Email or username:

Password:

Forgot your password?
Ken's posts Post Back to profile
Top-level
Ken Shirriff

This system is a bit complicated, but gives the 8086 a lot of flexibility for specifying which registers to use.

For more information, see my blog post righto.com/2023/03/8086-regist
11 Mar 2023 at 17:59 | Open on oldbytes.space
3 comments
Santiago

@kenshirriff awesome! so what does this processor has to do with the 80186, 80286 and so on? it is the name architecture/instruction sets but more transistors instead? or completely different?

11 Mar 2023 at 21:32 | Open on mastodon.uy
Ken Shirriff

@santiago The 80186, 80286, Pentium, etc. are improvements to the 8086, adding more instructions and features and lots more transistors but keeping binary compatibility. Modern x86 chips can still run 8086 code (but only in virtual real mode).

11 Mar 2023 at 22:50 | Open on oldbytes.space
Santiago

@kenshirriff I remember as a kid, playing DOS gamen with a DEC PC, cannot remember the model, late 80s. Sure ut was a 186 or 286 at most. Miss those good old days. Last week i got a Texas Instruments Voyage 200 with a Motorola 68k processor at 12MHz... I think that those fan less and even cooler-less processors, were the top, everything with a fan+cooler after, was all the way down. Thanks for sharing!

12 Mar 2023 at 1:59 | Open on mastodon.uy
Go Up