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<h5 class="subsubsection">9.54.2.2 Register Names</h5>
<p><a name="index-Z8000-registers-2535"></a><a name="index-registers_002c-Z8000-2536"></a>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 ‘<samp><span class="samp">r</span></samp>’ for 16 bit registers, ‘<samp><span class="samp">rr</span></samp>’ for 32 bit registers and
‘<samp><span class="samp">rq</span></samp>’ 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 ‘<samp><span class="samp">rl</span><var>n</var></samp>’ and ‘<samp><span class="samp">rh</span><var>n</var></samp>’.
<pre class="smallexample"><br><em>byte registers</em><br>
rl0 rh0 rl1 rh1 rl2 rh2 rl3 rh3
rl4 rh4 rl5 rh5 rl6 rh6 rl7 rh7
<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
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