Falco Girgis
@falcogirgis.bsky.social
Sega Dreamcast developer on a quest to correct the timeline of video gaming history. Working on the modern, open-source indie DC SDK and library OS, KallistiOS.
Hand-optimizing SH4 assembly for jnmartins upcoming port of #StarFox 64 to the Sega #Dreamcast, so dropping bombs doesn’t drop FPS!
#gamedev #retrogaming #cplusplus
#gamedev #retrogaming #cplusplus
November 19, 2025 at 3:53 AM
Hand-optimizing SH4 assembly for jnmartins upcoming port of #StarFox 64 to the Sega #Dreamcast, so dropping bombs doesn’t drop FPS!
#gamedev #retrogaming #cplusplus
#gamedev #retrogaming #cplusplus
Reposted by Falco Girgis
Now that we have the GabeCube where's the GabeCast?
November 14, 2025 at 12:20 PM
Now that we have the GabeCube where's the GabeCast?
jnmartin has been putting the finishing touches on his #StarFox 64 port to the Sega #Dreamcast! To hype up its upcoming release, here's a direct hardware capture of the intro scene!
Notice how crisp and sharp the textures look now? ...can you spot the blasphemous texture swap?🤣
#n64 #retrogaming
Notice how crisp and sharp the textures look now? ...can you spot the blasphemous texture swap?🤣
#n64 #retrogaming
November 14, 2025 at 12:14 AM
jnmartin has been putting the finishing touches on his #StarFox 64 port to the Sega #Dreamcast! To hype up its upcoming release, here's a direct hardware capture of the intro scene!
Notice how crisp and sharp the textures look now? ...can you spot the blasphemous texture swap?🤣
#n64 #retrogaming
Notice how crisp and sharp the textures look now? ...can you spot the blasphemous texture swap?🤣
#n64 #retrogaming
Mixing SH4 ASM, C23, and C++23 together within the same hardware accelerated linear algebra library for the Sega Dreamcast (which also runs unit tests on real HW) with the hopes of democratizing the upper performance echelons of what the SH4 FPU is capable of...
#gamedev #retrocomputing #cplusplus
#gamedev #retrocomputing #cplusplus
November 13, 2025 at 2:01 PM
Mixing SH4 ASM, C23, and C++23 together within the same hardware accelerated linear algebra library for the Sega Dreamcast (which also runs unit tests on real HW) with the hopes of democratizing the upper performance echelons of what the SH4 FPU is capable of...
#gamedev #retrocomputing #cplusplus
#gamedev #retrocomputing #cplusplus
It's time for the second annual DreamDisc #gamejam for the Sega Dreamcast! We have prebuilt frameworks and libs such as #raylib and #sdl for developers of any experience level. Top 10 entries get published to a physical DC disc release!
orcface.com/events/02-dr...
#gamedev #indiegame #retrogaming
orcface.com/events/02-dr...
#gamedev #indiegame #retrogaming
November 11, 2025 at 7:54 PM
It's time for the second annual DreamDisc #gamejam for the Sega Dreamcast! We have prebuilt frameworks and libs such as #raylib and #sdl for developers of any experience level. Top 10 entries get published to a physical DC disc release!
orcface.com/events/02-dr...
#gamedev #indiegame #retrogaming
orcface.com/events/02-dr...
#gamedev #indiegame #retrogaming
Interesting pixel art for an upcoming Dreamcast game... seems oddly familiar...
I've been on the down low for a bit, but decided to start game dev again for the Sega Dreamcast. I'm currently working on a demo for the RPG Elysian Shadows, starting with pixel artwork. We'll see how it goes.
#pixelart #dreamcast #gamedev
#pixelart #dreamcast #gamedev
November 5, 2025 at 2:37 AM
Interesting pixel art for an upcoming Dreamcast game... seems oddly familiar...
