• Analogizer V1.0.0 [30/03/2024]: Initial Analogizer support release
• Analogizer V1.0.1 [13/07/2024]: Added support for Y/C video and Scandoubler RGBHV. The savestate support was removed to make room for Analogizer features.
• Analogizer V1.0.2 [12/02/2025]: Added support for Analogizer configuration file, PSX SNAC gamecontrollers and NES SNAC Zapper lightgun.
• Analogizer V1.0.3 [27/02/2025]: Using customized Chip32 loader code the core recovers the savestate support. This method divides the core in two bitstreams each one with a specific support for mappers. The Chip32 loader check the NES ROM header al calculates the mapper code and load the bistream with the required mapper. This reduces the logic resources required (divides the mapper code into two blocks). Thanks to @agg23 by his help. This is based in the method used by @agg23 for the openFPGA SNES core.
• Analogizer V1.0.4 [05/03/2025]: Using customized Chip32 loader enables to run at correct speed PAL roms. This is based entirely on NES ROMS with 2.0 header or default NTSC settings will be used. Please make sure your PAL ROM has an iNES 2.0 header before reporting that the PAL ROM is not working properly. You can use this tool to check the ROM, the ma: NES Mapper. Most NES ROMs already support this format.
• Analogizer V1.0.5 [06/03/2025]: Fixed broken PAL bitstream support.
• Analogizer v1.0.6 [06/03/2025]: Added PAL bitstream for Set2 mappers (needed for Castlevania III PAL for example).
• Analogizer v1.0.7 [07/03/2025]: Fixed Savestates again (was an error reintroduced with 1.0.5).
• Analogizer v1.0.8 [11/03/2025]: Restored Extended Sprites support. I had inadvertently disabled extended sprite support at the core level (hack). I have enabled it but this has made me do a lot of flourishes to make room for this functionality along with everything else.
• Analogizer v1.0.9 [11/03/2025]: Added global switch to disable/enable Analogizer from Pocket Core Menu. When is disabled the SNAC controllers settings are ignored and the Pocket default controls are used. This applies to the Blank Pocket Screen setting also, the video is forwarded toward the Pocket screen instead the Analogizer settings that was stored.
• Analogizer v1.1.0 [22/03/2025]: Added support to AnalogizerConfigurator/Pupdate regional settings.

For the PAL/NTSC/Dendy ROM detection the Chip32 loader reads the NES game ROM header previously to load the core to decode the system type, this needs a iNES2.0 ROM header. If the ROM that are you using is of an older header type or not analogizer.bin file is detected the core will boot into NTSC mode.

The Loader uses the regional settings from analogizer.binfile to determine the mode the ROM is loaded/NES hardware runs. The settings are:

1. Auto>NTSC: Try to autodetect the regional setting from the ROM header. If the ROM is Multi-System uses the NTSC mode.
2. Auto>PAL: Try to autodetect the regional setting from the ROM header. If the ROM is Multi-System uses the PAL mode.
3. Auto>Another: Try to autodetect the regional setting from the ROM header. If the ROM is Multi-System uses the Dendy mode.
4. Force NTSC: The ROM uses the NTSC mode.
5. Force PAL: The ROM uses the PAL mode.
6. Force Another: The ROM uses the Dendy mode.

This Analogizer core uses a configuration file to select Analogizer adapter options, not based on the Pocket's menu system. It is necessary to run an external utility Pupdate >= 4.4.0 or AnalogizerConfigurator >= 0.4 to generate such a file. Once generated, you must copy the analogizer.bin file to the /Assets/analogizer/common folder on the Pocket SD card. If this folder does not exist, you must create it. Check the refered utility for the relevant options for the Analogizer adapter: SNAC controller, SNAC controller assigments (how to map physical SNAC game controllers to the Pocket openFPGA framework PAD format), Video output and Blank the Pocket Screen (On/Off).

This utility allows you to do a few things beyond the usual SNAC controller type and assignment, or video output type and blank of the Pocket screen.

Tested NES SNAC adapters working with the Zapper lightgun:

• https://ultimatemister.com/product/ultimate-snac-mini-hdmi/
• Blue212 based design (uses two board, a common board and console specific connector board). https://manuferhi.com/p/snac-adapter-for-mister with the two port NES connector or one port. Any SNAC adapter based on Blue212 design will be work.

