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Home > A64 General Instructions > UMSUBL |
Unsigned Multiply-Subtract Long.
This instruction is used by the alias UMNEGL
.
UMSUBL
Xd
, Wn
, Wm
, Xa
Where:
Xd
Wn
Wm
Xa
Unsigned Multiply-Subtract Long multiplies two 32-bit register values, subtracts the product from a 64-bit register value, and writes the result to the 64-bit destination register.
Xd = Xa - Wn * Wm
.