hppa-dis.c

来自「基于4个mips核的noc设计」· C语言 代码 · 共 1,190 行 · 第 1/3 页

					       compare_cond_names[GET_COND (insn)]);
			break;
		      case 'S':
			(*info->fprintf_func) (info->stream, "%s ",
					       compare_cond_64_names[GET_COND (insn)]);
			break;
		      case 'a':
			(*info->fprintf_func) (info->stream, "%s ",
					       add_cond_names[GET_COND (insn)]);
			break;
		      case 'A':
			(*info->fprintf_func) (info->stream, "%s ",
					       add_cond_64_names[GET_COND (insn)]);
			break;
		      case 'd':
			(*info->fprintf_func) (info->stream, "%s",
					       add_cond_names[GET_FIELD (insn, 16, 18)]);
			break;

		      case 'W':
			(*info->fprintf_func) 
			  (info->stream, "%s",
			   wide_add_cond_names[GET_FIELD (insn, 16, 18) + 
					      GET_FIELD (insn, 4, 4) * 8]);
			break;

		      case 'l':
			(*info->fprintf_func) (info->stream, "%s ",
					       logical_cond_names[GET_COND (insn)]);
			break;
		      case 'L':
			(*info->fprintf_func) (info->stream, "%s ",
					       logical_cond_64_names[GET_COND (insn)]);
			break;
		      case 'u':
			(*info->fprintf_func) (info->stream, "%s ",
					       unit_cond_names[GET_COND (insn)]);
			break;
		      case 'U':
			(*info->fprintf_func) (info->stream, "%s ",
					       unit_cond_64_names[GET_COND (insn)]);
			break;
		      case 'y':
		      case 'x':
		      case 'b':
			(*info->fprintf_func)
			  (info->stream, "%s",
			   shift_cond_names[GET_FIELD (insn, 16, 18)]);

			/* If the next character in args is 'n', it will handle
			   putting out the space.  */
			if (s[1] != 'n')
			  (*info->fprintf_func) (info->stream, " ");
			break;
		      case 'X':
			(*info->fprintf_func) (info->stream, "%s ",
					       shift_cond_64_names[GET_FIELD (insn, 16, 18)]);
			break;
		      case 'B':
			(*info->fprintf_func)
			  (info->stream, "%s",
			   bb_cond_64_names[GET_FIELD (insn, 16, 16)]);

			/* If the next character in args is 'n', it will handle
			   putting out the space.  */
			if (s[1] != 'n')
			  (*info->fprintf_func) (info->stream, " ");
			break;
		      }
		    break;
		  }

		case 'V':
		  fput_const (extract_5_store (insn), info);
		  break;
		case 'r':
		  fput_const (extract_5r_store (insn), info);
		  break;
		case 'R':
		  fput_const (extract_5R_store (insn), info);
		  break;
		case 'U':
		  fput_const (extract_10U_store (insn), info);
		  break;
		case 'B':
		case 'Q':
		  fput_const (extract_5Q_store (insn), info);
		  break;
		case 'i':
		  fput_const (extract_11 (insn), info);
		  break;
		case 'j':
		  fput_const (extract_14 (insn), info);
		  break;
		case 'k':
		  fput_const (extract_21 (insn), info);
		  break;
		case '<':
		case 'l':
		  /* 16-bit long disp., PA2.0 wide only.  */
		  fput_const (extract_16 (insn), info);
		  break;
		case 'n':
		  if (insn & 0x2)
		    (*info->fprintf_func) (info->stream, ",n ");
		  else
		    (*info->fprintf_func) (info->stream, " ");
		  break;
		case 'N':
		  if ((insn & 0x20) && s[1])
		    (*info->fprintf_func) (info->stream, ",n ");
		  else if (insn & 0x20)
		    (*info->fprintf_func) (info->stream, ",n");
		  else if (s[1])
		    (*info->fprintf_func) (info->stream, " ");
		  break;
		case 'w':
		  (*info->print_address_func) (memaddr + 8 + extract_12 (insn),
					       info);
		  break;
		case 'W':
		  /* 17 bit PC-relative branch.  */
		  (*info->print_address_func) ((memaddr + 8 
						+ extract_17 (insn)),
					       info);
		  break;
		case 'z':
		  /* 17 bit displacement.  This is an offset from a register
		     so it gets disasssembled as just a number, not any sort
		     of address.  */
		  fput_const (extract_17 (insn), info);
		  break;

