logBd

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

native on: Decimal8 Decimal16

extract exponent

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logBd(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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