... the 80 286 and 80 386 , both of which offer additional instructions not found in the 80 86 /80 88. By and large, I'll only be introducing instructions in this book that the 80 86 /80 88 understand. ... element in PC assembly language: The 80 86/ 80 88 CPU. Most books on assembly language, even those targeted at beginners assume that the CPU is as good a place as any to start their story, without ... lines to identify one byte out of the megabyte. 16-Bit Blinders The 80 88 and 80 86 can "see" a full megabyte. That is, the CPU chips have 20 address pins, and can pass a full 20-bit...