azya

Researching vintage LCD Games. Creating games and stuff for retro devices.

[azya @OneBitOnePixel]

Edla Game became the 50th LCD game to be emulated in BrickEmuPy. I'm not planning to stop yet, so follow along!

[Jumar Macato @jumarmacato]

From the Mask ROM image, to a C#/SDL3 app! Thank you so much for your hard work @OneBitOnePixel in the extraction! Now, we revel in nostalgic wonder!

[azya @OneBitOnePixel]

@OfficialShaaii Wow, thanks a lot for the info! Could you clarify whether someone has already decapped and examined the PP Color's MCU, or where this information came from?

[azya @OneBitOnePixel]

So, here are some findings:
1/3 D-Tector – uses a Sunplus SPL191 microcontroller (or something similar). The ROM die has been fully photographed.
https://t.co/FGBTXGyibj

[azya @OneBitOnePixel]

3/3 Digivice Ver. Revival – uses a Sonix MCU labeled "SLL86F8". Unfortunately, it appears to use flash memory, meaning the ROM cannot be read optically.
https://t.co/BhJopVdUW6

[azya @OneBitOnePixel]

2/3 Pocket Pikachu Color – the ROM die has been fully photographed, but the microcontroller architecture is unfortunately unknown (assuming it's even a general-purpose microcontroller).
https://t.co/1pgMBWLTcn

[azya @OneBitOnePixel]

@corybuckley @ElMadre6 @OKDecc Unfortunately, it uses an unknown microcontroller.

[azya @OneBitOnePixel]

Received two packages today: a Pocket Pikachu Color and a Digivice Revival from @ElMadre6, and a D-Tector from @OKDecc. I’ll be working on these devices soon.

[azya @OneBitOnePixel]

@Gujaba_Zilla @ElMadre6 @OKDecc Yes, unfortunately :( I still prefer broken or battered units – it doesn't feel as bad breaking them.

[azya @OneBitOnePixel]

@jaaminefayte @ElMadre6 @OKDecc Great work! Is this a public site?

[azya @OneBitOnePixel]

@jaaminefayte @ElMadre6 @OKDecc If you manage to send a package to Russia, I would certainly be happy to receive it.

[azya @OneBitOnePixel]

@___stets___ @ElMadre6 @OKDecc Indeed, the controls and the "peripherals" are very similar. I wonder if there is a connection between them.

[azya @OneBitOnePixel]

@HaplessJesster @ElMadre6 @OKDecc No, they will all be broken beyond repair :(

[azya @OneBitOnePixel]

@BrechaCeja @ElMadre @OKDecc Thanks! Dumping all three devices won't be easy, but I hope something works out.

[azya @OneBitOnePixel]

@MrTalida Thanks for helping me debug it!

[azya @OneBitOnePixel]

Puyolin (ぷよりん) LCD game has been dumped and emulated. It runs on a Holtek HT1190 4-bit microcontroller.

[azya @OneBitOnePixel]

@PxlDvl @Cooleach Кто вообще захочет играть в новый супер марио на двух экранах.

[さく(ゴ〇太) @jo2tmc]

UC-2000の2KB内のメモリーで動く独自のBASICを作ってグラフィック表示試してみた。
#UC2000
#SEIKO
#Python

[azya @OneBitOnePixel]

@jo2tmc It's great that someone else is developing for this watch, too! By the way, I also got into more or less serious assembly programming because of this watch.

[azya @OneBitOnePixel]

I'm currently working on an Epson RC-20 emulator. The watch has two processors: a 4-bit one and an 8-bit Z84. I'll only emulate the Z84 program execution mode, as I won't decap the 4bit MCU of these rare watches to dump mask ROM. The video shows a Chrome T-Rex demake I once wrote

[azya @OneBitOnePixel]

@Ajandemore61290 This watch is unique in that it can run programs loaded onto it, which is what initially piqued my interest. There are a few other models I'm interested in, like the Casio VDB-1000 and Seiko RC-1000, but I don't think I'll ever get my hands on one to reverse engineer.

[azya @OneBitOnePixel]

@earith32 Now I understand what you mean. I've seen a few such projects, but I don't think I've seen anything systematic.