View source for Instruction Set/rrootf

{{DISPLAYTITLE:rrootf}}
<div style="font-size:80%;line-height:90%;margin-bottom:2em">[[Speculation|realizing]]&nbsp;&nbsp;[[Encoding|exu stream]]&nbsp;&nbsp;[[Decode|exu block]]&nbsp;&nbsp;[[Phasing|compute phase]]&nbsp;&nbsp; operation&nbsp;&nbsp; [[Domains|in the binary floating point value domain]]&nbsp;&nbsp;<br />
'''native on:''' [[Cores/Silver|Silver]] [[Cores/Gold|Gold]] <br />
</div>

Binary float reciprocal square root.
i.e. the result is 1/&#8730;x.

This operation doesn't need rounding since no precision is lost.

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<code style="font-size:130%"><b style="color:#050">rrootf</b>(<span style="color:#009">[[Domains#f|f]]</span> <span title="belt operand from ops window">x</span>) &#8594; [[Domains#f|f]] r<sub>0</sub></code>
<div style="font-size:80%;line-height:90%;margin-bottom:2em">'''operands:''' [[Operands#likeAddf|like Addf [ff:f]]]
</div>
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{| class="mw-collapsible mw-collapsed wikitable" data-expandtext="&#9656;" data-collapsetext="&#9662;"
! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
|-
| [[Cores/Silver/Encoding#rrootf|Silver]] || E0 E1 || w:w=3 wv:wv=3 d:d=4 dv:dv=4 q:q=5 qv:qv=5 
|-
| [[Cores/Gold/Encoding#rrootf|Gold]] || E0 E1 E2 E3 || w:w=3 wv:wv=3 d:d=4 dv:dv=4 q:q=5 qv:qv=5 
|}


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