Instruction Set Architecture—IP2022 User’s Manual 92 www.ubicom.com sub fr,w Subtract W from
fr into fr 1 0000 101f ffff ffff   C, DC, Z sub w,fr Subtract W from
fr into W 1 0000 100f ffff ffff   C, DC, Z sub w,#lit8 Subtract W from
literal into W 1 0111 1010 kkkk kkkk   C, DC, Z subc fr,w Subtract carry,W
from fr into fr 1 0100 101f ffff ffff   C, DC, Z subc w,fr Subtract carry,W
from fr into W 1 0100 100f ffff ffff   C, DC, Z swap fr Swap high,low
nibbles of fr into
fr 1 0011 101f ffff ffff None swap w,fr Swap high,low
nibbles of fr into
W 1 0011 100f ffff ffff None test fr Test fr for zero 1 0010 001f ffff ffff Z Table 3-4  Arithmetic and Shift Instructions (continued) Assembler Syntax Description Opcode