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Mojo function

decode_fp6_to_bf16

def decode_fp6_to_bf16[width: SIMDLength, //, fmt: FP6Format](code: SIMD[DType.uint8, width]) -> SIMD[DType.bfloat16, width]

Decodes FP6 codes to bfloat16.

Every FP6 value carries at most 3 mantissa bits and lives well inside bfloat16's exponent range, so the float32 decode followed by a bfloat16 cast is exact -- the cast never rounds.

Parameters:

• ​width (SIMDLength): SIMD width (lane count) of the code vector.
• ​fmt (FP6Format): The FP6 encoding of the input codes.

Args:

• ​code (SIMD[DType.uint8, width]): One FP6 code per lane in the low 6 bits (0..63).

Returns:

SIMD[DType.bfloat16, width]: The decoded values as SIMD[DType.bfloat16, width].