David Shadoff
@dshadoff.bsky.social
Mostly PC Engine and PC-FX reverse-engineering and development. I also contribute to MiSTer FPGA cores and a Mednafen fork. (hobby).
Alright, I ordered my Tenshi no Uta.
Fingers crossed for a top-notch translation !
limitedrungames.com/collections/...
Fingers crossed for a top-notch translation !
limitedrungames.com/collections/...
Limited Run #317: Tenshi no Uta: The Angel Verse Collection
– Limited Run Games
Tenshi no Uta: The Angel Verse Collection is region-free. This is an open pre-order for a limited time. PRE-ORDERS CLOSE ON SUNDAY, FEBRUARY 1, 2026, AT 11:59 PM EASTERN TIME. Let These Feelings Reach...
limitedrungames.com
January 2, 2026 at 3:38 PM
Alright, I ordered my Tenshi no Uta.
Fingers crossed for a top-notch translation !
limitedrungames.com/collections/...
Fingers crossed for a top-notch translation !
limitedrungames.com/collections/...
Finally starting to (slowly) dig into that TRS-80 TC-8 tape device from JPC Products, circa 1980.
Reading the EPROM was a challenge; National Semi MM27C16Q was reading on my TL866 programmer, but verify (to confirm) was coming up with LOTS of different data, failing to verify.
Reading the EPROM was a challenge; National Semi MM27C16Q was reading on my TL866 programmer, but verify (to confirm) was coming up with LOTS of different data, failing to verify.
January 1, 2026 at 8:55 PM
Finally starting to (slowly) dig into that TRS-80 TC-8 tape device from JPC Products, circa 1980.
Reading the EPROM was a challenge; National Semi MM27C16Q was reading on my TL866 programmer, but verify (to confirm) was coming up with LOTS of different data, failing to verify.
Reading the EPROM was a challenge; National Semi MM27C16Q was reading on my TL866 programmer, but verify (to confirm) was coming up with LOTS of different data, failing to verify.
Reposted by David Shadoff
🥳 Welcome to the Public Domain: creative works from 1930 & sound recordings published in 1925! Duke Law's Center for the Study of the Public Domain has highlighted some of the most anticipated works entering the #publicdomain in 2026!
More ➡️ blog.archive.org/public-domai...
@dukelaw.bsky.social
More ➡️ blog.archive.org/public-domai...
@dukelaw.bsky.social
January 1, 2026 at 5:02 AM
🥳 Welcome to the Public Domain: creative works from 1930 & sound recordings published in 1925! Duke Law's Center for the Study of the Public Domain has highlighted some of the most anticipated works entering the #publicdomain in 2026!
More ➡️ blog.archive.org/public-domai...
@dukelaw.bsky.social
More ➡️ blog.archive.org/public-domai...
@dukelaw.bsky.social
I've been following Renesas' SLG479xx FPGAs since they were announced in 2021, and infromation has been hard to find for most of this time.
The 2K LUT devices now have published datasheets, much more quickly than the 1K LUT devices did.
But sadly, none of these are aimed at prototyping.
The 2K LUT devices now have published datasheets, much more quickly than the 1K LUT devices did.
But sadly, none of these are aimed at prototyping.
January 1, 2026 at 4:59 AM
I've been following Renesas' SLG479xx FPGAs since they were announced in 2021, and infromation has been hard to find for most of this time.
The 2K LUT devices now have published datasheets, much more quickly than the 1K LUT devices did.
But sadly, none of these are aimed at prototyping.
The 2K LUT devices now have published datasheets, much more quickly than the 1K LUT devices did.
But sadly, none of these are aimed at prototyping.
Supper has made his Emerald Dragon translation available now !
This is one of the most long-awaited translations for the PC Engine platform, and I'm looking forward to playing it !
stargood.org/trans/emdr.php
This is one of the most long-awaited translations for the PC Engine platform, and I'm looking forward to playing it !
stargood.org/trans/emdr.php
Emerald Dragon - stargood
stargood.org
December 31, 2025 at 2:26 PM
Supper has made his Emerald Dragon translation available now !
This is one of the most long-awaited translations for the PC Engine platform, and I'm looking forward to playing it !
stargood.org/trans/emdr.php
This is one of the most long-awaited translations for the PC Engine platform, and I'm looking forward to playing it !
stargood.org/trans/emdr.php
Tenshi no Uta is coming to Switch.
Hoping this will be great.
The Cosmic Fantasy translations were "stretch goals" on the Japanese crowdfunding, and I wasn't a big fan - this wasn't done as a stretch goal, so maybe it'll get better treatment.
limitedrungames.com/collections/...
