<https://gtaforums.com/topic/194199-documenting-gta-sa-memory-addresses/page/14/#comment-3491833>
<http://schema.org/text>
"retn is an asm command like nop.  "
<https://gtaforums.com/topic/194199-documenting-gta-sa-memory-addresses/page/14/?tab=comments#comment-3466922>