JOTEGO

Scralings, one of the director patrons, asked me to look at 1982 Nintendo's Popeye arcade. It looked like an easy game to port. So I accepted... only to find out that this game has the oddest graphics system. The character layer is pretty much standard, but the background is drawn by the CPU on a RA

When you have to store the image for a sprite, you usually want to save memory space. If possible too, you want to make your sprite driver software simple too. Arcades like Ghosts'n Goblins or Contra (Gryzor) achieves this by having two bits associated with each sprite on the screen: one for horizon

(español abajo) When I went shopping for boards last Saturday, the seller had my children play a pandora box. My eldest kid found 1943 and played it. He has been playing a lot to the MiST version during the core development. On the way back home he told me: Dad, I like more your 1943 game. When I as

I have updated the MiSTer repository with the new optiosn for Ghosts'n Goblins: -Pause screen with patron credits (P key in MiST, F4 in MiSTer) -Fixed top two lines of the screen (sprites were missing in those lines) -Added ROM load option -New ROM generation file easier to use in MiST (a .bat file)

(español abajo) Thanks to your support I visited a sellert today and bought new games to translate to FPGA. I am really excited about these titles. All the PCB's worked but Rastan Saga had no sprites on screen and Nemesis (Gradius) seems to be completely broken. I may repair them as part of the conv

Here it is, resurrected from the PCB era, the 1943 arcade from CAPCOM. This is an awesome game with a lot of technical improvements over the prequel 1942. This has been a bit easier to do than the previous two games as I am getting more used to CAPCOM technology of the time. This beta version has tw

1943 core will feature rom load directly from the OSD menu. There are several versions of the game and it was worth doing it. Bruno Silva prepared the ROM files for all different sets and saved me a ton of time. Thanks a lot! On the sad news side, there won’t be a core release for February. This cor

(español abajo) I have finished analyzing 1943 schematics and I have started writting the new core. This game looks much more advanced than 1942 but if you were to check only the CPUs it is the same: two Z80 CPUs. However, there are things they have done to the GPU (which is made of discrete parts,

After a horrible week trying to fix one bug, I finally make the 1942 core public. The MiST binaries are attached to this post. MiSTer binaries are in Sorleig's repository and you should be able to get updates following the standard MiSTer procedures. The public version shares the same romset as MiST

This is being a slow week. I have been working to prepare the public release of 1942 and Ghosts'n Goblins cores. Most of this work is towards increasing reliability, and uniformity between the two cores and between the MiST, MiSTer and ZX-UNO versions. Very gray work but I hope it will pay back when

Los compañeros de AmigaWave, y en especial Carlos, le han dedicado una buena parte de su último programa a MiSTer y al core de 1942 para MiST. Es un repaso muy interesante para todos los nuevos a MiSTer. Os dejo el enlace al vídeo justo donde empieza esta sección. Programa #145 - AGD para Dragon/COC

SmokeMonster made a special for the beta release yesterday. Very interesting show going through computer ports of the arcade too. I love the way SmokeMonster captures the beauty of these systems. MiSTer 1942 ARCADE Release Party. Incredible Capcom FPGA Cores by Jotego! : LIVE SmokeMonster (YouTube)

I finished all the pieces and now the game works in MiST. Jeez, it's so much to play. It feels easier than in the emulator and more engaging. I will work in the MiSTer/ZX-UNO conversions now. The audio of this post has been captured directly from MiST. Stay tune because I will release it for Patreon

(español abajo) It's almost there! After struggling with a sprites issue I concluded that the schematics available for 1942 must belong to a different CAPCOM game. Most of it seems to match but sprite addressing is different. The schematics assume that only 8kB x 4 of sprite ROMs are available but t

Indcsion has uploaded a long play of G&G using the cheat mode of the Japanese rom. Remember that you can also do this on MiST if you generate the rom file for the Japanese game as it is enabled by default on the MiST version. MiSTer FPGA Arcade Ghosts'N Goblins (Japan Invulnerability)(Full Game) (Yo

(Español detrás) Sprites are very special because they can appear anywhere on the screen. That doesn't happen with background tiles or the top layer of characters showing the score. Those tiles and characters will occur at a well defined row and column and the circuits needed to draw them is rather

I started working on porting the 1942 arcade schematics to Verilog. This board is slightly older than Ghosts'n Goblins. The circuits are simpler and you can see they were less experienced when they made the electronics. The background can only scroll in one direction, the number of sprites is more l

(English below) Aquí tenéis el enlace permanente al core de Ghosts'n Goblins para MiST completo. ¡A disfrutar! This is the full Ghosts'n Goblins core for MiST. Enjoy! https://www.dropbox.com/s/0rp7rmif13ilyjn/mist-gng.zip?dl=0