PiStorm on the Macintosh SE
- Thread starter AlexCL
- Start date
Likewise! 
@AlexCL, this is a fascinating project. I wonder if it can relate to making color video output via SCSI to a monitor via HDMI with faster refresh timings so the SE/30 can display up to millions of colors.
There were discussions about that starting at this post under the PowerView thread.
@AlexCL, this is a fascinating project. I wonder if it can relate to making color video output via SCSI to a monitor via HDMI with faster refresh timings so the SE/30 can display up to millions of colors.
There were discussions about that starting at this post under the PowerView thread.
I just want to pretend my SE is a SE/30!Likewise!
@AlexCL, this is a fascinating project. I wonder if it can relate to making color video output via SCSI to a monitor via HDMI with faster refresh timings so the SE/30 can display up to millions of colors.
There were discussions about that starting at this post under the PowerView thread.
Not too much to update for functionality...
Someone got a Macintosh Classic to boot with the PiStorm but still with limited functionality of Floppy only..
Most of the updates are on the PiStorm Discord Server under the #macintosh channel.
discord.gg
Someone got a Macintosh Classic to boot with the PiStorm but still with limited functionality of Floppy only..
Most of the updates are on the PiStorm Discord Server under the #macintosh channel.
Join the PiStorm Discord Server!
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Minor Update on the PiStorm on a Mac SE...
I used an AI agent to patch the standard PiStorm Emulator to force 24-bit addressing on the 68020, 68EC30 and 68030 emulated CPUs.
Those CPUs couldn't boot on a Mac SE due to being 32-Bit addressing CPUs.
The patched emulator is here:
github.com
I ran speed tests on all the working CPU types on Speedometer 3.23. The 68020 appears to be the fastest. The Mac Classic is equivalent to 1.0 for speed factor.
I used an AI agent to patch the standard PiStorm Emulator to force 24-bit addressing on the 68020, 68EC30 and 68030 emulated CPUs.
Those CPUs couldn't boot on a Mac SE due to being 32-Bit addressing CPUs.
The patched emulator is here:
Release v1.0 - static armhf build · Frimples/macse-24bit-addressing
24-bit addressing patch for the PiStorm Macintosh SE emulator (Musashi fork). ✅ VERIFIED WORKING ON HARDWARE Reported from a real Macintosh SE + PiStorm (Sept 2026): CPU mode Result 68000 wo...
github.com
I ran speed tests on all the working CPU types on Speedometer 3.23. The 68020 appears to be the fastest. The Mac Classic is equivalent to 1.0 for speed factor.
Huge Milestone for PiStorm on the Macintosh SE tonight!
I was working with an AI agent to try to get a virtual disk system working so I could install software larger than the 800k floppies I've been working with. After two days of back and forth I got a janky but working SCSI emulator that runs off of an image from the SD card. I had to format the SCSI drive on the make with LIDO and then copy over the System Folder. It actually booted! Then I opened the disk file with Basilisk II and installed System 7.5.5 and it works.
Ran lemmings and MacFilm for tests too.
I was working with an AI agent to try to get a virtual disk system working so I could install software larger than the 800k floppies I've been working with. After two days of back and forth I got a janky but working SCSI emulator that runs off of an image from the SD card. I had to format the SCSI drive on the make with LIDO and then copy over the System Folder. It actually booted! Then I opened the disk file with Basilisk II and installed System 7.5.5 and it works.
Ran lemmings and MacFilm for tests too.
GitHub - Frimples/pistorm-macse-scsi-addon: Pure, opt-in Macintosh SE virtual NCR 5380 SCSI add-on for PiStorm
Pure, opt-in Macintosh SE virtual NCR 5380 SCSI add-on for PiStorm - Frimples/pistorm-macse-scsi-addon
github.com