VQDMLAL and VQDMLSL (by vector or by scalar)
Vector Saturating Doubling Multiply Accumulate Long, Vector Saturating Doubling Multiply Subtract Long.
must be one of:
is an optional condition code.
must be either
are the destination vector and the first operand vector.
is the vector holding the second operand, for a by vector operation.
is the scalar holding the second operand, for a by scalar operation.
These instructions multiply their operands and double the results.
adds the results to the values in the destination register.
subtracts the results from the values in the destination register.
If any of the results overflow, they are saturated. The sticky QC flag (FPSCR bit) is set if saturation occurs.