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Home > A64 SIMD Vector Instructions > UDOT (vector) |
Dot Product unsigned arithmetic (vector).
UDOT
Vd
.Ta
, Vn
.Tb
, Vm
.Tb
Where:
Vd
Ta
2S
or 4S
.
Vn
Tb
8B
or 16B
.
Vm
Supported in ARMv8.2 and later.
For ARMv8.2 and ARMv8.3, this is an optional instruction.
Dot Product unsigned arithmetic (vector). This instruction performs the dot product of the four 8-bit elements in each 32-bit element of the first source register with the four 8-bit elements of the corresponding 32-bit element in the second source register, accumulating the result into the corresponding 32-bit element of the destination register.
Depending on the settings in the CPACR_EL1, CPTR_EL2, and CPTR_EL3 registers, and the current Security state and Exception level, an attempt to execute the instruction might be trapped.