Hoping this will be great.
The Cosmic Fantasy translations were "stretch goals" on the Japanese crowdfunding, and I wasn't a big fan - this wasn't done as a stretch goal, so maybe it'll get better treatment.
limitedrungames.com/collections/...
Tenshi no Uta: The Angel Verse Collection
– Limited Run Games
Tenshi no Uta: The Angel Verse Collection Pre-orders Close February 1, 2026
limitedrungames.com
December 31, 2025 at 4:50 AM
Tenshi no Uta is coming to Switch.
Hoping this will be great.
The Cosmic Fantasy translations were "stretch goals" on the Japanese crowdfunding, and I wasn't a big fan - this wasn't done as a stretch goal, so maybe it'll get better treatment.
limitedrungames.com/collections/...
Hoping this will be great.
The Cosmic Fantasy translations were "stretch goals" on the Japanese crowdfunding, and I wasn't a big fan - this wasn't done as a stretch goal, so maybe it'll get better treatment.
limitedrungames.com/collections/...
I just realized that Winter Comiket is happening now.
It looks like High Risk Revoloution has produced some new Hudson Densetsu books, available at Comiket:
www.highriskrevolution.com/wp/gamelife/...
It looks like High Risk Revoloution has produced some new Hudson Densetsu books, available at Comiket:
www.highriskrevolution.com/wp/gamelife/...
31日のお品書きやスペースなど | Colorful Pieces of Game
http://www.highriskrevolution.com/wp/gamelife/2025/12/29/31日のお品書きやスペースなど/
December 31, 2025 at 4:44 AM
I just realized that Winter Comiket is happening now.
It looks like High Risk Revoloution has produced some new Hudson Densetsu books, available at Comiket:
www.highriskrevolution.com/wp/gamelife/...
It looks like High Risk Revoloution has produced some new Hudson Densetsu books, available at Comiket:
www.highriskrevolution.com/wp/gamelife/...
Each time I feel that life is becoming too serious, I remember some paintings in Japan which are important cultural artificats, and hang in prestigious museums and art gallerys.
...the subject of the paintings ?
"He-gassen", or "fart battles"
en.wikipedia.org/wiki/He-gassen
...the subject of the paintings ?
"He-gassen", or "fart battles"
en.wikipedia.org/wiki/He-gassen
He-gassen - Wikipedia
en.wikipedia.org
December 30, 2025 at 1:34 AM
Each time I feel that life is becoming too serious, I remember some paintings in Japan which are important cultural artificats, and hang in prestigious museums and art gallerys.
...the subject of the paintings ?
"He-gassen", or "fart battles"
en.wikipedia.org/wiki/He-gassen
...the subject of the paintings ?
"He-gassen", or "fart battles"
en.wikipedia.org/wiki/He-gassen
Reposted by David Shadoff
shel silverstein was a prophet
December 27, 2025 at 4:08 PM
shel silverstein was a prophet
The compression used in (PC Engine) Ys 4 and Emerald Dragon (etc.) was pretty simple.
But when I wrote a compressor for it, I found that my compressor had a better compression ratio than the actual game. WHAT !?
Hudson's compressor must have had some kind of bug.
But when I wrote a compressor for it, I found that my compressor had a better compression ratio than the actual game. WHAT !?
Hudson's compressor must have had some kind of bug.
December 27, 2025 at 5:29 PM
The compression used in (PC Engine) Ys 4 and Emerald Dragon (etc.) was pretty simple.
But when I wrote a compressor for it, I found that my compressor had a better compression ratio than the actual game. WHAT !?
Hudson's compressor must have had some kind of bug.
But when I wrote a compressor for it, I found that my compressor had a better compression ratio than the actual game. WHAT !?
Hudson's compressor must have had some kind of bug.
Good article on how to disable AI features on Chrome/Google search:
(Some items are different than my install - the author may be on a development build - but most work great)
www.theregister.com/2025/12/26/d...
(Some items are different than my install - the author may be on a development build - but most work great)
www.theregister.com/2025/12/26/d...
Stop the slop by disabling AI features in Chrome
: The most popular desktop browser is festooned with Google AI, but you can make at least some of it go away
www.theregister.com
December 27, 2025 at 1:25 AM
Good article on how to disable AI features on Chrome/Google search:
(Some items are different than my install - the author may be on a development build - but most work great)
www.theregister.com/2025/12/26/d...
(Some items are different than my install - the author may be on a development build - but most work great)
www.theregister.com/2025/12/26/d...
