Difference between revisions of "Instruction Set/rrootd"

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Decimal floating point reciprocal square root in current rounding mode.
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Decimal float reciprocal square root.
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i.e. the result is 1/&#8730;x.
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This operation doesn't need rounding since no precision is lost.
  
 
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Revision as of 23:59, 2 January 2015

realizing  exu stream  exu block  compute phase   operation   in the decimal floating point value domain  

native on: Decimal8 Decimal16

Decimal float reciprocal square root. i.e. the result is 1/√x.

This operation doesn't need rounding since no precision is lost.


rrootd(d x) → d r0

operands: like Addd [dd:d]


Core In Slots Latencies
Decimal8 E0 E1 d:d=4 dv:dv=4 q:q=5 qv:qv=5
Decimal16 E0 E1 d:d=4 dv:dv=4 q:q=5 qv:qv=5


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