The Demon Development Cartridge was an addon from John Morrison.
From his publicity :
The ultimate machine code tool.
Suitable for 464/664 and 6128 machines.
Demon will give you a full control of your Amstrad.
Stop any program, any time by a press of a buttom.
The memory remains intact and can be :
- Saved to Tape/Disc. - Debugged. - Traced. - Moved. - Disassembled. - Etc.
Now, thanks to Jose Leandro, the hardware specialist of the spectrum, with his famous page :
http://trastero.speccy.org/cosas/JL/JL.htm
We can know more about this hardware.
Pictures
- Demon Development Cartridge Layout, thanks to Jose Leandro
Demon Development Cartridge - Front Box
Demon Development Cartridge - Side Box
Demon Development Cartridge - Open Box
Demon Development Cartridge - Components
Demon Development Cartridge - Tracks
Demon Development Cartridge - PCB Front
Demon Development Cartridge - PCB Back
Demon Development Cartridge - Layout
Publicity
- Demon Development Cartridge Publicity
Demon Development Cartridge - Publicity
Download
- Demon (ROM).zip (ROM for Emulators)
- Demon (Eagle).zip (Demon Development Cartridge files for Eagle)