your roms to PSP:\PSP\GAME\NGPSP\Roms\.

Supports formats are ngp, ngc, NGP and NGC. It does not support zip format.

Controls

Neo Geo:

Cross - A button

Circle - B button

Start - Option button (like start button)

Select - return to menu

Menu:

Up/Down - Change Selection

Left/Right (on number options) - Change Value

Circle - Change value or take action

Screenshots

Known issues

Samurai Shodown 2 & Last blade have some serious issues with the emulator. Both games will lock up for a few mins durring a battle then resume but yet keep repeating this every so often.

Report of Sonic not working in v1.3 (seems to run well on v1.3.1 at 333 and a frameskip of 4.)

Changelog

v1.3.1

• This build defaults to 333Mhz as it was a development build. You can still downclock the emu to 222 via the menu.
• Removed VSync from rendering. Games get a small boost and framerate is now around 40-50 fps in most games. A improvement over being a pretty solid 30.
• Sound code is there but ungodly bad. I left it in this build in the hope someone can help me out with correcting it and getting it accurate.
• Suport for using a real bios added but disabled in this build.
• Ps. I officialy changed my name from nexis2600 to PSmonkey now.

v1.3

• Speed improvements (listed below).
  • Some games are now running at 30-35 FPS with a frameskip of 1 (at 333Mhz).
  • Puzzle Link 2 now runs at 45-60 FPS with a frameskip of 4 (at 333Mhz).
• Allow for a few instruction runs before checking timmers/triggers (vblank & interupts).
• Added in a faster FETCH8 by making a special case mem read to check the rom space first.
• Added a Load24 and write24 to mem.c to speed up the fetch24 function.
• A color bug in B&W games was fixed.
• Added a key configuration menu (button config is saved to memstick).

v1.2.1

• User Cpu Clocking. You can now change the CPU speed of your psp.
• WARNING - By changing the CPU speed you accept full responcibility for any damage your psp might occur.

v1.2

• Implimented CZ80 core but seems slower then old Z80. So Code there but not being used.
• Analog Stick Suport.
• BG added (walpaper.bmp needs to be in same folder as rom).
• Small speed boost.
• Cleaned up Src (a bit).
• Save Ram Working.
• Save & Load States Working.
• Added exit option to menu.
• Learned how to spell his¡Pto¡Pry.

v1.1

• Reverted to some old code to fix some bad hacks made from s60 port.
• More games working (like metal slug).
• Small speed boost.

v1.0

• First build.
• Basic menu.
• High compatibility.
• Slow but decent FPS.
• No Sound.
• Suports NGP (B&W) & NGPC (Color) Roms.

Credits

Based on NeoPop by neopop_uk.

Background & Icon work by pochi.

Thanks:

• Snk - For the Neo Geo, Neo Geo Pocket & A library of awsome games.
• neopop_uk - For NeoPop.
• nem - His founding work in psp development.
• TyRaNiD - Additional Research in PSP development.
• RIN Team - A lot of help figuring out things from rin src (like analog, BMP read & File system).
• ps2dev forum - Great place to be.
• evangelion01 - Get out of my head & testing.
• Smiths - Helping me get a hold of pochi.
• pochi - Keep up the great art.

All the Great Folks at http://psp-news.dcemu.co.uk/

External links

• DCEmu - https://www.dcemu.co.uk/vbulletin/threads/6077-ngPsp-Neo-Geo-Pocket-Emu-for-PSP-V1-0
• DCEmu - http://psp-news.dcemu.co.uk/ngpsp.shtml

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