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A table showing the number of transistor sites, transistors, and vacancies for various ROMs and PLAs. The largest is microcode, with 13904 transistor sites of which 6210 have transistors. That yields 7694 transistor vacancies.

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A table showing the number of transistor sites, transistors, and vacancies for various ROMs and PLAs. The largest is microcode, with 13904 transistor sites of which 6210 have transistors. That yields 7694 transistor vacancies.
https://assets.oldbytes.space/assets.oldbytes.space/media_attachments/files/109/689/056/848/337/877/original/ded843083b0705d5.png

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Ken Shirriff (kenshirriff@oldbytes.space)'s status on Sunday, 15-Jan-2023 04:14:44 JST Ken Shirriff
in reply to

Looking at all the ROMs and PLAs on the 8086 die finds 9659 vacant transistor sites. This boosts the transistor count from 19,618 "real" transistors to 29,277 "potential" transistors. So the published 29,000 number is right if you count "missing" transistors too.

In conversation Sunday, 15-Jan-2023 04:14:44 JST from oldbytes.space permalink