gloriouscowgloriouscow@oldbytes.space
Nov 10, 2026, 9:36 PMDifferences in registers, flags, or cycle execution can be highlighted.
Replies
- gloriouscowgloriouscow@oldbytes.spaceNov 10, 2026, 10:01 PM
it still blows my mind that a i soldered a 138-pin 386EX to a PCB I slapped together in KiCad without any sort of engineering degree and it actually functions
- gloriouscowgloriouscow@oldbytes.spaceNov 10, 2026, 10:03 PM
actually I wonder if @MuseumJoe would be interested in carrying #ArduinoX86 boards.
The 8088/8086 board is completely passive and the software GUI is becoming quite mature. It has huge potential for use by educational institutions
- gloriouscowgloriouscow@oldbytes.spaceNov 10, 2026, 10:14 PM
The best thing about ditching the serial UART though - I get two 5v tolerant GPIO pins back.
This lets me hook up the PEREQ and /PEACK pins that implement the CPU<->FPU handshake. Capturing those pins in future FPU instruction tests isn't strictly necessary for emulation, but they will make the tests that much useful as an oracle of hardware behavior
Joe's Computer MuseumMuseumJoe@oldbytes.spaceNov 10, 2026, 11:25 PM@gloriouscow Yes?
- Joe's Computer MuseumMuseumJoe@oldbytes.spaceNov 10, 2026, 11:27 PM
@gloriouscow I mean, certainly. I can make them available for less than folks can get them in small batches on their own.
Not sure what the demand is, but I'm always amenable to a conversation.
Henning Paul DC4HPhennichodernich@radiosocial.deNov 11, 2026, 7:17 AM@gloriouscow I know enough people with an engineering degree who completely unable to design a PCB.
You can get very far without an engineering degree by just following best practices. The engineering degree however might help you understand where they come from.