Post AviN8f0edV2YQSyig4 by foone@digipres.club
(DIR) More posts by foone@digipres.club
(DIR) Post #AvhaqSx2RnAkFbBplw by foone@digipres.club
2025-07-01T21:36:37Z
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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.
(DIR) Post #AvhauhjfQBkLGHxMwa by foone@digipres.club
2025-07-01T21:28:19Z
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It's powered by a Sunplus SPHE8203R.
(DIR) Post #Avhb0RfO4vqtA6gyhM by foone@digipres.club
2025-07-01T21:39:18Z
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And an AiP1628: This is an LED driver, which used to drive the front panel 7-segment display.
(DIR) Post #Avhb70I4GE1yHdubM8 by foone@digipres.club
2025-07-01T21:30:12Z
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Sunplus calls this a "DVD Single Chip MPEG A/V Processor"https://w3.sunplus.com/products/sphe8203.asp
(DIR) Post #Avhb9iSqzgTtrkFaUa by foone@digipres.club
2025-07-01T21:40:56Z
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And here's a Winbond W25Q16JV: a 3v 2-megabytes SPI flash
(DIR) Post #AvhbEp2DzaXJgxEIUq by foone@digipres.club
2025-07-01T21:41:52Z
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@snowfox nah, that's the result of adhesive thermal paste
(DIR) Post #AvhbHqYylaqhIgzb0q by foone@digipres.club
2025-07-01T21:42:22Z
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@mgjetson me, apparently
(DIR) Post #AvhbXDt8KKE5zAkeEi by foone@digipres.club
2025-07-01T21:23:54Z
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Nothing says UART like... video sync signals?
(DIR) Post #AvhbkzO928s14MoxV2 by foone@digipres.club
2025-07-01T21:47:36Z
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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?
(DIR) Post #Avhbpv3UZUAb4vVmnA by ozzelot@mstdn.social
2025-07-01T21:49:03Z
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@fooneOh god it's got a NES emulator doesn't it
(DIR) Post #AvhbuBlaNiIy48AjAm by ozzelot@mstdn.social
2025-07-01T21:49:50Z
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@fooneMaybe even a famiclone cause who knows, they might have had space on that die and nothing better to do with it!
(DIR) Post #AvhbwDzn44XBYfmqo4 by foone@digipres.club
2025-07-01T21:49:09Z
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And the board design schematic lists pins GAME_D0, GAME_D1, GAME_LATCH, and GAME_DATA
(DIR) Post #Avhc0dZLvOC021Wbdg by foone@digipres.club
2025-07-01T21:25:15Z
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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
(DIR) Post #Avhc6N2iHZc4VszZBo by foone@digipres.club
2025-07-01T21:51:38Z
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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?
(DIR) Post #Avhc8IUUB5XIyTtvV2 by ozzelot@mstdn.social
2025-07-01T21:52:23Z
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@fooneIf we had better docs, could it run 9front?!
(DIR) Post #AvhcEmSxdvB5gAHNw0 by foone@digipres.club
2025-07-01T21:53:06Z
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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/
(DIR) Post #AvhcpSfgCcWT07ieTA by foone@digipres.club
2025-07-01T21:59:42Z
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I found some source on verysource, and while I can't download the whole thing, I can get enough to confirm it's MIPS
(DIR) Post #AvhcvqBDi7SDeKVuyG by foone@digipres.club
2025-07-01T22:00:46Z
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They've got a tetris game in the source and also mentions of NES games?
(DIR) Post #AvhcyVzFFEVdtGBhLs by ozzelot@mstdn.social
2025-07-01T22:01:49Z
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@fooneCalled it
(DIR) Post #Avhd5dAUwUXsBrqPcO by foone@digipres.club
2025-07-01T22:02:38Z
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@yuriaugustus I'm mostly self-taught for EE, I went to school for comp-sci
(DIR) Post #Avhd8QENV3RUvzzSBU by foone@digipres.club
2025-07-01T22:02:50Z
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@ozzelot yup!
(DIR) Post #Avhd8UfoyxlsiGrQW0 by ozzelot@mstdn.social
2025-07-01T22:03:37Z
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@fooneTo be fair it's a very obvious call
(DIR) Post #Avhddl5hza0KblsSvY by foone@digipres.club
2025-07-01T22:08:48Z
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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
(DIR) Post #AvhdfrPNTYyumQ50dM by ozzelot@mstdn.social
2025-07-01T22:09:38Z
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@fooneDoes the "16" mean 16-bit? Surely not. Surely they don't have a genesis in there...
