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132
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1 // D import file generated from 'core/BitManip.d'
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2 module tango.core.BitManip;
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3 version (DDoc)
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4 {
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5 int bsf(uint v);
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6 int bsr(uint v);
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7 int bt(uint* p, uint bitnum);
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8 int btc(uint* p, uint bitnum);
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9 int btr(uint* p, uint bitnum);
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10 int bts(uint* p, uint bitnum);
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11 uint bswap(uint v);
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12 ubyte inp(uint port_address);
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13 ushort inpw(uint port_address);
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14 uint inpl(uint port_address);
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15 ubyte outp(uint port_address, ubyte value);
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16 ushort outpw(uint port_address, ushort value);
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17 uint outpl(uint port_address, uint value);
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18 }
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19 else
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20 {
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184
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21 version (LLVMDC)
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22 {
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23 int bsf(uint v);
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24 int bsr(uint v);
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25 int bt(uint* p, uint bitnum)
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26 {
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27 return p[bitnum / ((uint).sizeof * 8)] & 1 << (bitnum & (uint).sizeof * 8 - 1) ? -1 : 0;
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28 }
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29 int btc(uint* p, uint bitnum)
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30 {
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31 uint* q = p + bitnum / ((uint).sizeof * 8);
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32 uint mask = 1 << (bitnum & (uint).sizeof * 8 - 1);
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33 int result = *q & mask;
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34 *q ^= mask;
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35 return result ? -1 : 0;
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36 }
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37 int btr(uint* p, uint bitnum)
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38 {
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39 uint* q = p + bitnum / ((uint).sizeof * 8);
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40 uint mask = 1 << (bitnum & (uint).sizeof * 8 - 1);
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41 int result = *q & mask;
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42 *q &= ~mask;
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43 return result ? -1 : 0;
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44 }
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45 int bts(uint* p, uint bitnum)
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46 {
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47 uint* q = p + bitnum / ((uint).sizeof * 8);
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48 uint mask = 1 << (bitnum & (uint).sizeof * 8 - 1);
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49 int result = *q & mask;
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50 *q |= mask;
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51 return result ? -1 : 0;
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52 }
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53 pragma(LLVM_internal, "intrinsic", "llvm.bswap.i32")
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54 {
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55 uint bswap(uint val);
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56 }
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57 ubyte inp(uint p)
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58 {
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59 return 0;
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60 }
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61 ushort inpw(uint p)
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62 {
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63 return 0;
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64 }
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65 uint inpl(uint p)
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66 {
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67 return 0;
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68 }
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69 ubyte outp(uint p, ubyte v)
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70 {
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71 return v;
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72 }
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73 ushort outpw(uint p, ushort v)
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74 {
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75 return v;
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76 }
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77 uint outpl(uint p, uint v)
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78 {
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79 return v;
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80 }
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81 }
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82 else
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83 {
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132
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84 public
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85 {
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86 import std.intrinsic;
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87 }
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88 }
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184
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89 }
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132
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90 int popcnt(uint x)
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91 {
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92 x = x - (x >> 1 & 1431655765);
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93 x = ((x & -858993460u) >> 2) + (x & 858993459);
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94 x += x >> 4;
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95 x &= 252645135;
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96 x += x >> 8;
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97 x &= 16711935;
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98 x += x >> 16;
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99 x &= 65535;
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100 return x;
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101 }
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102 debug (UnitTest)
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103 {
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104 }
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105 uint bitswap(uint x);
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106 debug (UnitTest)
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107 {
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108 }
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