Ian Hanschen
@furan.bsky.social
Principal OS Engineer. One of the four engineers who built DWM. Shipped graphics code across Windows, Xbox, and beyond. Served time at Microsoft and Intel. Here for retro hardware. Projects at https://www.hackaday.io/furan
Pinned
The core I’ve been working on for the Graphics Gremlin HDMI now supports the following:
- Full VGA feature set (includes CGA and EGA)
- VESA support for 8-bpp bank-switched modes: 320x200, 320x240, 320x400, 400x300, 640x400, 640x480, 800x600
- MDA as a configurable secondary adapter on 4-bpp HDMI
- Full VGA feature set (includes CGA and EGA)
- VESA support for 8-bpp bank-switched modes: 320x200, 320x240, 320x400, 400x300, 640x400, 640x480, 800x600
- MDA as a configurable secondary adapter on 4-bpp HDMI
Switching contexts - the assembled ISA-to-HSMC bridge boards arrived from JLCPCB. This will allow an Altera FPGA kit's HSMC port to talk to the bus using an over-spec'd cable for rapid prototyping. Previously I did this for PCI, hopefully this will offer the same flexibility.
September 17, 2026 at 11:34 PM
Switching contexts - the assembled ISA-to-HSMC bridge boards arrived from JLCPCB. This will allow an Altera FPGA kit's HSMC port to talk to the bus using an over-spec'd cable for rapid prototyping. Previously I did this for PCI, hopefully this will offer the same flexibility.
It's alive. sans a few parts past-me borrowed from future me that are now on order, the FPGA flashes and configures.
September 17, 2026 at 6:40 PM
It's alive. sans a few parts past-me borrowed from future me that are now on order, the FPGA flashes and configures.
Reposted by Ian Hanschen
Toad knocked at the door. “Hello,” said Frog. “Look at my list of things to do,” said Toad. “Oh,” said Frog, “that is very nice.”
September 16, 2026 at 10:37 PM
Toad knocked at the door. “Hello,” said Frog. “Look at my list of things to do,” said Toad. “Oh,” said Frog, “that is very nice.”
Hey that’s not what the G is!
September 16, 2026 at 9:31 PM
Hey that’s not what the G is!
When I ordered the boards, the parts were on backorder. They arrived several months later. Then I got the HDMI version pre-built. I was able to find the parts in my component bins. Tip: use the invoice numbers when doing this, would have taken forever otherwise.
September 16, 2026 at 7:05 PM
When I ordered the boards, the parts were on backorder. They arrived several months later. Then I got the HDMI version pre-built. I was able to find the parts in my component bins. Tip: use the invoice numbers when doing this, would have taken forever otherwise.
Reposted by Ian Hanschen
Metroid has been on my list for a while, so the new reveal made the perfect opportunity - the Metroid Ravenous Font & Logo Generator is live now!
Metroid Ravenous Logo and Font Generator
Celebrate the recent reveal of Metroid Ravenous with the new custom font & logo generator - featuring authentic styling and custom fonts inspired by the original logo.
pixelframe.design
September 15, 2026 at 6:16 PM
Metroid has been on my list for a while, so the new reveal made the perfect opportunity - the Metroid Ravenous Font & Logo Generator is live now!
On a scallop kick lately. If you add onion granules to the flour dredge, it does something incredible to the flavor.
September 15, 2026 at 7:08 PM
On a scallop kick lately. If you add onion granules to the flour dredge, it does something incredible to the flavor.
man I'm so glad that moraffware games work
September 14, 2026 at 10:38 PM
man I'm so glad that moraffware games work
Sometimes Toad is a lot.
TOAD WILL NOW DANCE, AND HE WILL BE WONDERFUL.
September 14, 2026 at 7:42 PM
Sometimes Toad is a lot.
Qualitas Software (makers of 386MAX) had their own incredible debugger for all things (real mode, protected mode, v86, DPMI/VCPI, Win31/9x kernel) called 386SWAT.
www.sudleyplace.com/swat/
www.sudleyplace.com/swat/
September 14, 2026 at 5:00 PM
Qualitas Software (makers of 386MAX) had their own incredible debugger for all things (real mode, protected mode, v86, DPMI/VCPI, Win31/9x kernel) called 386SWAT.
www.sudleyplace.com/swat/
www.sudleyplace.com/swat/
Wishing I had the original Graphics Gremlin (vs the HDMI) to test with and remembered...
September 14, 2026 at 4:50 PM
Wishing I had the original Graphics Gremlin (vs the HDMI) to test with and remembered...
