rootu

speculable  exu stream  exu block  compute phase   operation   in the unsigned integer value domain   that produces condition codes

native on: all

Unsigned integer square root. Helper operation for software square root implementation.

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

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rootu(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

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