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Ken Shirriff's blog

Computer history, restoring vintage computers, IC reverse engineering, and whatever.

  • By Ken Shirriff
  • Based in United States of America
  • Roughly two posts per month

Posts per month

Data for this chart is available in the table below
Posts per month
Month starting Posts
Jan 2023 8
Feb 2023 5
Mar 2023 4
Apr 2023 2
May 2023 1
Jun 2023 0
Jul 2023 3
Aug 2023 2
Sep 2023 1
Oct 2023 3
Nov 2023 2
Dec 2023 1

Any gaps could be due to errors when fetching the blog’s feed.

Most recent posts

Reverse engineering the barrel shifter circuit on the Intel 386 processor die
The Intel 386 processor (1985) was a large step from the 286 processor, moving x86 to a 32-bit architecture. The 386 also dramatically improved the performance of shift and rotate operations by adding a "barrel …
On , by Ken Shirriff, 4,632 words
Inside the Intel 386 processor die: the clock circuit
Processors are driven by a clock, which controls the timing of each step inside the chip. In this blog post, I'll examine the clock-generation circuitry inside the Intel 386 processor. Earlier processors such as the …
On , by Ken Shirriff, 4,597 words
Reverse engineering the Intel 386 processor's register cell
The groundbreaking Intel 386 processor (1985) was the first 32-bit processor in the x86 line. It has numerous internal registers: general-purpose registers, index registers, segment selectors, and more specialized registers. In this blog post, I …
On , by Ken Shirriff, 2,640 words