Skip the next half-words if the register's LSB is cleared (the value is even).
The 4-bit SRC2 field contains the Skip Length, a signed integer (between -8 and 7) that indicates how many half-words must be skipped (from the instruction's opcode address).
This instuction is also known under the alias SE.
The Imm16 field is not used because the negation field already provides with a XOR.
This is one of the instructions of the SKIP group, see also : SKIP, SZ/SNZ, SO/SNE, SS/SNS.