X-Nico

2 unusual facts about MOS Technology


Interrupts in 65xx processors

In the above code fragment, the symbol % is MOS Technology and WDC standard assembly language syntax for a bitwise operand.

Non-maskable interrupt

Commodore also connected the MOS Technology 6526 CIA #2 in the C64 and C128 to the processor's NMI line, which was part of the means by which software emulation of the 6551 ACIA was accomplished.


VisiCorp

It was founded in 1976 by Dan Fylstra and Peter R. Jennings as Personal Software, and first published Jennings' Microchess program for the MOS Technology KIM-1 computer, and later Commodore PET and Apple II versions.


see also

Hudson Soft HuC6280

The HuC6280 8-bit microprocessor is Japanese company Hudson Soft's improved version of the WDC 65C02 CPU, an upgraded CMOS version of the popular NMOS-based MOS Technology 6502 8-bit CPU.

HVSC

The High Voltage SID Collection, both the name of a project to build a collection of music created on the MOS Technology 6581/8580 SID sound chip in Commodore CBM-II, Commodore 64 and Commodore 128 home computers and the collection itself