Reposted by Falco Girgis
black screen is done, coming to Dreamcast + Steam in a month, and I'd really love it if you wishlisted it 🖤✨
store.steampowered.com/app/4063290
#dreamcast #homebrew #gamedev #spacegame #furry
store.steampowered.com/app/4063290
#dreamcast #homebrew #gamedev #spacegame #furry
October 28, 2025 at 12:58 AM
black screen is done, coming to Dreamcast + Steam in a month, and I'd really love it if you wishlisted it 🖤✨
store.steampowered.com/app/4063290
#dreamcast #homebrew #gamedev #spacegame #furry
store.steampowered.com/app/4063290
#dreamcast #homebrew #gamedev #spacegame #furry
Here's an actual hardware capture of me cruising through Corneria in jnmartin's port of #StarFox64... ON MY SEGA #DREAMCAST!
We have another AAA-quality Nintendo 64-to-Sega Dreamcast jnmartin port on our hands here! Stay tuned for the upcoming release!
#gamedev #retrogaming #indiegame
We have another AAA-quality Nintendo 64-to-Sega Dreamcast jnmartin port on our hands here! Stay tuned for the upcoming release!
#gamedev #retrogaming #indiegame
October 27, 2025 at 1:56 AM
Here's an actual hardware capture of me cruising through Corneria in jnmartin's port of #StarFox64... ON MY SEGA #DREAMCAST!
We have another AAA-quality Nintendo 64-to-Sega Dreamcast jnmartin port on our hands here! Stay tuned for the upcoming release!
#gamedev #retrogaming #indiegame
We have another AAA-quality Nintendo 64-to-Sega Dreamcast jnmartin port on our hands here! Stay tuned for the upcoming release!
#gamedev #retrogaming #indiegame
In what just may be his most sacrilegious move yet... Esppiral brings us a scene from GOD OF WAR as rendered by the SEGA #DREAMCAST! 🥹
#retrogaming #gamedev #godofwar #graphics
#retrogaming #gamedev #godofwar #graphics
October 26, 2025 at 5:58 AM
In what just may be his most sacrilegious move yet... Esppiral brings us a scene from GOD OF WAR as rendered by the SEGA #DREAMCAST! 🥹
#retrogaming #gamedev #godofwar #graphics
#retrogaming #gamedev #godofwar #graphics
For everyone who is not yet privy to the fact that the Sega #Dreamcast is alive and well, thanks to a thriving homebrew community and continued GCC support, here is my talk from this year's #FOSDEM, featuring several high-profile DC ports!
archive.fosdem.org/2025/schedul...
#gamedev #retrogaming
archive.fosdem.org/2025/schedul...
#gamedev #retrogaming
October 24, 2025 at 12:04 AM
For everyone who is not yet privy to the fact that the Sega #Dreamcast is alive and well, thanks to a thriving homebrew community and continued GCC support, here is my talk from this year's #FOSDEM, featuring several high-profile DC ports!
archive.fosdem.org/2025/schedul...
#gamedev #retrogaming
archive.fosdem.org/2025/schedul...
#gamedev #retrogaming
All of my new followers who are confused hearing we have C23, C++23, and the bleeding-edge on the Sega #Dreamcast, here’s the FOSDEM 2024 talk in the GCC devroom about our quest to bring modern things to 1999 game console:
archive.fosdem.org/2024/schedul...
#gamedev #retrocomputing #cplusplus
archive.fosdem.org/2024/schedul...
#gamedev #retrocomputing #cplusplus
October 22, 2025 at 4:14 PM
All of my new followers who are confused hearing we have C23, C++23, and the bleeding-edge on the Sega #Dreamcast, here’s the FOSDEM 2024 talk in the GCC devroom about our quest to bring modern things to 1999 game console:
archive.fosdem.org/2024/schedul...
#gamedev #retrocomputing #cplusplus
archive.fosdem.org/2024/schedul...
#gamedev #retrocomputing #cplusplus
Reproducing an old Sega trick with my fast math library for the #Dreamcast, which swizzles XYZW coordinates into WXYZ ordering to prevent a pipeline stall waiting for the W coordinate to get transformed, which we need first for perspective division.