The french for eggnog (at least on the cartons here in Ontario) seems to be "lait de poule".
Each time I see this, I think "chicken milk", which seems wrong on several levels...
Each time I see this, I think "chicken milk", which seems wrong on several levels...
December 26, 2025 at 6:21 PM
The french for eggnog (at least on the cartons here in Ontario) seems to be "lait de poule".
Each time I see this, I think "chicken milk", which seems wrong on several levels...
Each time I see this, I think "chicken milk", which seems wrong on several levels...
Starting with the original, Lafcadio Hearn, I suppose...
incredibly how quickly after the perry expedition that they invented weebs
Someone should buy me this for Christmas
December 26, 2025 at 6:17 PM
Starting with the original, Lafcadio Hearn, I suppose...
Just a first peek of the TC-8 internals - not a full teardown yet.
Earlier, I didn't remember where the driver software was - after opening it up, I realized that this had a daughterboard with a PROM on it, so the driver software didn't need to be loaded from tape.
Earlier, I didn't remember where the driver software was - after opening it up, I realized that this had a daughterboard with a PROM on it, so the driver software didn't need to be loaded from tape.
December 26, 2025 at 1:11 AM
Just a first peek of the TC-8 internals - not a full teardown yet.
Earlier, I didn't remember where the driver software was - after opening it up, I realized that this had a daughterboard with a PROM on it, so the driver software didn't need to be loaded from tape.
Earlier, I didn't remember where the driver software was - after opening it up, I realized that this had a daughterboard with a PROM on it, so the driver software didn't need to be loaded from tape.
Watching YouTube videos in French makes me feel terrible about my French ability, even though I studied it all through school.
HOWEVER, I realized:
Turning on (French) subtitles improves my comprehension substantially !
...In-person interactions don't come with subtitles though.
HOWEVER, I realized:
Turning on (French) subtitles improves my comprehension substantially !
...In-person interactions don't come with subtitles though.
December 24, 2025 at 6:06 PM
Watching YouTube videos in French makes me feel terrible about my French ability, even though I studied it all through school.
HOWEVER, I realized:
Turning on (French) subtitles improves my comprehension substantially !
...In-person interactions don't come with subtitles though.
HOWEVER, I realized:
Turning on (French) subtitles improves my comprehension substantially !
...In-person interactions don't come with subtitles though.
Reposted by David Shadoff
The Pro Fighter Turbo SNES copier has "Gold Finger" ROM patches for 350 games built-in. Both the game names and codes are mostly stored in plaintext format in the copier's ROM. When loading a game from disk, the copier gives you the option of auto-patching the game (with all codes at once for it).
December 23, 2025 at 2:05 AM
The Pro Fighter Turbo SNES copier has "Gold Finger" ROM patches for 350 games built-in. Both the game names and codes are mostly stored in plaintext format in the copier's ROM. When loading a game from disk, the copier gives you the option of auto-patching the game (with all codes at once for it).
Reposted by David Shadoff
I was serious! One more article to close out the year...
Let's take a quick look at Sega's 1991 beat-em-up Riot City, a supposedly Japanese only game that has an English localization hidden away, as well as a little known alternate, spicy ending...
🔗 sudden-desu.net/entry/riot-c...
Let's take a quick look at Sega's 1991 beat-em-up Riot City, a supposedly Japanese only game that has an English localization hidden away, as well as a little known alternate, spicy ending...
🔗 sudden-desu.net/entry/riot-c...
December 23, 2025 at 2:10 AM
There were really a lot of hardware add-ons for the TRS-80 Model 1 back around 1980, most of which nobody remembers today. I found my old Model 1 packed away, and it has the "Holmes Engineering 48K Internal Memory". Here's a longer list of those hardware items:
www.trs-80.org/category-har...
www.trs-80.org/category-har...
Hardware
TRS-80.org is a source for information about the Radio Shack TRS-80 line of computers, hardware, and software, with articles, interviews, and more!
www.trs-80.org
December 21, 2025 at 4:53 PM
There were really a lot of hardware add-ons for the TRS-80 Model 1 back around 1980, most of which nobody remembers today. I found my old Model 1 packed away, and it has the "Holmes Engineering 48K Internal Memory". Here's a longer list of those hardware items:
www.trs-80.org/category-har...
www.trs-80.org/category-har...
Back in the days of do-it-yourself PC Board etching, long before CAD for PCBs, it was a different world.
One method was to use photoresist; it was possible to buy dry-transfer templates of footprints to apply to a clear layer, and expose it to light.
