hppa_blt
emit(hppa_blt(hi(rs1), hi(rs2), NO_JUMP(1)), ctx);
emit(hppa_blt(hi(rs1), hi(rs2), JUMP(2)), ctx);
emit(hppa_blt(hi(rs1), hi(rs2), NO_JUMP(1)), ctx);
emit(hppa_blt(hi(rs1), hi(rs2), JUMP(2)), ctx);
emit(hppa_blt(rd, rs, off), ctx);
emit(hppa_blt(rd, rs, off), ctx);