subus

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

aliases: subus2
native on: all

Saturating unsigned integer subtraction. When a result value overflows for the width, it flats out at the biggest value.


subus(u x, u y) → u r0

operands: like Identity [xx:x]


Core In Slots Latencies
Tin E0
Copper E0
Silver E0 E1 E2 E3
Gold E0

subus(u x, imm y) → u r0

operands: like Identity [xx:x]


Core In Slots Latencies
Tin E0
Copper E0
Silver E0 E1 E2 E3
Gold E0


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