z80 fast loop - SERP Analysis

https://map.grauw.nl/articles/fast_loops.php

https://www.reddit.com/r/Z80/comments/mf21yx/does_anybody_know_of_a_good_z80_calibrated_timing/

https://wikiti.brandonw.net/index.php?title=Z80_Optimization

https://stackoverflow.com/questions/42240618/is-there-a-way-to-add-code-to-an-infinite-z80-assembly-loop

https://retrocomputing.stackexchange.com/questions/4744/how-fast-is-memcpy-on-the-z80

https://news.ycombinator.com/item?id=23762170

https://www.electricadventures.net/Pages/Article/123

https://www.cemetech.net/forum/viewtopic.php?t=12784&start=0

https://forums.atariage.com/topic/249000-z80-assembly-question/

http://www.z80.info/lesson3.htm

https://retrocomputingforum.com/t/how-is-the-ez80-3x-faster-than-the-z80/4372

https://www.smspower.org/Development/Z80ProgrammingTechniques

https://groups.google.com/g/comp.os.cpm/c/sTyw0mHDKqE

https://chilliant.com/z80shift.html

https://tutorials.eeems.ca/Z80ASM/part4.htm

https://www.youtube.com/watch?v=okLPQWs8ExQ

https://en.wikipedia.org/wiki/Zilog_Z80

https://github.com/jhlagado/struct-z80/blob/master/dloop.md

https://www.zilog.com/docs/z80/um0080.pdf

https://learn.cemetech.net/index.php/Z80:Unrolled_Loops

http://www.retroprogramming.com/2017/07/a-fast-z80-integer-square-root.html

https://github.com/skx/z80-examples/blob/master/ram-increment.z80

https://www.youtube.com/watch?v=E8V5paRlu-4

http://cowlark.com/2018-03-18-z80-arithmetic/index.html

https://tutorials.eeems.ca/Z80ASM/part2.htm

https://map.grauw.nl/articles/mult_div_shifts.php

https://msx.org/forum/development/msx-development/z80-speedup-struct-arrays-8bit-style

https://www.youtube.com/watch?v=UB3tTiRFrY4

https://wikiti.brandonw.net/index.php?title=Z80_Routines:Math:Square_root

https://domipheus.com/blog/teensy-z80-part-1-intro-memory-serial-io-and-display/

https://www.smspower.org/forums/8253-Z80ProgrammingTricks

https://www.youtube.com/watch?v=RSqrq4AMi9M

https://www.msx.org/forum/development/msx-development/fastest-possible-multiplication-routine?page=4

https://www.chibiakumas.com/z80/

http://www.dbfinteractive.com/forum/index.php?topic=3174.0

https://www.youtube.com/watch?v=6cWidWbx2o8

http://www.breakintoprogram.co.uk/hardware/computers/zx-spectrum/assembly-language/z80-library-routines

https://www.youtube.com/watch?v=bDeTXpmH5RA

https://www.ftp83plus.net/Tutorials/z80optiA.htm

https://floooh.github.io/2021/12/06/z80-instruction-timing.html

https://www.youtube.com/watch?v=mRV55685XO0

https://www.reids4fun.com/544/meow-in-motion-a-z80-assembly-version-of-a-classic-cat-animation-on-the-zx81

http://ht.homeserver.hu/html/emulatorfastz80.html

https://rvbelzen.tripod.com/z80prgtemp/z80prg03.htm

https://www.theregister.com/2024/04/26/long_live_16_bit_z80/

http://48k.ca/fill.html

https://www.cpcwiki.eu/forum/programming/the-fast-multiplication/

http://www.z80.info/z80lives.htm

https://www.classcentral.com/course/youtube-learn-z80-assembly-lesson-8-unwrapped-loops-stack-misuse-for-speed-rarer-z80-commands-176076

http://www.sxlist.com/techref/zilog/z80/part4.htm

https://tomdalby.com/other/crc.html

https://hackaday.io/project/190345/logs

https://www.jamieonkeys.dev/posts/til-z80-asm-hello-world/

https://www.z88dk.org/forum/viewtopic.php?t=11861

https://bread80.com/2020/08/13/couch-to-64k-part-2-adding-rom-to-our-breadboard-z80-computer/

https://kaashif.co.uk/2022/02/10/leetcode-on-a-z80-cpu-from-1976/

http://www.massmind.org/techref/zilog/z80/part3.htm

https://www.msxcomputermagazine.nl/mccw/92/Multiplication/en.html

https://ncot.uk/videos/optimised-z80-conways-life-improved/

https://groups.google.com/g/comp.os.cpm/c/P1aIUWhg16Y

https://jgmalcolm.com/z80/beginner/math

https://comp.os.cpm.narkive.com/iupP3HdG/z80-divide-by-five

https://benjamin.computer/posts/2022-04-22-ZX-coding.html

https://forum.pjrc.com/index.php?threads/questions-about-interrupts-and-loop.54634/page-2

https://www.reids4fun.com/533/more-mandelbrot-set-fun-in-z80-assembly

https://www.paleotechnologist.net/?p=2589

https://www.cpcwiki.eu/forum/programming/z80-programming-ideas/

https://baltazarstudios.com/z80-cpu/

https://jacobielectronix.wordpress.com/2016/02/13/retro-z80-input-output/

https://news.ycombinator.com/item?id=39123896

https://nowhereman999.wordpress.com/2017/03/30/zilog-z80-to-motorola-6809-transcode-part-020-sound-ideas/

https://www.embeddedrelated.com/showthread/comp.arch.embedded/122978-1.php

https://www.eevblog.com/forum/projects/i_m-planning-on-doing-a-z80-project-how-can-i-do-this/5/?wap2

http://z80-heaven.wikidot.com/math

https://www.quora.com/If-Intel-built-an-exact-copy-of-the-original-Z80-micro-processor-using-todays-state-of-the-art-manufacturing-technology-how-many-times-faster-would-it-be

https://retrocomputingforum.com/t/z80-instruction-timing-tables/4478

https://forums.parallax.com/discussion/comment/1204590

https://www.luke.maurits.id.au/blog/post/on-choosing-the-z80-over-the-6502.html

https://olduino.wordpress.com/2016/05/17/a-bit-disappointed-in-the-z80-spi-speed/

https://forums.nesdev.org/viewtopic.php?t=14723

https://www.youtube.com/watch?v=aB9AuKx8kBU

http://www.chrisfenton.com/the-zedripper-part-1/

http://www.vogons.org/viewtopic.php?t=75074

https://www.instructables.com/Revisiting-the-Z80-Computer/

https://quick09.tistory.com/1311

https://codewalr.us/archive2.php?topic=199.330

http://forum.6502.org/viewtopic.php?f=3&t=2303

http://crepinc.com/index.php?/categories/6-Z80

https://www.retrobrewcomputers.org/forum/index.php?t=msg&th=248&goto=4125&

https://www.chibiakumas.com/z80/advanced.php

https://dotneteer.github.io/spectnetide/documents/main-features

https://z80avrproject.wordpress.com/2016/10/23/z80-testing-simple-program-to-exercise-the-uart/

http://blog.retroleum.co.uk/electronics-articles/previous/z80-project-the-early-years/

https://www.omnimaga.org/asm-language/ez80-optimized-routines/

https://forum.arduino.cc/t/another-z80-project/396575

http://www.sxlist.com/techref/zilog/z80/part2.htm

https://forums.atariage.com/topic/266648-conversion-of-z80-code-to-tms9900/page/3/

https://stardot.org.uk/forums/viewtopic.php?t=19819

https://www.smbaker.com/intro-to-z80-retrocomputing