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PHMINPOSUW

PHMINPOSUW compares two unsigned word values and stores the index (position) of the minimum value into the destination operand. If the values are equal, the index of the second operand is stored.

The following table covers what the source and destinations can be.

DO NOT support LOCK

This instruction is only available in 64-bit mode. It is not supported in compatibility mode.

To avoid incorrect results, ensure the destination register is treated as a 64-bit register, as the index returned is a 64-bit unsigned integer representing the position. Failure to account for the register size may lead to truncated index values.