Difference between revisions of "Instruction Set/mulsfwfz"

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{{DISPLAYTITLE:mulsfwfz}}
 
{{DISPLAYTITLE:mulsfwfz}}
<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 signed fixed point value domain]]&nbsp;&nbsp; [[Overflow|using widening overflow behavior]]&nbsp;&nbsp; [[Condition Code|that produces condition codes]]<br />
+
<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 signed fixed point value domain]]&nbsp;&nbsp; [[Overflow|using widening overflow behavior]]&nbsp;&nbsp; [[Condition Code|that produces condition codes]] [[Rounding|and rounds to nearest, ties away from zero]]<br />
 
'''native on:''' [[Cores|all]]<br />
 
'''native on:''' [[Cores|all]]<br />
 
</div>
 
</div>
  
multiplication
+
Signed Fixed Point multiply. Rounds towards nearest away from zero.
 +
Widening.
 +
 
 
----
 
----
 
<code style="font-size:130%"><b style="color:#050">mulsfwfz</b>(<span style="color:#009">[[Domains#sf|sf]]</span> <span title="belt operand from ops window">x</span>, <span style="color:#009">[[Domains#sf|sf]]</span> <span title="belt operand from ops window">y</span>, <i><span style="color:#009">[[Immediates#bit|bit]]</span> <span title="bit number">dot</span></i>) &#8594; [[Domains#sf|sf]] r<sub>0</sub></code>
 
<code style="font-size:130%"><b style="color:#050">mulsfwfz</b>(<span style="color:#009">[[Domains#sf|sf]]</span> <span title="belt operand from ops window">x</span>, <span style="color:#009">[[Domains#sf|sf]]</span> <span title="belt operand from ops window">y</span>, <i><span style="color:#009">[[Immediates#bit|bit]]</span> <span title="bit number">dot</span></i>) &#8594; [[Domains#sf|sf]] r<sub>0</sub></code>

Revision as of 18:52, 20 December 2014

realizing  exu stream  exu block  compute phase   operation   in the signed fixed point value domain   using widening overflow behavior   that produces condition codes and rounds to nearest, ties away from zero

native on: all

Signed Fixed Point multiply. Rounds towards nearest away from zero. Widening.


mulsfwfz(sf x, sf y, bit dot) → sf r0

operands: like Identity [xx:x]


Core In Slots Latencies
Tin E0 b,b:b=3 bv,bv:bv=3 h,h:h=3 hv,hv:hv=3 w,w:w=3 wv,wv:wv=3 d,d:d=4 dv,dv:dv=4 q,q:q=4 qv,qv:qv=4
Copper E0 b,b:b=3 bv,bv:bv=3 h,h:h=3 hv,hv:hv=3 w,w:w=3 wv,wv:wv=3 d,d:d=4 dv,dv:dv=4 q,q:q=4 qv,qv:qv=4
Silver E0 E1 b,b:b=3 bv,bv:bv=3 h,h:h=3 hv,hv:hv=3 w,w:w=3 wv,wv:wv=3 d,d:d=4 dv,dv:dv=4 q,q:q=4 qv,qv:qv=4
Gold E0 E1 E2 E3 b,b:b=3 bv,bv:bv=3 h,h:h=3 hv,hv:hv=3 w,w:w=3 wv,wv:wv=3 d,d:d=4 dv,dv:dv=4 q,q:q=4 qv,qv:qv=4
Decimal8 E0 E1 b,b:b=3 bv,bv:bv=3 h,h:h=3 hv,hv:hv=3 w,w:w=3 wv,wv:wv=3 d,d:d=4 dv,dv:dv=4 q,q:q=4 qv,qv:qv=4
Decimal16 E0 E1 b,b:b=3 bv,bv:bv=3 h,h:h=3 hv,hv:hv=3 w,w:w=3 wv,wv:wv=3 d,d:d=4 dv,dv:dv=4 q,q:q=4 qv,qv:qv=4


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