tools and emulators

list of emulators
https://www.emutopia.com/index.php/emulators/category-items/3-emulators/320-atari-400-800-xl-xe
atari800 emulator
https://atari800.github.io/
https://github.com/atari800/atari800
standalone datamining tool
https://github.com/rossumur/esp_8_bit/blob/master/atr_image_explorer.htm
old emulator, has original firmware files if you want them
https://sourceforge.net/projects/atari800/files/ROM/Original%20XL%20ROM/xf25.zip
http://www.emulators.com/xformer.htm
best emulator for windows, with datamining tools
https://www.virtualdub.org/altirra.html

atari 800 info

atari game datamining
http://bringerp.free.fr/RE/
general atari intro thread
https://atariage.com/forums/topic/176545-topic-for-newbies-or-veterans-returning-to-atari/
turbo-DOS
https://atariwiki.org/wiki/Wiki.jsp?page=Turbo-DOS

BASIC variant it was programmed in
https://en.wikipedia.org/wiki/Turbo-BASIC_XL
https://atariwiki.org/wiki/Wiki.jsp?page=Turbo-BASIC%20XL
joystick it was made for
https://en.wikipedia.org/wiki/Atari_CX40_joystick
Atari manuals http://www.atarimania.com/documents-atari-400-800-xl-xe-manuals_2_8.html
Atari BASIC manual with music note table
http://www.atarimania.com/documents/Atari-Basic-Reference-Manual-Rev-C.pdf
assembly programming manual
https://www.atariarchives.org/alp/
SPN
https://en.wikipedia.org/wiki/Scientific_pitch_notation
disk error codes
https://page6.org/archive/issue_22/page_10.htm
USR function info
https://www.page6.org/archive/issue_11/page_24.htm

sampler software atrs
https://atariage.com/forums/topic/205965-sample-cartridge/#comments
list of sample software
http://www.atarimania.com/faq-atari-400-800-xl-xe-what-sound-digitizers-samplers-were-produced-for-the-atari_65.html
more sample software information
https://atari-owner.com/club/articles/audio-solutions-for-the-atari-8-bit-home-computer.32/
sound n sampler 2 http://forum.atarimania.com/viewtopic.php?f=2&t=18563&p=35093&sid=bfee8ded313d3674a9c11f1aad50496d#p35093
sound n sampler demo
https://youtu.be/E0nDiNJkJlc
digitised sound discussion
https://atariage.com/forums/topic/229953-digitized-sounds/
atari music archive with info
http://asma.atari.org/
file extension details
https://atariwiki.org/wiki/Wiki.jsp?page=File%20Suffix
atarimania entry for sound n sampler, missing stuff
http://www.atarimania.com/utility-atari-400-800-xl-xe-sound-n-sampler_15982.html
square wave
https://en.wikipedia.org/wiki/Square_wave
sampler
https://demozoo.org/productions/145427/
SAMPLER MANUAL!
https://de.wikipedia.org/wiki/Atari_800XL#cite_note-170
https://www.strotmann.de/~cas/Infothek/SoundNSampler/soundn.pdf
PICO-8 sampling discussion
https://www.lexaloffle.com/bbs/?tid=33309
https://www.lexaloffle.com/bbs/?pid=88937
https://www.lexaloffle.com/bbs/?tid=42809

ZONG magazine archive https://web.archive.org/web/20160322024937/http://www.kemalsatariarchiv.gmxhome.de/von1989.html
ZONG pdfs
http://www.atarimania.com/atari-magazine-zong_38.html
mobygames listing
https://www.mobygames.com/company/ke-soft
german wikipedia article
https://de.m.wikipedia.org/wiki/KE-SOFT
https://de-m-wikipedia-org.translate.goog/wiki/KE-SOFT?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp

forum post by them
https://atariage.com/forums/topic/233511-ke-soft-kemal-ezcan-zong-atari-8-bit-games-and-music/
their websites
https://www.yodasvideoarcade.com/
https://yodagames.de/
an interview
https://www.kultboy.com/Yoda-Zhang-Interview/40/
https://www-kultboy-com.translate.goog/Yoda-Zhang-Interview/40/?_x_tr_sl=de&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=sc

hollow VOD
https://youtu.be/QSFgMCD7zUU
highscore.com page (only three entries lol)
http://highscore.com/games/Atari400800XLXEEmulated/Bros/58675 game-atari-400-800-xl-xe-tobot-bros_5425.html
someone plays the whole thing
https://therubberfruit.tumblr.com/post/166757423277/i-tried-to-see-if-i-could-play-through-bros-atari
playable archive.org page
https://archive.org/details/a8b_Bros_1989_KE_Soft_DE_en_a3
atari8.info page
https://gury.atari8.info/detail.php?id=873&src=2&c=ch=b
spritersresource page
https://www.spriters-resource.com/atari/bros/sheet/55358/
rivals of aether mod lmao
https://steamcommunity.com/sharedfiles/filedetails/?id=2021255136