Author Topic: GBA NES pocket emulator  (Read 1774 times)

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Offline Erockbrox

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GBA NES pocket emulator
« on: December 15, 2019, 04:05 AM »
So I found out that there is an NES emulator that you can use on your GBA everdrive. Cool.

Okay so apparently this is the website.

http://www.dwedit.org/gba/pocketnes.php

Okay cool so far. Then I stuck the file(s) named "pocketnes.gba" with some other files on the SD card and inserted it into my GBA everdrive with a folder with some nes roms.

Then when I select the pocketnes.gba emulator it says "no roms found use pocketnes menu maker"

So my impression right away is that "this isn't going to be easy". I mean shouldn't I just be able to open up the emulator and then be able to navigate the directory and then select the various roms folders that I have in the same folder as the emulator. I mean, I know its running on a GBA, but that is what the everdrive does. The everdrive lets you select your games via a menu, but the pocket nes doesn't unless you create some special menu for it? So my response is like WTF. Any help?
« Last Edit: December 15, 2019, 04:58 AM by Erockbrox »

Offline Shadow666

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Re: GBA NES pocket emulator
« Reply #1 on: December 15, 2019, 04:10 AM »
So I found out that there is an NES emulator that you can use on your GBA everdrive. Cool.

Okay so apparently this is the website.

http://www.dwedit.org/gba/pocketnes.php

Okay cool so far. Then I stuck the file(s) named "pocketnes.gba" with some other files on the SD card and inserted it into my GBA everdrive with a folder with some nes roms.

Then when I select the pocketnes.gba emulator it says "no roms found use pocketnes menu maker"

So my impression right away is that "this isn't going to be easy". I mean should I just open up the emulator and then be able to navigate the directory and then select the various roms folders that I have in the same folder as the emulator. I mean, I know its running on a GBA, but that is what the everdrive does. The everdrive lets you select your games via a menu, but the pocket nes doesn't unless you create some special menu for it? So my response is like WTF. Any help?

u have to pack .gba for each nes rom u want to play or a bunch at the same time

Offline lee4

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Re: GBA NES pocket emulator
« Reply #2 on: December 15, 2019, 04:51 AM »
pocketnes.gba  goes into GBASYS folder
and
create new folder for NES games
from there you can pick any nes game
EDGBA will auto run pocketnes
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Offline Erockbrox

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Re: GBA NES pocket emulator
« Reply #3 on: December 15, 2019, 05:26 AM »
pocketnes.gba  goes into GBASYS folder
and
create new folder for NES games
from there you can pick any nes game
EDGBA will auto run pocketnes

Okay, I did what you said and it worked!

I put the pocket.nes file into the gbasys folder then created another folder which has my nes roms in it. Instead of running the emulator directly, I just picked the nes roms and like magic the nes games are running. thanks.

The only problem that I see is that the games are running in a compressed graphical state. I then did left and right trigger to bring up the menu and yes you can change the resolution of the screen, but what I can't believe is that the resolution of a real NES game exceeds that of the GBA screen resolution. So you can't display the full normal resolution of a NES game on the GBA. That's kind of strange, but it is what it is. But it like makes NES games then not as enjoyable then. Oh well.


Offline Localhorst86

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Re: GBA NES pocket emulator
« Reply #4 on: December 15, 2019, 10:00 AM »
The only problem that I see is that the games are running in a compressed graphical state. I then did left and right trigger to bring up the menu and yes you can change the resolution of the screen, but what I can't believe is that the resolution of a real NES game exceeds that of the GBA screen resolution.
Well he GBA has a really weird aspect ratio and therefore unusual resolution (240x160 px). Nes games run at 256x240 px. In the horizontal axis, the 16 missing pixels are no issue, because those are "overscan" anyways - they were usually not displayed on CRT TVs at the time and therefore did not contain the game area (if you run Super Mario Bros. 3 in an emulator on your PC, you'll see a blue bar on the left and artifacts on the right side of the screen in that overscan area, for example).
but vertically, we're missing 80 pixels which PocketNES needs to compensate via scaling, compressing the image vertically. PocketNES also has two different scaling options where it cuts of the excess 80 pixels - one mode has the screen fixed and the top and bottom cut of permanently, the other mode tries to follow your sprite and scrolls vertically if necessary.

Either way, the GBAs home console emulation capabilites are impressive but seriously held back by its low resolution screen.

Offline Richardragon87

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Re: GBA NES pocket emulator
« Reply #5 on: December 15, 2019, 07:49 PM »
That sounds really cool if it can now run a lot of the mapper games that the integrated NES emulator for the GBA Everdrive X5 couldn't run.

The problem with the integrated one is that different versions of that application ran mapper games while new ones took liberties to improve other games but at the cost of either removing the fixed mapper features to the previous games that ran on an earlier version.

I once made a pretty basic list of differences between certain games across two various NES emulators if I recall one was called VisualNES (I think) and the other was the linked PocketNES one...

You can read the whole summery of the differences here - http://krikzz.com/forum/index.php?topic=8606.msg66806#msg66806

And as the post above mine already said the GBA really was incredible, it was also near enough capable of running SNES games though a lot were known as proof of concept they could indeed be improved if enough work was put into it... I myself did intend to restore a lot of games fixing camera angles on them so they would play out how an official GBA game did and more.
« Last Edit: December 15, 2019, 07:59 PM by Richardragon87 »
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Offline Davestra

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Re: GBA NES pocket emulator
« Reply #6 on: January 23, 2020, 12:56 AM »
Thanks for the link, Richard! Will check it out.

Offline Richardragon87

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Re: GBA NES pocket emulator
« Reply #7 on: January 25, 2020, 03:09 AM »
Thanks for the link, Richard! Will check it out.

No probs hope it helps ^^
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