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Converts uint8_t type data to uint32_t type.

Since the bit-width ratio of the source operand to the destination operand is 1:4, when reading data, a VL-sized block of data needs to be divided into four parts, and index 0, index 1, index 2, or index 3 is selected based on the interface used.

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For details about vector data registers and mask registers, see .

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PIPE_V

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