] But wait a minute... You said 8086? I believe the Z80
] is also called 8080, right? Does these processors have
] any relation between them?
Yes.
The 8080 was developed by Intel corporation.
After developing the 8080, the boss of Intel had some ideas about how to
develop the successor. One of the main architects working for Intel had a
completely different idea about how to develop the successor. The main
architect could simply not agree with the boss, so he resigned and founded
his own company: Zilog.
Intel developed the successor of the 8080 using their ideas, it was called
the 8086, which was a full 16-bit processor. This processor was chosen by IBM
for their low-end business computer which eventually became the PC as we all
know it. Please note that Intel also developed a trimmed-down version of the
8086: the 8088. This processor has the same instruction set as the 8086, but
it has a multiplexed 8-bit databus in stead of a full 16-bit databus.
Zilog developed the successor of the 8080 using their ideas. This successor
was called Z80 and is still being used today. Mainly as cheap embedded
processor for simple devices. And ofcourse in our beloved MSX system.
Kind regards,
Alex Wulms
--
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