#retrocomputing #graphics #gamedev #optimization
#retrocomputing #graphics #gamedev #optimization
October 21, 2025 at 1:41 PM
Reproducing an old Sega trick with my fast math library for the #Dreamcast, which swizzles XYZW coordinates into WXYZ ordering to prevent a pipeline stall waiting for the W coordinate to get transformed, which we need first for perspective division.
#retrocomputing #graphics #gamedev #optimization
#retrocomputing #graphics #gamedev #optimization
Time to right some more wrongs in the timeline of gaming history...
Today we have an actual hardware capture of Esppiral doing his thing and rendering a scene from #FinalFantasy X... ON A REAL SEGA #DREAMCAST!
#retrogaming #gamedev #retrocomputing
Today we have an actual hardware capture of Esppiral doing his thing and rendering a scene from #FinalFantasy X... ON A REAL SEGA #DREAMCAST!
#retrogaming #gamedev #retrocomputing
October 16, 2025 at 3:42 AM
Time to right some more wrongs in the timeline of gaming history...
Today we have an actual hardware capture of Esppiral doing his thing and rendering a scene from #FinalFantasy X... ON A REAL SEGA #DREAMCAST!
#retrogaming #gamedev #retrocomputing
Today we have an actual hardware capture of Esppiral doing his thing and rendering a scene from #FinalFantasy X... ON A REAL SEGA #DREAMCAST!
#retrogaming #gamedev #retrocomputing
Just managed to shave 9 clock cycles off when initializing a 4x4 matrix to identity on the SH4 CPU found on the Sega #Dreamcast, compared to the implementation found within the KallistiOS indie SDK!
GAINZ!!!
#gamedev #retrocomputing #coding #programmerlife
GAINZ!!!
#gamedev #retrocomputing #coding #programmerlife
October 15, 2025 at 5:12 PM
Just managed to shave 9 clock cycles off when initializing a 4x4 matrix to identity on the SH4 CPU found on the Sega #Dreamcast, compared to the implementation found within the KallistiOS indie SDK!
GAINZ!!!
#gamedev #retrocomputing #coding #programmerlife
GAINZ!!!
#gamedev #retrocomputing #coding #programmerlife
Dat awkward moment when you need to write some SH4 assembly code to optimize some matrix routines for the Sega #Dreamcast, but all you have with you is a notebook…
#retrocomputing #gamedev #coding #developerlife
#retrocomputing #gamedev #coding #developerlife
October 13, 2025 at 7:01 AM
Dat awkward moment when you need to write some SH4 assembly code to optimize some matrix routines for the Sega #Dreamcast, but all you have with you is a notebook…
#retrocomputing #gamedev #coding #developerlife
#retrocomputing #gamedev #coding #developerlife
Reposted by Falco Girgis
October 10, 2025 at 8:32 AM
Writing hand-optimized implementations of the C standard library's routines for the Sega #Dreamcast's SH4, because the implementations we get from Newlib are using slow bit arithmetic on a platform with a baller FPU... ain't nobody got time!
#gamedev #retrocomputing #cplusplus
#gamedev #retrocomputing #cplusplus
October 11, 2025 at 7:21 AM
Writing hand-optimized implementations of the C standard library's routines for the Sega #Dreamcast's SH4, because the implementations we get from Newlib are using slow bit arithmetic on a platform with a baller FPU... ain't nobody got time!
#gamedev #retrocomputing #cplusplus
#gamedev #retrocomputing #cplusplus
Reposted by Falco Girgis
I'm developing a Super Mario 64 clone on the Dreamcast using KallistiOS and raylib (gldc). I plan on making it for the #DreamDisc 2025 competition, just a pre alpha.
So far, basic controls and camera movement has been figured out. What do ya think? :)
#Dreamcast #SEGA #Mario64 #homebrew
So far, basic controls and camera movement has been figured out. What do ya think? :)
#Dreamcast #SEGA #Mario64 #homebrew
October 9, 2025 at 10:04 PM
I'm developing a Super Mario 64 clone on the Dreamcast using KallistiOS and raylib (gldc). I plan on making it for the #DreamDisc 2025 competition, just a pre alpha.
