Asembler or Assembler: How To spell?
The word Asembler is misspelled against Assembler, a noun meaning "One who assembles a number of individuals; also, one of a number assembled."
Assembler has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings a & embler which should not be misspelled with single 'S'
Wrong Spelling:  a-s-embler  Correct Spelling:  a-ss-embler 
Explore spell check of Assembler to spell without errors.