(DIR) Post #AvheK20hTeLnFEgyVU by foone@digipres.club
2025-07-01T22:16:28Z
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anyone got some VerySource credits? https://en.verysource.com/item/8203r_rar-561540.html
(DIR) Post #Avhf3dA0CWXrUjmozY by foone@digipres.club
2025-07-01T22:24:45Z
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@gsuberland yep
(DIR) Post #Avhnj8VXM9u2DtA4jA by foone@digipres.club
2025-07-02T00:01:47Z
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@lion @kbity yeah! I saw native32 mentioned in some related datasheets. I'm not 100% sure this one supports it, though
(DIR) Post #AviMst1CmeN1ExiLku by krono@toot.berlin
2025-07-02T06:35:38Z
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@foone Back in the days when the IFA in Berlin still was something™
(DIR) Post #AviN8f0edV2YQSyig4 by foone@digipres.club
2025-07-02T06:38:34Z
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@Rib ooh, definitely!
(DIR) Post #Avj9hYF0aYXZMwOZXM by keen456@infosec.exchange
2025-07-02T15:42:36Z
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@foone If you want some money for credits, let me know- I can send you a donation for credits.
(DIR) Post #AvjpnI75ezJPA76xDk by foone@digipres.club
2025-07-02T23:34:24Z
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okay I've got a copy. Some fun stuff in here:void generate_registration_code(BYTE code[8+1]);void drm_rental_count_update();void drm_save_rental_file(int drm_enable, int nRet);
(DIR) Post #AvjqFfX8B8JDuFp5WK by foone@digipres.club
2025-07-02T23:39:32Z
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there's code here to support PS2 mice? ON A DVD PLAYER?
(DIR) Post #AvjqLJytDqTenhVCNc by ozzelot@mstdn.social
2025-07-02T23:41:02Z
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@fooneI was very confoozled as I just purchased my approximately billionth playstation 2
(DIR) Post #AvjqNf2Ru0TsgjHaYi by foone@digipres.club
2025-07-02T23:41:01Z
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apparently you activate the UART by sending it "uart"
(DIR) Post #AvjqPXSh2kOnliSBZQ by ozzelot@mstdn.social
2025-07-02T23:41:47Z
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@ada3 billion discs run Java@foone
(DIR) Post #AvjqTSqW98qIbyT8wS by n_dimension@infosec.exchange
2025-07-02T23:41:59Z
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@foone adminadmin
(DIR) Post #AvjqYtKb6QY6CZ7uTY by Sylvhem@eldritch.cafe
2025-07-02T23:42:17Z
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@foone I suppose that’s what happen when your device is just a hodgepodge of generic code and components…
(DIR) Post #AvjqZRl16hssyLkUNM by burnitdown@beige.party
2025-07-02T23:42:23Z
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@foone not meart. uart.
(DIR) Post #AvjqfCHFZhCGhPZG2i by foone@digipres.club
2025-07-02T23:44:10Z
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and these programmers were clearly paid by the IFDEF
(DIR) Post #Avjqhr0H7uetaXtWzY by ozzelot@mstdn.social
2025-07-02T23:45:06Z
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@fooneBetter than getting paid by the IDF
(DIR) Post #Avjqhv3c3RhmA3UFkW by foone@digipres.club
2025-07-02T23:44:34Z
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that's how you know it's embedded as fuck
(DIR) Post #AvjqtGqrMdoAwMw0bw by foone@digipres.club
2025-07-02T23:46:46Z
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there's code here to score karaoke results. it mainly works via rand()or, to be accurate, robert_random()
(DIR) Post #Avjr3BOmUblovNWljE by foone@digipres.club
2025-07-02T23:48:31Z
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#ifdef SUPPORT_GAME_TETRIS TerisPolling(diff); #endif TERIS? FUCKING TERIS?
(DIR) Post #AvjrAzWeWJeQPwvtC4 by ozzelot@mstdn.social
2025-07-02T23:50:22Z
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@fooneApparently it was always meant to be Terith.
(DIR) Post #AvjrC16e84sNbpG1Xk by whitequark@mastodon.social
2025-07-02T23:50:04Z
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@foone that makes total sense to me
(DIR) Post #AvjrDgSrqSqsAZRiym by jaawerth@functional.cafe
2025-07-02T23:50:49Z
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@ozzelot @foone not gonna lie, I saw the IFDEF post completely out of context in my feed and for a minute I thought that was the same pun 💀
(DIR) Post #AvjrIRyz7GpIhbk2Uq by foone@digipres.club
2025-07-02T23:50:25Z
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@r wow
(DIR) Post #AvjrQfIPV9nuJFkEwS by tekhedd@byteheaven.net
2025-07-02T23:53:09Z
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@ozzelot @foone It's spelled Teriz but it's pronounced Terith.
