ce for two words (four bytes). This means that before <b>any</b>
instruction starts execution, its opcode word and the next one were already
read. The second word, depending on the instruction, could be an extension word
for the current instruction, or the opcode for the next one.</p>

<p class=MsoNormal><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></p>

<p class=MsoNormal>A modern CPU usually has more or less independent separate
units. One unit processes actual CPU operations such as arith