narrowfn

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

native on: Silver Gold

narrow scalar to half width

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narrowfn(f v) → f r0

operands: like Narrowf [ff:½f]

Core	In Slots	Latencies
Silver	E0 E1	w:h=3 d:w=4 q:d=5
Gold	E0 E1 E2 E3	w:h=3 d:w=4 q:d=5

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narrowfn(f v1, f v2) → f r0

operands: like Narrowvf [FF:½F]

Core	In Slots	Latencies
Silver	E0 E1	wv,wv:hv=3 dv,dv:wv=4 qv,qv:dv=5
Gold	E0 E1 E2 E3	wv,wv:hv=3 dv,dv:wv=4 qv,qv:dv=5