1 /* Bra.c -- Converters for RISC code
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2 2010-04-16 : Igor Pavlov : Public domain */
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6 SizeT ARM_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
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13 for (i = 0; i <= size; i += 4)
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15 if (data[i + 3] == 0xEB)
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18 UInt32 src = ((UInt32)data[i + 2] << 16) | ((UInt32)data[i + 1] << 8) | (data[i + 0]);
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21 dest = ip + (UInt32)i + src;
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23 dest = src - (ip + (UInt32)i);
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25 data[i + 2] = (Byte)(dest >> 16);
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26 data[i + 1] = (Byte)(dest >> 8);
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27 data[i + 0] = (Byte)dest;
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33 SizeT ARMT_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
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40 for (i = 0; i <= size; i += 2)
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42 if ((data[i + 1] & 0xF8) == 0xF0 &&
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43 (data[i + 3] & 0xF8) == 0xF8)
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47 (((UInt32)data[i + 1] & 0x7) << 19) |
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48 ((UInt32)data[i + 0] << 11) |
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49 (((UInt32)data[i + 3] & 0x7) << 8) |
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54 dest = ip + (UInt32)i + src;
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56 dest = src - (ip + (UInt32)i);
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59 data[i + 1] = (Byte)(0xF0 | ((dest >> 19) & 0x7));
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60 data[i + 0] = (Byte)(dest >> 11);
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61 data[i + 3] = (Byte)(0xF8 | ((dest >> 8) & 0x7));
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62 data[i + 2] = (Byte)dest;
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69 SizeT PPC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
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75 for (i = 0; i <= size; i += 4)
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77 if ((data[i] >> 2) == 0x12 && (data[i + 3] & 3) == 1)
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79 UInt32 src = ((UInt32)(data[i + 0] & 3) << 24) |
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80 ((UInt32)data[i + 1] << 16) |
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81 ((UInt32)data[i + 2] << 8) |
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82 ((UInt32)data[i + 3] & (~3));
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86 dest = ip + (UInt32)i + src;
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88 dest = src - (ip + (UInt32)i);
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89 data[i + 0] = (Byte)(0x48 | ((dest >> 24) & 0x3));
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90 data[i + 1] = (Byte)(dest >> 16);
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91 data[i + 2] = (Byte)(dest >> 8);
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93 data[i + 3] |= dest;
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99 SizeT SPARC_Convert(Byte *data, SizeT size, UInt32 ip, int encoding)
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105 for (i = 0; i <= size; i += 4)
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107 if ((data[i] == 0x40 && (data[i + 1] & 0xC0) == 0x00) ||
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108 (data[i] == 0x7F && (data[i + 1] & 0xC0) == 0xC0))
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111 ((UInt32)data[i + 0] << 24) |
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112 ((UInt32)data[i + 1] << 16) |
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113 ((UInt32)data[i + 2] << 8) |
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114 ((UInt32)data[i + 3]);
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119 dest = ip + i + src;
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121 dest = src - (ip + i);
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124 dest = (((0 - ((dest >> 22) & 1)) << 22) & 0x3FFFFFFF) | (dest & 0x3FFFFF) | 0x40000000;
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126 data[i + 0] = (Byte)(dest >> 24);
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127 data[i + 1] = (Byte)(dest >> 16);
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128 data[i + 2] = (Byte)(dest >> 8);
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129 data[i + 3] = (Byte)dest;
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