		case 'Z':
		  /* addil %r1 implicit output.  */
		  (*info->fprintf_func) (info->stream, "%%r1");
		  break;

		case 'Y':
		  /* be,l %sr0,%r31 implicit output.  */
		  (*info->fprintf_func) (info->stream, "%%sr0,%%r31");
		  break;
		  
		case '@':
		  (*info->fprintf_func) (info->stream, "0");
		  break;

		case '.':
		  (*info->fprintf_func) (info->stream, "%d",
				    GET_FIELD (insn, 24, 25));
		  break;
		case '*':
		  (*info->fprintf_func) (info->stream, "%d",
				    GET_FIELD (insn, 22, 25));
		  break;
		case '!':
		  (*info->fprintf_func) (info->stream, "%%sar");
		  break;
		case 'p':
		  (*info->fprintf_func) (info->stream, "%d",
				    31 - GET_FIELD (insn, 22, 26));
		  break;
		case '~':
		  {
		    int num;
		    num = GET_FIELD (insn, 20, 20) << 5;
		    num |= GET_FIELD (insn, 22, 26);
		    (*info->fprintf_func) (info->stream, "%d", 63 - num);
		    break;
		  }
		case 'P':
		  (*info->fprintf_func) (info->stream, "%d",
				    GET_FIELD (insn, 22, 26));
		  break;
		case 'q':
		  {
		    int num;
		    num = GET_FIELD (insn, 20, 20) << 5;
		    num |= GET_FIELD (insn, 22, 26);
		    (*info->fprintf_func) (info->stream, "%d", num);
		    break;
		  }
		case 'T':
		  (*info->fprintf_func) (info->stream, "%d",
				    32 - GET_FIELD (insn, 27, 31));
		  break;
		case '%':
		  {
		    int num;
		    num = (GET_FIELD (insn, 23, 23) + 1) * 32;
		    num -= GET_FIELD (insn, 27, 31);
		    (*info->fprintf_func) (info->stream, "%d", num);
		    break;
		  }
		case '|':
		  {
		    int num;
		    num = (GET_FIELD (insn, 19, 19) + 1) * 32;
		    num -= GET_FIELD (insn, 27, 31);
		    (*info->fprintf_func) (info->stream, "%d", num);
		    break;
		  }
		case '$':
		  fput_const (GET_FIELD (insn, 20, 28), info);
		  break;
		case 'A':
		  fput_const (GET_FIELD (insn, 6, 18), info);
		  break;
		case 'D':
		  fput_const (GET_FIELD (insn, 6, 31), info);
		  break;
		case 'v':
		  (*info->fprintf_func) (info->stream, ",%d", GET_FIELD (insn, 23, 25));
		  break;
		case 'O':
		  fput_const ((GET_FIELD (insn, 6,20) << 5 |
			       GET_FIELD (insn, 27, 31)), info);
		  break;
		case 'o':
		  fput_const (GET_FIELD (insn, 6, 20), info);
		  break;
		case '2':
		  fput_const ((GET_FIELD (insn, 6, 22) << 5 |
			       GET_FIELD (insn, 27, 31)), info);
		  break;
		case '1':
		  fput_const ((GET_FIELD (insn, 11, 20) << 5 |
			       GET_FIELD (insn, 27, 31)), info);
		  break;
		case '0':
		  fput_const ((GET_FIELD (insn, 16, 20) << 5 |
			       GET_FIELD (insn, 27, 31)), info);
		  break;
		case 'u':
		  (*info->fprintf_func) (info->stream, ",%d", GET_FIELD (insn, 23, 25));
		  break;
		case 'F':
		  /* if no destination completer and not before a completer
		     for fcmp, need a space here */
		  if (s[1] == 'G' || s[1] == '?')
		    fputs_filtered (float_format_names[GET_FIELD (insn, 19, 20)],
				    info);
		  else
		    (*info->fprintf_func) (info->stream, "%s ",
					   float_format_names[GET_FIELD
							      (insn, 19, 20)]);
		  break;
		case 'G':
		  (*info->fprintf_func) (info->stream, "%s ",
				    float_format_names[GET_FIELD (insn,
								  17, 18)]);
		  break;
		case 'H':
		  if (GET_FIELD (insn, 26, 26) == 1)
		    (*info->fprintf_func) (info->stream, "%s ",
				    float_format_names[0]);
		  else
		    (*info->fprintf_func) (info->stream, "%s ",
				    float_format_names[1]);
		  break;
		case 'I':
		  /* if no destination completer and not before a completer
		     for fcmp, need a space here */
		  if (s[1] == '?')
		    fputs_filtered (float_format_names[GET_FIELD (insn, 20, 20)],
				    info);
		  else
		    (*info->fprintf_func) (info->stream, "%s ",
					   float_format_names[GET_FIELD
							      (insn, 20, 20)]);
		  break;