One method was to use photoresist; it was possible to buy dry-transfer templates of footprints to apply to a clear layer, and expose it to light.
December 21, 2025 at 1:35 AM
Back in the days of do-it-yourself PC Board etching, long before CAD for PCBs, it was a different world.
One method was to use photoresist; it was possible to buy dry-transfer templates of footprints to apply to a clear layer, and expose it to light.
One method was to use photoresist; it was possible to buy dry-transfer templates of footprints to apply to a clear layer, and expose it to light.
Cleaning up some memories from the basement of my parents' house.
I wonder if anybody else out there knows what this is, or perhaps had one ? (I know what it is, but not sure where the software driver is at the moment).
It seems to have been somewhat rare even back in the day.
I wonder if anybody else out there knows what this is, or perhaps had one ? (I know what it is, but not sure where the software driver is at the moment).
It seems to have been somewhat rare even back in the day.
December 21, 2025 at 1:20 AM
Cleaning up some memories from the basement of my parents' house.
I wonder if anybody else out there knows what this is, or perhaps had one ? (I know what it is, but not sure where the software driver is at the moment).
It seems to have been somewhat rare even back in the day.
I wonder if anybody else out there knows what this is, or perhaps had one ? (I know what it is, but not sure where the software driver is at the moment).
It seems to have been somewhat rare even back in the day.
Reposted by David Shadoff
Can we squeeze in one last article before the end of the year? I think so!
Let's take a quick look at Rockman 2: The Power Fighters for the CPS-2 hardware, which has a couple of disabled debug tools leftover for us to play with.
🔗 sudden-desu.net/entry/rockma...
Let's take a quick look at Rockman 2: The Power Fighters for the CPS-2 hardware, which has a couple of disabled debug tools leftover for us to play with.
🔗 sudden-desu.net/entry/rockma...
December 17, 2025 at 12:10 PM
Can we squeeze in one last article before the end of the year? I think so!
Let's take a quick look at Rockman 2: The Power Fighters for the CPS-2 hardware, which has a couple of disabled debug tools leftover for us to play with.
🔗 sudden-desu.net/entry/rockma...
Let's take a quick look at Rockman 2: The Power Fighters for the CPS-2 hardware, which has a couple of disabled debug tools leftover for us to play with.
🔗 sudden-desu.net/entry/rockma...
Reposted by David Shadoff
Happy Friday! We're thrilled to announce the full run of Marukatsu PC Engine is now available to download/view. We believe we have now scanned every Japanese PC Engine focused magazine completely. Enjoy and please spread the word by liking/RT'ing. www.gamingalexandria.com/wp/2025/12/m...
December 12, 2025 at 3:52 PM
Happy Friday! We're thrilled to announce the full run of Marukatsu PC Engine is now available to download/view. We believe we have now scanned every Japanese PC Engine focused magazine completely. Enjoy and please spread the word by liking/RT'ing. www.gamingalexandria.com/wp/2025/12/m...
Reposted by David Shadoff
Necros no Yousai - English Translation (TG16) Added
Necros no Yousai - English Translation - Content
All 7 chapters of “Fortress of Necros” are now fully playable in English. A full playthrough was undertaken throughout the process to make sure no context was missed. A lowercase font has also been in...
romhack.ing
December 12, 2025 at 11:11 PM
Necros no Yousai - English Translation (TG16) Added
Reposted by David Shadoff
This game is a tribute to RPGs that came before, the action RPG to END ALL action RPG's, the game that reminds me why I play video games, and a celebration of gaming! This time I'm finally doing the original PC-88 version of Falcom's classic, Popful Mail!
youtu.be/spMcKsh1R-4
youtu.be/spMcKsh1R-4
December 8, 2025 at 1:55 PM
This game is a tribute to RPGs that came before, the action RPG to END ALL action RPG's, the game that reminds me why I play video games, and a celebration of gaming! This time I'm finally doing the original PC-88 version of Falcom's classic, Popful Mail!
youtu.be/spMcKsh1R-4
youtu.be/spMcKsh1R-4
This evening, my Windows 11 computer displayed a series of popup messages stating that there was a "problem with an app" so it "updated the file association", over and over until it had re-associated all files back to Microsoft defaults.
What problem? Using other software is a problem?
What problem? Using other software is a problem?
December 2, 2025 at 4:10 AM
This evening, my Windows 11 computer displayed a series of popup messages stating that there was a "problem with an app" so it "updated the file association", over and over until it had re-associated all files back to Microsoft defaults.
What problem? Using other software is a problem?
What problem? Using other software is a problem?