The Sharp X68000 was designed around wired digital controllers, while current gamepads increasingly rely on Bluetooth, USB-C, and configurable input profiles.…
Stories
Integrating a modern Bluetooth gamepad with the X68000
Building a Simple Floppy Disk Duplicator for the X68000
The Sharp X68000 relies heavily on 5.25-inch floppy disks, and many of its most useful games, utilities, and system tools were distributed on that medium.…
Repairing a Dead X68000 CRT Monitor With Flyback Trouble
A dead Sharp X68000 CRT monitor can appear to have a single dramatic fault: the power light stays dark, the screen remains black, or the set clicks briefly and…
Emulating the X68000 on a Raspberry Pi with an FPGA Core
The Sharp X68000 remains an unusually rewarding platform for modern retrocomputing. Its Motorola 68000 processor, custom graphics hardware, Yamaha sound…
Designing a 3D-printed case for an X68000 expansion board
A custom enclosure can turn an exposed X68000 expansion board into a safer, easier-to-handle peripheral. For projects such as the Nereid-X, a printed case…
Upgrading the X68000 System RAM from 1MB to 4MB
The Sharp X68000 remains remarkably capable for a computer introduced in the late 1980s, but its original memory configuration can become a practical…
Smooth 2D Animation With the X68000 Sprite Engine
The Sharp X68000 is well suited to fast 2D graphics because its custom video hardware can move small image objects without asking the Motorola 68000 CPU to…
Debugging X68000 hardware with an oscilloscope
The Sharp X68000 is an excellent platform for learning practical electronics because its hardware is complex enough to expose real faults while remaining…
Constructing a replica X68000 floppy disk drive
A working floppy drive is one of the most useful additions to a restored Sharp X68000. It allows original disks, replacement media, and disk images to coexist…
Adding an S-Video output to the X68000
The Sharp X68000 was designed around RGB video, a format that suited its dedicated monitors and delivered a remarkably sharp picture for an early home…
Nereid-X Expansion Board
A personally-produced LAN+USB+Memory expansion board for Sharp X68000 series computers. Multiple production runs were offered, including a final batch and a later revival reproduction run.
Power Supply Repair
X68 power supply repair and modification services were offered by the site owner, with documentation shared through diary entries spanning 2001–2006.
Server & Networking
Notes on FreeBSD administration, ISP changes, server migration, and networking topics. The site itself ran on FreeBSD with the hns diary system and Namazu search integration.
Get in touch
X68K.NET connects Sharp X68000 enthusiasts through community links and shared projects. Reach out with questions about the Nereid project or X68 resources.