I'm taking apart a "Mini DVD Player HDMI, DESOBRY 1080P HD Small Compact DVD Player for Smart TV with All Region Free, DVD CD Player with AV Output, USB/TF Card Input, Remote Control, Support PAL/NTSC"
It's a tiny DVD player (discman sized!) with USB/SD card slots, cause it can play the usual media formats
Sunplus calls this a "DVD Single Chip MPEG A/V Processor"
Naturally for a Single Chip system, it has four chips.
Here's the next one, the SA5888: Silan Microelectronics, 5-channel BTL driver IC.
This drives the motors and actuators of the optical drive.
And an AiP1628: This is an LED driver, which used to drive the front panel 7-segment display.
The documentation of this is, of course, lacking. gotta keep your 2008 DVD decoder chip secret.
But one of the interesting docs that have leaks mentions it has game controller support?
And the board design schematic lists pins GAME_D0, GAME_D1, GAME_LATCH, and GAME_DATA
And Sunplus never seems to give any more detail on what this chip is powered by, but they do say it's "32-bit RISC".
so... MIPS, maybe?
they launched this chip August 30th, 2007:
https://www.design-reuse.com/news/202513841-sunplus-presents-world-s-first-dvd-soc-solution-sphe8203a-with-divx-hd-playability/
I found some source on verysource, and while I can't download the whole thing, I can get enough to confirm it's MIPS
They've got a tetris game in the source and also mentions of NES games?
man this thing has a lot of registers. They put a lot in this chip, it's a real SoC. There's a DSP on here, and a "GAME16" core.
Probably they just stuffed one of their famicom-plus-on-a-chip cores on it
@lion @foone @kbity OOOOO so there is emulation progress! I stumbled upon the list of undumped games on the bootleg games wiki and they seemed very interesting