// Two operand instructions (Rs,Rd)
// ADD, ADDC, AND, CMP, DIV, IMACN, IMULT, IMULTN, MOVEFA, MOVETA, MULT,
// MMULT, MTOI, NORMI, OR, ROR, SH, SHA, SUB, SUBC, XOR
// Two operand instructions (Rs,Rd)
// ADD, ADDC, AND, CMP, DIV, IMACN, IMULT, IMULTN, MOVEFA, MOVETA, MULT,
// MMULT, MTOI, NORMI, OR, ROR, SH, SHA, SUB, SUBC, XOR