Recomended settings inside Pupdate (PocketSetup>Analogizer Config>Standard Analogizer Config) for use the NES Zapper lightgun with a NES SNAC adapter:

SNAC Controller:     NES - Nintendo Entertainment System gamepad
SNAC Assigments:     SNAC P1,P2 -> Pocket P1,P2                 

Recomended settings with NES Core Pocket menu for use the NES Zapper lightgun with a NES SNAC adapter:

Use Zapper > SNAC Zapper

Connect the Zapper to the second port of the NES SNAC adapter (if you have the two ports version) or to the first port (if you have the one port version).

For use with PSX Analog stick emulating the reticle lightgun. Use this settings inside Pupdate (PocketSetup>Analogizer Config>Standard Analogizer Config):

SNAC Controller:     PSX (Analog PAD) - PlayStation 1/2 analog gamepad
SNAC Assigments:     SNAC P1,P2 -> Pocket P1,P2                       

Recomended settings with NES Core Pocket menu for use the NES Zapper lightgun with a NES SNAC adapter:

Use Zapper > Emulated Zapper (Stick)

Use the PSX game controller connected to the first port of th PSX SNAC adapter.

Analogizer support added by RndMnkIII. See more in the Analogizer main repository: Analogizer

Adapted to Analogizer by @RndMnkIII based on agg23 NES for Analogue Pocket: https://github.com/agg23/openfpga-NES

The core can output RGBS, RGsB, YPbPr, Y/C and SVGA scandoubler (50% scanlines) video signals.

🔹 Tested with Sony PVM-9044D

The Analogizer interface allow to mix game inputs from compatible SNAC gamepads supported by Analogizer (DB15 Neogeo, NES, SNES, PCEngine, PSX) with Analogue Pocket built-in controls or from Dock USB or wireless supported controllers (Analogue support).

All Analogizer adapter versions (v1, v2 and v3) has a side slide switch labeled as 'A B' that must be configured based on the used SNAC game controller. For example for use it with PSX Dual Shock or Dual Shock 2 native gamepad you must position the switch lever on the B side position. For the remaining game controllers you must switch the lever on the A side position. Be careful when handling this switch. Use something with a thin, flat tip such as a precision screwdriver with a 2.0mm flat blade for example. Place the tip on the switch lever and press gently until it slides into the desired position:

     ---
   B|O  |A  A/B switch on position B
     ---   
     ---
   B|  O|A  A/B switch on position A
     ---

• Analogizer is responsible for generating the correct encoded Y/C signals from RGB and outputs to R,G pins of VGA port. Also redirects the CSync to VGA HSync pin. The required external Y/C adapter that connects to VGA port is responsible for output Svideo o composite video signal using his internal electronics. Oficially only the Mike Simone Y/C adapters (active) designs will be supported by Analogizer and will be the ones to use. However, depending on the type of screen you have, passive Y/C adapters could work with different degrees of success.

Support native PCEngine/TurboGrafx-16 2btn, 6 btn gamepads and 5 player multitap using SNAC adapter and PC Engine cable harness (specific for Analogizer). Many thanks to Mike Simone for his great Y/C Encoder project.

You will need to connect an active VGA to Y/C adapter to the VGA port (the 5V power is provided by VGA pin 9). I'll recomend one of these (active):

• MiSTerAddons - Active Y/C Adapter
• MikeS11 Active VGA to Composite / S-Video
• Active VGA->Composite/S-Video adapter

Ported from the core originally developed by Ludvig Strigeus and heavily developed by @sorgelig, @greyrogue, @Kitrinx, @paulb-nl, and many more. Core icon by spiritualized1997. Latest upstream available at https://github.com/MiSTer-devel/NES_MiSTer

Please report any issues encountered to this repo. Most likely any problems are a result of my port, not the original core. Issues will be upstreamed as necessary.

I highly recommend the updater tools by @mattpannella and @RetroDriven. If you're running Windows, use the RetroDriven GUI, or if you prefer the CLI, use the mattpannella tool. Either of these will allow you to automatically download and install openFPGA cores onto your Analogue Pocket. Go donate to them if you can

To install the core, copy the Assets, Cores, and Platform folders over to the root of your SD card. Please note that Finder on macOS automatically replaces folders, rather than merging them like Windows does, so you have to manually merge the folders.

