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Node:<a name="Z8000-Regs">Z8000-Regs</a>,

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<h5 class="subsection">Register Names</h5>



   <p>The Z8000 has sixteen 16 bit registers, numbered 0 to 15.  You can refer

to different sized groups of registers by register number, with the

prefix <code>r</code> for 16 bit registers, <code>rr</code> for 32 bit registers and

<code>rq</code> for 64 bit registers.  You can also refer to the contents of

the first eight (of the sixteen 16 bit registers) by bytes.  They are

named <code>r</code><var>n</var><code>h</code> and <code>r</code><var>n</var><code>l</code>.



<pre class="smallexample"><br><em>byte registers</em><br>

     r0l r0h r1h r1l r2h r2l r3h r3l

     r4h r4l r5h r5l r6h r6l r7h r7l

     

<br><em>word registers</em><br>

     r0 r1 r2 r3 r4 r5 r6 r7 r8 r9 r10 r11 r12 r13 r14 r15

     

<br><em>long word registers</em><br>

     rr0 rr2 rr4 rr6 rr8 rr10 rr12 rr14

     

<br><em>quad word registers</em><br>

     rq0 rq4 rq8 rq12

     </pre>



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