Difference between revisions of "Instruction Set/widenv"

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m (Protected "Instruction Set/widenv": generated ([Edit=<protect-level-bot>] (indefinite) [Move=<protect-level-bot>] (indefinite)))
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widen to double width
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Double the scalar widths in an unsigned integer vector.
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Zero extends the upper half.
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The natively available byte widths on all [[Cores]] are 1, 2, 4, 8, and on the high end also 16.
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Vector widen operations always produce two result vectors to accomodate the widening of maximum size vectors. The first result vector then contains the widened values of the lower half of the operand, and the second result the upper.
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<code style="font-size:130%"><b style="color:#050">widenv</b>(<span style="color:#009">[[Domains#op|op]]</span> <span title="belt operand from ops window">v</span>) &#8594; [[Domains#op|op]] r<sub>0</sub>, [[Domains#op|op]] r<sub>1</sub></code>
 
<code style="font-size:130%"><b style="color:#050">widenv</b>(<span style="color:#009">[[Domains#op|op]]</span> <span title="belt operand from ops window">v</span>) &#8594; [[Domains#op|op]] r<sub>0</sub>, [[Domains#op|op]] r<sub>1</sub></code>

Revision as of 10:38, 11 January 2015

realizing  exu stream  exu block  compute phase   operation   in the logical value domain  

aliases: widenuv
native on: all

Double the scalar widths in an unsigned integer vector.

Zero extends the upper half.

The natively available byte widths on all Cores are 1, 2, 4, 8, and on the high end also 16.

Vector widen operations always produce two result vectors to accomodate the widening of maximum size vectors. The first result vector then contains the widened values of the lower half of the operand, and the second result the upper.


widenv(op v) → op r0, op r1

operands: like Widenv XX:2X2X


Core In Slots Latencies
Tin E0 2 2
Copper E0 E1 2 2
Silver E0 E1 E2 E3 2 2
Gold E0 E1 E2 E3 E4 E5 E6 E7 2 2
Decimal8 E0 E1 E2 E3 2 2
Decimal16 E0 E1 E2 E3 2 2

widenv(op v1, op v2) → op r0, op r1

operands: like Widenv XX:2X2X


Core In Slots Latencies
Tin E0 2 2
Copper E0 E1 2 2
Silver E0 E1 E2 E3 2 2
Gold E0 E1 E2 E3 E4 E5 E6 E7 2 2
Decimal8 E0 E1 E2 E3 2 2
Decimal16 E0 E1 E2 E3 2 2


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