Reposted by Ian Hanschen
Thanks Ian! This work great on my IBM PS/S Model 30. #retrocomputing
PicoGraph is already available. You can run it with a supported DisplayLink device (don't get one based on DL-3xxx chipset), grab an older $20 one off amazon) and a PicoMEM2. github.com/ianhan/picog... @moorejh.bsky.social is the first user so far on an IBM PS/2 Model 30.
GitHub - ianhan/picograph: PicoGraph is a Pi Pico 2 ISA video card that supports several PC graphics standards using DisplayLink
PicoGraph is a Pi Pico 2 ISA video card that supports several PC graphics standards using DisplayLink - ianhan/picograph
github.com
September 14, 2026 at 12:44 PM
Thanks Ian! This work great on my IBM PS/S Model 30. #retrocomputing
Debugging Graphics Gremlin SVGA+ Windows driver interaction with… itself.
September 14, 2026 at 3:07 AM
Debugging Graphics Gremlin SVGA+ Windows driver interaction with… itself.
mushrooms and scallops
considering subsisting on sauteed mushrooms
September 13, 2026 at 5:22 PM
mushrooms and scallops
Actually it’s good that I’m not at VCFMW because of the things I would buy.
September 13, 2026 at 4:12 PM
Actually it’s good that I’m not at VCFMW because of the things I would buy.
Reposted by Ian Hanschen
In 1980, Intel introduced the 8087 floating-point coprocessor chip. Plugging this chip into your IBM PC made math 100 times faster, good for CAD and spreadsheets. I opened up the chip to reverse-engineer exactly how it does complicated calculations. Let's take a look inside...
September 12, 2026 at 4:24 PM
In 1980, Intel introduced the 8087 floating-point coprocessor chip. Plugging this chip into your IBM PC made math 100 times faster, good for CAD and spreadsheets. I opened up the chip to reverse-engineer exactly how it does complicated calculations. Let's take a look inside...
considering subsisting on sauteed mushrooms
September 12, 2026 at 2:58 PM
considering subsisting on sauteed mushrooms
For comparison, here’s the FPGA version, using the GPU from MiSTer’s PSX with some glue logic for the bus.
I’m getting a kick out of both displays being FPGA-driven.
I’m getting a kick out of both displays being FPGA-driven.
September 11, 2026 at 11:21 PM
For comparison, here’s the FPGA version, using the GPU from MiSTer’s PSX with some glue logic for the bus.
I’m getting a kick out of both displays being FPGA-driven.
I’m getting a kick out of both displays being FPGA-driven.
In case you were wondering, this is the performance of the DTL-H201A on the RP2350B. The unoptimized Beetle PSX GPU is fast enough for the tools meant for the artist board, but not a 3D accelerator.
September 11, 2026 at 4:22 PM
In case you were wondering, this is the performance of the DTL-H201A on the RP2350B. The unoptimized Beetle PSX GPU is fast enough for the tools meant for the artist board, but not a 3D accelerator.
this is humor slop, a different kind of AI slop
September 11, 2026 at 3:20 PM
this is humor slop, a different kind of AI slop
Reposted by Ian Hanschen
It’s time for me to make my yearly 9/11 repost about jokes and memory
September 11, 2026 at 1:17 PM
It’s time for me to make my yearly 9/11 repost about jokes and memory
Reposted by Ian Hanschen
“You must have been tired,” said Toad.
“I was tired,” said Frog, “and it started to rain.”
“I was tired,” said Frog, “and it started to rain.”
September 11, 2026 at 1:37 PM
“You must have been tired,” said Toad.
“I was tired,” said Frog, “and it started to rain.”
“I was tired,” said Frog, “and it started to rain.”
Reposted by Ian Hanschen
Signing off tonight with the local landmark we’ve been calling ‘The Murderous Amélie’ shed.
September 11, 2026 at 12:54 AM
Signing off tonight with the local landmark we’ve been calling ‘The Murderous Amélie’ shed.
A release of PicoGraph for the PicoMEM2 is now available with support for emulating MDA, Hercules Graphics, EGA, VGA, and the Cirrus Logic CL-GD5429, along with the Sony DTL-H201A Graphics Artist PSX development board.
github.com/ianhan/picog...
github.com/ianhan/picog...
September 10, 2026 at 9:49 PM
A release of PicoGraph for the PicoMEM2 is now available with support for emulating MDA, Hercules Graphics, EGA, VGA, and the Cirrus Logic CL-GD5429, along with the Sony DTL-H201A Graphics Artist PSX development board.
github.com/ianhan/picog...
github.com/ianhan/picog...
Reposted by Ian Hanschen
A toad tries out new material at open mic night.
September 10, 2026 at 8:36 PM
A toad tries out new material at open mic night.