FBT_OP_MASK
if ((*instr & FBT_OP_MASK) == FBT_OP0 &&
int op = *instr & FBT_OP_MASK;
#define FBT_FMT1_OP(val) ((val) & FBT_OP_MASK)
((((instr) & FBT_OP_MASK) == FBT_OP0 && \
((instr) & FBT_OP_MASK) == FBT_OP1 || \
((((instr) & FBT_OP_MASK) == FBT_OP0 && \
((instr) & FBT_OP_MASK) == FBT_OP1 || \
if ((first & FBT_OP_MASK) != FBT_OP0 ||