HOME About NCOT Documentation Social Media Mastodon Support Me

Drink tea and make things

Blog Electronics Labs ZX Spectrum Next Computer Science Z80 Homebrew Computer Arduino and Microcontrollers
Clever engineering on a budget - ZX Spectrum Interrupts

Clever engineering on a budget - ZX Spectrum Interrupts

Posted:

How do you make an underpowered 8 bit CPU seem a bit more capable than it really is? Interrupts! that mechanism where the CPU can be poked and told to do something completely different, then resume whatever it was originally doing as if it’d never stopped.

Read More…
Memory Banking, DMA and Interrupts - How 8bit computers work

Memory Banking, DMA and Interrupts - How 8bit computers work

Posted:

Computers from the 1980s seemed to be quite limited in their abilities, there was a big drive to make a machine as cheaply as possible. Competition was fierce between manufacturers.

Read More…