the memory block depends on the system. Most of the time it
will be harmless, but not always. For example, in an Atari ST with 4 MB of RAM,
this will trigger a bus error.</p>

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

<p class=MsoNormal>But probably the most important effect of the prefetch is on
self-modified code …</p>

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

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