OP_BR_ADDR_HI
FIELD_PREP(OP_BR_ADDR_HI, addr_hi);
addr_hi = FIELD_GET(OP_BR_ADDR_HI, instr);
*instr &= ~(OP_BR_ADDR_HI | OP_BR_ADDR_LO);
*instr |= FIELD_PREP(OP_BR_ADDR_HI, addr_hi);
#define OP_BR_BIT_ADDR_HI OP_BR_ADDR_HI