narrowd

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

native on: Decimal8 Decimal16

narrow scalar to half width

narrowd(d v) → d r0

operands: like Narrowd [dd:½d]


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

narrowd(d v1, d v2) → d r0

operands: like Narrowvd [DD:½D]


Core In Slots Latencies
Decimal8 E0 E1 dv,dv:wv=4 qv,qv:dv=5
Decimal16 E0 E1 dv,dv:wv=4 qv,qv:dv=5
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