                case 'J':
                  fput_const (extract_14 (insn), info);
                  break;

		case '#':
		  {
		    int sign = GET_FIELD (insn, 31, 31);
		    int imm10 = GET_FIELD (insn, 18, 27);
		    int disp;

		    if (sign)
		      disp = (-1 << 10) | imm10;
		    else
		      disp = imm10;

		    disp <<= 3;
		    fput_const (disp, info);
		    break;
		  }
                case 'K':
		case 'd':
		  {
		    int sign = GET_FIELD (insn, 31, 31);
		    int imm11 = GET_FIELD (insn, 18, 28);
		    int disp;

		    if (sign)
		      disp = (-1 << 11) | imm11;
		    else
		      disp = imm11;

		    disp <<= 2;
		    fput_const (disp, info);
		    break;
		  }

		case '>':
		case 'y':
		  {
		    /* 16-bit long disp., PA2.0 wide only.  */
		    int disp = extract_16 (insn);
		    disp &= ~3;
		    fput_const (disp, info);
		    break;
		  }

		case '&':
		  {
		    /* 16-bit long disp., PA2.0 wide only.  */
		    int disp = extract_16 (insn);
		    disp &= ~7;
		    fput_const (disp, info);
		    break;
		  }

		/* ?!? FIXME */
		case '_':
		case '{':
		  fputs_filtered ("Disassembler botch.\n", info);
		  break;

		case 'm':
		  {
		    int y = GET_FIELD (insn, 16, 18);

		    if (y != 1)
		      fput_const ((y ^ 1) - 1, info);
		  }
		  break;

		case 'h':
		  {
		    int cbit;

		    cbit = GET_FIELD (insn, 16, 18);

		    if (cbit > 0)
		      (*info->fprintf_func) (info->stream, ",%d", cbit - 1);
		    break;
		  }

		case '=':
		  {
		    int cond = GET_FIELD (insn, 27, 31);

		    if (cond == 0)
		      fputs_filtered (" ", info);
		    else if (cond == 1)
		      fputs_filtered ("acc ", info);
		    else if (cond == 2)
		      fputs_filtered ("rej ", info);
		    else if (cond == 5)
		      fputs_filtered ("acc8 ", info);
		    else if (cond == 6)
		      fputs_filtered ("rej8 ", info);
		    else if (cond == 9)
		      fputs_filtered ("acc6 ", info);
		    else if (cond == 13)
		      fputs_filtered ("acc4 ", info);
		    else if (cond == 17)
		      fputs_filtered ("acc2 ", info);
		    break;
		  }

		case 'X':
		  (*info->print_address_func) ((memaddr + 8 
						+ extract_22 (insn)),
					       info);
		  break;
		case 'L':
		  fputs_filtered (",%r2", info);
		  break;
		default:
		  (*info->fprintf_func) (info->stream, "%c", *s);
		  break;
		}
	    }
	  return sizeof(insn);
	}
    }
  (*info->fprintf_func) (info->stream, "#%8x", insn);
  return sizeof(insn);
}