This process was sometimes called linkage editing and the output known as a load module. A compiler works with what are sometimes called 3GL and higher-level languages. An assembler works on programs written using a processor's assembler language.
In general, however, when between vowels (as in exactamente) the Spanish x is pronounced like the English ks sound but softer or less explosive. When it comes before another consonant (as in expediciÃ³n), it has the s sound in some regions/countries but the soft ks sound in others.
the (X)in NAHUATL should have the (sh) sound in english. sh-o-chi-tl.....the (TL) should be pronounced by saying (T) sound while pushing your toung against your top teeth & leaving it there....air should leave the side of your mouth if done right.