IP2022 User’s Manual—Instruction Set Architecture www.ubicom.com 177 Example: muls  w,0x099;signed multiply, ;0x099 by W into MULH and W This example multiplies the contents of the data
memory   location   at   address   0x099   by   the
contents of W into W. The high byte of the result
is loaded into the MULH register, and the low byte
is loaded into W. If W holds 0x07 and 0x099 holds 0x06, the result
loaded   into   MULH   ||   W   will   be   0x002A   (42
decimal). If  W  holds  0xF9  (-7  decimal)  and  0x099  holds
0x06,  the  result  loaded  into  MULH  ||  W  will  be
0xFFD6 (-42 decimal). If  W  holds  0xF9  (-7  decimal)  and  0x099  holds
0xFA (-6 decimal), the result loaded into MULH ||
W will be 0x002A (42 decimal).