Instruction Set Architecture—IP2022 User’s Manual 178 www.ubicom.com MULS W,#lit8 Signed Multiply W,Literal into MULH || W Operation: W = W × lit8; low 8 bits of signed product
MULH = W × lit8; high 8 bits of signed product Bits affected: None Opcode: 0111 0011 kkkk kkkk Description: This instruction performs a signed multiply of an
8-bit literal by the contents of W. The low 8 bits of
the product are written to W, and the high 8 bits
are   written   to   the   MULH   register.   The   data
memory location is left unchanged. Both    operands    are    interpreted    as    two’s-
complement numbers, and the result loaded into
MULH || W is also in two’s complement format. Cycles: 1