Signed and Unsigned Bit Field Extract. Copies adjacent bits from one register into the least significant bits of a second register, and sign extends or zero extends to 32 bits.
is an optional condition code.
is the destination register.
is the source register.
is the bit number of least significant bit in the bitfield, in the range 0 to 31.
is the width of the bitfield, in the range 1 to (32-