ROMs should be placed in /Assets/nes/common

PAL ROMs should boot, but there will be timing and sound issues as the core currently doesn't properly support PAL (proper support coming soon). I highly recommend you do not play PAL games, and instead use NTSC games (if they exist) at this time.

Core supports four players/controllers via the Analogue Dock. To enable four player mode, turn on Use Multitap setting.

This core has pairity with the MiSTer core's mapper support. See the full breakdown here. Please note that the VRC7 expansion audio chip is not supported in this core (but is in MiSTer) due to space constraints.

Are not supported with Analogizer version of NES core because the Pocket FPGA size don't allow to use Analogizer features and saves at the same time.

By configuring the Turbo Speed controller option in Core Settings, you can use the X and Y buttons (by default) as A/B turbo buttons. The period for each of the settings in NTSC are below (PAL will have different timings):

Expansion audio should be supported for every mapper including VRC7. If you encounter a game that is not playing the expanded audio, please report it.

The core has 5 palette options built in, changable in Core Settings/Palette. The palettes are known as:

• Kitrinx 34 by Kitrinx
• Smooth by FirebrandX (Default)
• Wavebeam by NakedArthur
• Sony CXA by FirebrandX
• PC-10 Better by Kitrinx

You can load external palettes as well. This palette is stored at Assets/nes/agg23.NES/custom.pal, and can be selected by the sixth option (Custom).

For testing, or to temporarily load a new palette, you can choose the Load Custom Palette option (make sure to choose Core Settings/Palette/Custom). This palette selection is temporary, and will be reset when quitting and reopening the core.

• Enable Analogizer- Enables/Disables the Analogizer adapter globall. When it is disabled, bypass the specific settings for Analogizer, this settings makes the SNAC adapter settings be ignored, using Pocket's default inputs, also forces the video output to be forwarded towards Pocket screen.

There are several options provided for tweaking the displayed video:

• Video Dejitter - Intended for use with Analogizer video output with a CRT screen to mimick the real behaviour of the NES. Disable it for use with the Pocket screen, the Dock output or Video Scalers as the OSSC.
• Hide Overscan - Hides the top and bottom 8 pixels of the video, which would normally be masked by the CRT. Adjusts the aspect ratio to correspond with this modification. This option does nothing in PAL mode
• Edge Masking - Masks the sides of the screen in black, depending on the chosen option. The auto setting automatically masks the left side when certain conditions are met.
• Square Pixels - The internal resolution of the NES is a 8:7 pixel aspect ratio (wide pixels), which roughly corresponds to what users would see on 4:3 display aspect ratio CRTs. Some games are designed to be displayed at 8:7 PAR (the core's default), and others at 1:1 PAR (square pixels). The Square Pixels option is provided to switch to a 1:1 pixel aspect ratio.
• Extra Sprites - Allows an extra 8 sprites to be displayed per line (up to 16 from the original 8). Will decrease flickering in some games

Core supports virtual lightguns by enabling the Use Zapper > Emulated Zapper (Stick) setting. The crosshair can be controlled with the D-Pad or left joystick, using the A button to fire. D-Pad aim sensitivity can be adjusted with the "D-Pad Aim Speed" setting. In addition, the Analogizer core version supports directly connecting the Zapper gun using a SNAC NES adapter by enabling the Use Zapper > SNAC Zapper setting

NOTE: Joystick support for aiming only appears to work when a controller is paired over Bluetooth and not connected to the Analogue Dock directly by USB.

1. Install Quartus 21.1 (x64)
2. Add to the system or user Path: <Quartus 21.1 Install Path>\quartus\bin64 clone the project files: git clone <repository-URL>
3. Open a PowerShell terminal to project folder openfpga-NES-Analogizer
4. Generate the four bitstreams files running the scripts: .\build.ps1 NTSC_SET1 .\build.ps1 NTSC_SET2 .\build.ps1 PAL_SET1 .\build.ps1 PAL_SET2 The generated *.rev bitstream files are stored in the 'core_bitstreams' folder
5. Copy the contents from 'pkg\pocket' folder to the root of Pocket SD Card.
6. Copy the bitstream files from 'core_bitstreams' to the Core folder 'Cores\RndMnkIII.NES' in the Pocket SD Card.