SIGNEX
val = SIGNEX(insn, 13);
val = SIGNEX(insn, 11);
val = SIGNEX(val, 16);
db_printsym((vaddr_t)(loc + (4 * SIGNEX(insn, 22))),
db_printsym((vaddr_t)(loc + (4 * SIGNEX(insn, 19))),
db_printsym((vaddr_t)(loc + (4 * SIGNEX(insn, 30))),
val = SIGNEX(insn, 13);