View source for Instruction Set/narrowfn

{{DISPLAYTITLE:narrowfn}}
<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>

narrow scalar to half width
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<code style="font-size:130%"><b style="color:#050">narrowfn</b>(<span style="color:#009">[[Domains#f|f]]</span> <span title="belt operand from ops window">v</span>) &#8594; [[Domains#f|f]] r<sub>0</sub></code>
<div style="font-size:80%;line-height:90%;margin-bottom:2em">'''operands:''' [[Operands#likeNarrowf|like Narrowf [ff:&#189;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#narrowfn|Silver]] || E0 E1 || w:h=3 d:w=4 q:d=5 
|-
| [[Cores/Gold/Encoding#narrowfn|Gold]] || E0 E1 E2 E3 || w:h=3 d:w=4 q:d=5 
|}

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<code style="font-size:130%"><b style="color:#050">narrowfn</b>(<span style="color:#009">[[Domains#f|f]]</span> <span title="belt operand from ops window">v1</span>, <span style="color:#009">[[Domains#f|f]]</span> <span title="belt operand from ops window">v2</span>) &#8594; [[Domains#f|f]] r<sub>0</sub></code>
<div style="font-size:80%;line-height:90%;margin-bottom:2em">'''operands:''' [[Operands#likeNarrowvf|like Narrowvf [FF:&#189;F]]]
</div>
<br />

{| class="mw-collapsible mw-collapsed wikitable" data-expandtext="&#9656;" data-collapsetext="&#9662;"
! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
|-
| [[Cores/Silver/Encoding#narrowfn|Silver]] || E0 E1 || wv,wv:hv=3 dv,dv:wv=4 qv,qv:dv=5 
|-
| [[Cores/Gold/Encoding#narrowfn|Gold]] || E0 E1 E2 E3 || wv,wv:hv=3 dv,dv:wv=4 qv,qv:dv=5 
|}


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