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Reverse engineering the 386 processor's prefetch queue circuitry

Ken Shirriff Blog · published 10 May 2025

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https://static.righto.com/images/386-prefetch/386-die-labeled.jpg
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https://static.righto.com/images/386-prefetch/prefetcher-labeled.jpg
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https://static.righto.com/images/386-prefetch/equality-logic.jpg
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https://static.righto.com/images/386-prefetch/equality-out.jpg
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https://static.righto.com/images/386-prefetch/chain.jpg
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https://static.righto.com/images/386-prefetch/chain-circuit.jpg
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https://static.righto.com/images/386-prefetch/alignment-network.jpg
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Examining the silicon dies of the Intel 386 processor Read at the source ↗
righto.com
https://www.rcollins.org/secrets/PrefetchQueue.html
rcollins.org
https://stackoverflow.com/questions/17395557/observing-stale-instruction-fetching-on-x86-with-self-modifying-code
stackoverflow.com
http://doi.org/10.1109/MM.1985.304507
doi.org
Inside the Intel 386 processor die: the clock circuit Read at the source ↗
righto.com
https://doi.org/10.1049/pi-b-2.1959.0316
doi.org
https://static.righto.com/images/386-prefetch/xor.jpg
static.righto.com
https://colorcomputerarchive.com/repo/Documents/Books/Motorola%206809%20and%20Hitachi%206309%20Programming%20Reference%20(Darren%20Atkinson
colorcomputerarchive.com
http://www.bitsavers.org/components/motorola/68HC12/Motorola_68HC12_Reference_Manual_1996.pdf
bitsavers.org
https://archive.org/details/80868088primerin0002mors/page/54/mode/1up
archive.org
http://www.catb.org/jargon/html/S/SEX.html
catb.org
http://www.bitsavers.org/pdf/dec/pdp11/handbooks/DEC-11-HR6A-D_PDP-11_Conventions_197009.pdf
bitsavers.org
http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-11-XPTSA-B-D%20PDP-11%20Paper%20Tape%20Software%20Handbook.pdf
bitsavers.org
http://www.bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-11-H05AA-B-D%20PDP-11-05,%2011-10%20Computer%20Manual.pdf
bitsavers.org
https://bitsavers.trailing-edge.com/components/rca/cosmac/MPM-201A_User_Manual_for_the_CDP1802_COSMAC_Microprocessor_1976.pdf
bitsavers.trailing-edge.com
https://retrocomputing.stackexchange.com/questions/7962/when-did-intel-undergo-the-sex-change
retrocomputing.stackexchange.com