Difference between revisions of "Instruction Set/rdivu"

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{{DISPLAYTITLE:rdivu}}
 
{{DISPLAYTITLE:rdivu}}
<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 unsigned integer value domain]]&nbsp;&nbsp;<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 unsigned integer value domain]]&nbsp;&nbsp;<br />
 
'''native on:''' [[Cores|all]]<br />
 
'''native on:''' [[Cores|all]]<br />
 
</div>
 
</div>
  
reciprocal divide
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Unsigned integer reciprocal dividion. Helper operation for software division implementation.
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This operation creates a seed value for Newton-Rapheson, or other, iterative division.
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----
 
----
 
<code style="font-size:130%"><b style="color:#050">rdivu</b>(<span style="color:#009">[[Domains#u|u]]</span> <span title="belt operand from ops window">x</span>) &#8594; [[Domains#u|u]] r<sub>0</sub></code>
 
<code style="font-size:130%"><b style="color:#050">rdivu</b>(<span style="color:#009">[[Domains#u|u]]</span> <span title="belt operand from ops window">x</span>) &#8594; [[Domains#u|u]] r<sub>0</sub></code>
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! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
 
! [[Cores|Core]] || [[Slot|In Slots]]|| [[Latency|Latencies]]
 
|-
 
|-
| [[Cores/Tin/Encoding#719|Tin]] || E0 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
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| [[Cores/Tin/Encoding#rdivu|Tin]] || E0 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
 
|-
 
|-
| [[Cores/Copper/Encoding#719|Copper]] || E0 E1 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
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| [[Cores/Copper/Encoding#rdivu|Copper]] || E0 E1 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
 
|-
 
|-
| [[Cores/Silver/Encoding#719|Silver]] || E0 E1 E2 E3 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
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| [[Cores/Silver/Encoding#rdivu|Silver]] || E0 E1 E2 E3 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
 
|-
 
|-
| [[Cores/Gold/Encoding#719|Gold]] || E0 E1 E2 E3 E4 E5 E6 E7 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
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| [[Cores/Gold/Encoding#rdivu|Gold]] || E0 E1 E2 E3 E4 E5 E6 E7 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
 
|-
 
|-
| [[Cores/Decimal8/Encoding#719|Decimal8]] || E0 E1 E2 E3 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
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| [[Cores/Decimal8/Encoding#rdivu|Decimal8]] || E0 E1 E2 E3 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
 
|-
 
|-
| [[Cores/Decimal16/Encoding#719|Decimal16]] || E0 E1 E2 E3 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
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| [[Cores/Decimal16/Encoding#rdivu|Decimal16]] || E0 E1 E2 E3 || b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2  
 
|}
 
|}
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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 09:30, 9 February 2015

speculable  exu stream  exu block  compute phase   operation   in the unsigned integer value domain  

native on: all

Unsigned integer reciprocal dividion. Helper operation for software division implementation.

This operation creates a seed value for Newton-Rapheson, or other, iterative division.


rdivu(u x) → u r0

operands: like Identity [xx:x]


Core In Slots Latencies
Tin E0 b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2
Copper E0 E1 b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2
Silver E0 E1 E2 E3 b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2
Gold E0 E1 E2 E3 E4 E5 E6 E7 b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2
Decimal8 E0 E1 E2 E3 b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2
Decimal16 E0 E1 E2 E3 b:b=1 bv:bv=1 h:h=1 hv:hv=1 w:w=1 wv:wv=1 d:d=2 dv:dv=2 q:q=2 qv:qv=2


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