(DIR) Post #AvjrZ3vjnOEl1o8zR2 by foone@digipres.club
2025-07-02T23:54:17Z
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there's a hardcoded "super password".It's 5168. What's it do? No fucking idea
(DIR) Post #Avjrc8TJMnzHyxJU92 by Canageek@wandering.shop
2025-07-02T23:54:36Z
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@foone Sorry I thought Tetris was like default. we need some games for this thing, why is it shocking that it has tetris in it?
(DIR) Post #AvjrevCd9oRDhJq6fA by Sylvhem@eldritch.cafe
2025-07-02T23:54:57Z
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@foone :blob_fucking_weird_cat:
(DIR) Post #Avjri6hyptZKFb1QNU by foone@digipres.club
2025-07-02T23:55:57Z
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@Canageek not tetris, teris!
(DIR) Post #AvjrqlegTr0ZYsbsIK by Canageek@wandering.shop
2025-07-02T23:57:13Z
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@foone ohhhhh
(DIR) Post #AvjsDAeMEP4BS68j7w by foone@digipres.club
2025-07-03T00:01:32Z
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// Developed at SunPro, a Sun Microsystems, Inc. business.wait what?
(DIR) Post #AvjsGQ23UsSA1nlzTE by huronbikes@cyberplace.social
2025-07-03T00:01:49Z
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@foone Blum Blum Shub Bob, we called him.
(DIR) Post #AvjsJO0fTMfmcmXTqy by foone@digipres.club
2025-07-03T00:02:32Z
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this is a SunPlus device, not SunPro. And SunPlus has nothing to do with Sun Microsystems as far as I know
(DIR) Post #AvjsNWA56eJV46uc4G by foone@digipres.club
2025-07-03T00:03:21Z
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okay, that's because they're using a sun-derived math library.
(DIR) Post #AvjsbpYXnJvBGqBAqO by thepi@urusai.social
2025-07-03T00:05:59Z
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@foone Yeah Teri wrote that polling code. Like how My wrote MySQL.
(DIR) Post #AvjtB1zbY24bydcaxc by foone@digipres.club
2025-07-03T00:12:24Z
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There's code here to copy a CD to a hard drive. So I guess you could use this in a set top box with an internal HDD
(DIR) Post #AvjtseYA4INw0qaNEW by amsomniac@mastodon.mit.edu
2025-07-03T00:20:12Z
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@foone I love its huge (ground?) pins
(DIR) Post #AvjuPr7QMJQ4YAuav2 by foone@digipres.club
2025-07-03T00:26:16Z
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@amsomniac yeah! some motor drivers do that, because they make a lot of heat. big grounds make it able to better dissipate the heat into the PCB's groundplane
(DIR) Post #AvjuYXaQLgHqZucLoW by jpm@aus.social
2025-07-03T00:27:45Z
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@foone the SunPro compiler toolchain is still a thing for developing on Solaris/SPARC.
(DIR) Post #AvjujPuxCZBhylPGO8 by rotopenguin@mastodon.social
2025-07-03T00:29:45Z
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@foone is there a parental mode? (Can you tell a DVD player to lock out naughty MPAA ratings?)
(DIR) Post #Avjxrp4brBaqB3cfJY by blami@mastodon.online
2025-07-03T01:04:48Z
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@foone SunPro and SunSoft were early Sun Microsystems subsidiaries. See msun https://github.com/freebsd/freebsd-src/blob/main/lib/msun/src/s_tan.c or https://github.com/freebsd/freebsd-src/blob/main/lib/msun/src/e_sinh.c . Probably just name clash?That’s why compiler variable was SUNPRO_CC.
(DIR) Post #Avk4TsFH6x1gkD8f2G by gregly@retro.pizza
2025-07-03T02:18:49Z
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@foone Ah, that brings back memories. Sweet, sweet preprocessor abuse… 🥹
(DIR) Post #AvkkUJn8tIjiFhsGfo by jeawallace@topspicy.social
2025-07-03T10:09:34Z
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@foone SunPlus is popping up a lot in the MAME plug and play projects. It's not a Genesis on a chip, but people used their myriad variants to achieve fairly similar effects. Certainly there are SunPlus coded Tetris variants out there.
(DIR) Post #AvnglFmTEuvCOSGAL2 by jackemled@furry.engineer
2025-07-04T20:11:57Z
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@foone It's so weird how NES hardware emulators seem to be in absolutely every instant ewaste device you can order on the Internet but none of them have any documentation on how to use the emulator, like how to load a ROM or connect a controller or anything, & it seems like it's never intended to actually be used. I wonder why they're there if you're not supposed to use them, wouldn't it be cheaper to not put a NES emulator on the chip?