you can rewrite this asm 
source to high level and compile in clang compiler 
or 
use GTAV Script Assembler 
to compile asm on csc

or make your own script loader prototype

you see PushString "modmanager"

this is name your script mod to load

must be the same as your script mod.csc

and put this compiled loader 

mission_stat_alerter.csc

with your script mod

to 
update.rpf / PS3 / Patch / Levels / Gta5 / Script,
