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Node:<a name="SH64-Addressing">SH64-Addressing</a>,

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<h5 class="subsection">Addressing Modes</h5>



   <p>SH64 operands consist of either a register or immediate value.  The

immediate value can be a constant or label reference (or portion of a

label reference), as in this example:



<pre class="example">     	movi	4,r2

     	pt	function, tr4

     	movi	(function &gt;&gt; 16) &amp; 65535,r0

     	shori	function &amp; 65535, r0

     	ld.l	r0,4,r0

     </pre>



   <p>Instruction label references can reference labels in either SHmedia or

SHcompact.  To differentiate between the two, labels in SHmedia sections

will always have the least significant bit set (i.e. they will be odd),

which SHcompact labels will have the least significant bit reset

(i.e. they will be even).  If you need to reference the actual address

of a label, you can use the <code>datalabel</code> modifier, as in this

example:



<pre class="example">     	.long	function

     	.long	datalabel function

     </pre>



   <p>In that example, the first longword may or may not have the least

significant bit set depending on whether the label is an SHmedia label

or an SHcompact label.  The second longword will be the actual address

of the label, regardless of what type of lable it is.



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