You can find the asl script in: https://github.com/xtagnado/Xtag-Autosplitters

Open your Livesplit software.

Right click in Livesplit (i use 1.8.21 livesplit) then click in "Edit Layout...". In layout editor click on "+" button, choose "control" in hover menu then "Scriptable Auto Splitter". When you click it a new item will be showed in layout setup, double click on "Scriptable Auto Splitter". Now in "Script Path" you can choose your autosplitter location. Leave the "Start", "Split" and "Reset" checkboxs marked. I'm not developer so the autosplitter could works wrongly in some cases.

Version note: The autosplitters is made by modifing the ALTTP's autosplitter and works in the following emulators:

Snes9x-rr 1.52 | 1.54 | 1.60 (x86 and x64) Snes9x 1.53 | 1.54 | 1.54.1 | 1.55 | 1.56 | 1.57 | 1.58 | 1.59.2 | 1.60 (x86 and x64) Higan v102 | v103 | v104 | v105tr1 | v106 | v106.112 | v107 | v108 | v109 | v110 (x86 and x64). Bsnes v107 | v107.1 | v107.2 | v107.3 | v108 | v109 | v110 | v111 | v112 | v115 BizHawk (BSnes Core) 2.3.0 | 2.3.0 | 2.3.2 | 2.6.0 | 2.7.0 | 2.8 (BSnes, BSnes v115+, Snes9x and Faust Cores) Ares v115 | v117 | v118 | v121a | v122 | v123 | v124 | v125 | v126 | v127 | v128 | v129. The Retroarch and RALibRetro won't worked consistently, so maybe in the future i'll upgrade the autosplitters.

You can find me on Discord for future questions, suggestions or shoutouts. Feel free to participate in speedrun's forum or pm me. (Xtagnado#0430 or ID:191598210282684416) I'm Brazillian so my english can be a little truncade or unusual, but i'm doing my best.