Difference between revisions of "Instruction Set/rootfn"

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(Created page with "{{DISPLAYTITLE:rootfn}} <div style="font-size:80%;line-height:90%;margin-bottom:2em">realizing  exu stream Decode|exu block...")
 
 
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{{DISPLAYTITLE:rootfn}}
 
{{DISPLAYTITLE:rootfn}}
<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; [[Condition Code|that produces condition codes]]<br />
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<div style="font-size:80%;line-height:90%;margin-bottom:2em">[[Speculation|speculable]]&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; [[Condition Code|that produces condition codes]] [[Rounding|and rounds toward negative infinity]]<br />
'''native on:''' [[Assembly|none]]<br />
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'''native on:''' [[Cores/Silver|Silver]] <br />
 
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square root
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Floating point square root rounding towards nearest.
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----
 
----
 
<code style="font-size:130%"><b style="color:#050">rootfn</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>
 
<code style="font-size:130%"><b style="color:#050">rootfn</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>
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{| class="mw-collapsible mw-collapsed wikitable" data-expandtext="&#9656;" data-collapsetext="&#9662;"
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! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
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|-
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| [[Cores/Silver/Encoding#rootfn|Silver]] || E0 || rw:rw=3 rd:rd=4 rq:rq=5 rvw:rvw=3 rvd:rvd=4 rvq:rvq=5
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|}
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[[Instruction_Set|Instruction Set, alphabetical]], [[Instruction Set by Category]], [http://millcomputing.com/instructions.html?collapse=7#ops Instruction Set, sortable, filterable]

Latest revision as of 14:03, 23 February 2021

speculable  exu stream  exu block  compute phase   operation   in the binary floating point value domain   that produces condition codes and rounds toward negative infinity

native on: Silver

Floating point square root rounding towards nearest.


rootfn(f x) → f r0

operands: like Addf [ff:f]


Core In Slots Latencies
Silver E0 rw:rw=3 rd:rd=4 rq:rq=5 rvw:rvw=3 rvd:rvd=4 rvq:rvq=5


Instruction Set, alphabetical, Instruction Set by Category, Instruction Set, sortable, filterable