So far, basic controls and camera movement has been figured out. What do ya think? :)
#Dreamcast #SEGA #Mario64 #homebrew
So far, basic controls and camera movement has been figured out. What do ya think? :)
#Dreamcast #SEGA #Mario64 #homebrew
Reposted by Falco Girgis
Check out episode 1 of #Retro168 on our brand new YouTube Channel. A great round up of things that happened over the last 7 days
❤️ and RT appreciated 👍
Right here: youtu.be/tzmY_ZwySsc?...
❤️ and RT appreciated 👍
Right here: youtu.be/tzmY_ZwySsc?...
October 9, 2025 at 8:32 PM
Check out episode 1 of #Retro168 on our brand new YouTube Channel. A great round up of things that happened over the last 7 days
❤️ and RT appreciated 👍
Right here: youtu.be/tzmY_ZwySsc?...
❤️ and RT appreciated 👍
Right here: youtu.be/tzmY_ZwySsc?...
In case you haven’t already grabbed it, issue 277 of “Retro Gamer” has a full two-page interview featuring all of the epic ports that our #homebrew scene has brought to the Sega #Dreamcast lately, plus some exclusive screenshots of some hotly anticipated titles! 🔥
#gamedev #retrogaming #indiegame
#gamedev #retrogaming #indiegame
October 2, 2025 at 9:47 PM
In case you haven’t already grabbed it, issue 277 of “Retro Gamer” has a full two-page interview featuring all of the epic ports that our #homebrew scene has brought to the Sega #Dreamcast lately, plus some exclusive screenshots of some hotly anticipated titles! 🔥
#gamedev #retrogaming #indiegame
#gamedev #retrogaming #indiegame
Oh, this is just Esppiral loading and rendering a scene from the #PS2 title, "Dragon Quest 8," on a Sega #Dreamcast, no big deal...
...WAIT, WUT?! 🤯
#retrogaming #retrcomputing #gamdedev
...WAIT, WUT?! 🤯
#retrogaming #retrcomputing #gamdedev
September 19, 2025 at 12:54 AM
Oh, this is just Esppiral loading and rendering a scene from the #PS2 title, "Dragon Quest 8," on a Sega #Dreamcast, no big deal...
...WAIT, WUT?! 🤯
#retrogaming #retrcomputing #gamdedev
...WAIT, WUT?! 🤯
#retrogaming #retrcomputing #gamdedev
"Mute Crimson" from @icedlizardgames.bsky.social, captured from my Sega #Dreamcast!
This is an action-packed, precision platformer running at a solid 60FPS, with extremely responsive controls and tight gameplay mechanics. Super polished and fun to play!
#gamedev #retrogaming #retrocomputing
This is an action-packed, precision platformer running at a solid 60FPS, with extremely responsive controls and tight gameplay mechanics. Super polished and fun to play!
#gamedev #retrogaming #retrocomputing
September 15, 2025 at 11:50 PM
"Mute Crimson" from @icedlizardgames.bsky.social, captured from my Sega #Dreamcast!
This is an action-packed, precision platformer running at a solid 60FPS, with extremely responsive controls and tight gameplay mechanics. Super polished and fun to play!
#gamedev #retrogaming #retrocomputing
This is an action-packed, precision platformer running at a solid 60FPS, with extremely responsive controls and tight gameplay mechanics. Super polished and fun to play!
#gamedev #retrogaming #retrocomputing
Can we get a HELL YEAH for developer, Mephiles, who was just able to host a #Minecraft server on his Sega #Dreamcast (right) and connect to it successfully using a PC client (left)!?
#retrogaming #gamedev #retrocomputing
#retrogaming #gamedev #retrocomputing
September 13, 2025 at 7:36 PM
Can we get a HELL YEAH for developer, Mephiles, who was just able to host a #Minecraft server on his Sega #Dreamcast (right) and connect to it successfully using a PC client (left)!?
#retrogaming #gamedev #retrocomputing
#retrogaming #gamedev #retrocomputing
Reposted by Falco Girgis
