1 | #ifdef VHDL |
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2 | /* |
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3 | * $Id$ |
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4 | * |
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5 | * [ Description ] |
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6 | * |
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7 | */ |
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8 | |
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9 | #include "Behavioural/Generic/Shifter/include/Shifter.h" |
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10 | |
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11 | namespace morpheo { |
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12 | namespace behavioural { |
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13 | namespace generic { |
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14 | namespace shifter { |
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15 | |
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16 | |
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17 | void Shifter::vhdl_body (Vhdl * & vhdl) |
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18 | { |
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19 | //uint32_t log2_size_data = static_cast<uint32_t>(ceil(log2(_param._size_data))); |
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20 | |
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21 | vhdl->set_body ("-- Compute all case of shift"); |
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22 | |
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23 | for (uint32_t i=0; i<_param._nb_port; i++) |
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24 | { |
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25 | //-----[ Shift logic Left ]-------------------------------------------- |
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26 | if (_param._have_shift_logic_left) |
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27 | vhdl->set_body ("shift_logic_left_"+toString(i)+" <= TO_STDLOGICVECTOR(TO_BITVECTOR(in_SHIFTER_"+toString(i)+"_DATA) sll CONV_INTEGER(shift_"+toString(i)+"));"); |
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28 | //-----[ Shift logic Right ]------------------------------------------- |
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29 | if (_param._have_shift_logic_right) |
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30 | vhdl->set_body ("shift_logic_right_"+toString(i)+" <= TO_STDLOGICVECTOR(TO_BITVECTOR(in_SHIFTER_"+toString(i)+"_DATA) srl CONV_INTEGER(shift_"+toString(i)+"));"); |
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31 | //-----[ Shift arithmetic Left ]--------------------------------------- |
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32 | if (_param._have_shift_arithmetic_left) |
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33 | vhdl->set_body ("shift_arithmetic_left_"+toString(i)+" <= TO_STDLOGICVECTOR(TO_BITVECTOR(in_SHIFTER_"+toString(i)+"_DATA) sla CONV_INTEGER(shift_"+toString(i)+"));"); |
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34 | //-----[ Shift arithmetic Right ]-------------------------------------- |
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35 | if (_param._have_shift_arithmetic_right) |
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36 | vhdl->set_body ("shift_arithmetic_right_"+toString(i)+" <= TO_STDLOGICVECTOR(TO_BITVECTOR(in_SHIFTER_"+toString(i)+"_DATA) sra CONV_INTEGER(shift_"+toString(i)+"));"); |
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37 | //-----[ Rotate Left ]------------------------------------------------- |
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38 | if (_param._have_rotate_left) |
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39 | vhdl->set_body ("rotate_left_"+toString(i)+" <= TO_STDLOGICVECTOR(TO_BITVECTOR(in_SHIFTER_"+toString(i)+"_DATA) rol CONV_INTEGER(shift_"+toString(i)+"));"); |
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40 | //-----[ Rotate Right ]------------------------------------------------ |
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41 | if (_param._have_rotate_right) |
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42 | vhdl->set_body ("rotate_right_"+toString(i)+" <= TO_STDLOGICVECTOR(TO_BITVECTOR(in_SHIFTER_"+toString(i)+"_DATA) ror CONV_INTEGER(shift_"+toString(i)+"));"); |
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43 | } |
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44 | |
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45 | if (_param._size_data_completion > 0) |
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46 | { |
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47 | vhdl->set_body (""); |
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48 | vhdl->set_body ("-- Mask"); |
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49 | |
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50 | for (uint32_t i=0; i<_param._nb_port; i++) |
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51 | { |
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52 | string print_shifter_completion; |
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53 | |
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54 | if (_param._type_completion_bool == true) |
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55 | print_shifter_completion = "in_SHIFTER_"+toString(i)+"_CARRY_IN"; |
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56 | else |
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57 | print_shifter_completion = "in_SHIFTER_"+toString(i)+"_COMPLETION"; |
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58 | |
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59 | if (_param._size_data == _param._size_data_completion) |
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60 | { |
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61 | vhdl->set_body ("shifter_completion_left_"+toString(i)+" <= "+print_shifter_completion+";"); |
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62 | vhdl->set_body ("shifter_completion_right_"+toString(i)+" <= "+print_shifter_completion+";"); |
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63 | } |
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64 | else |
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65 | { |
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66 | vhdl->set_body ("shifter_completion_left_"+toString(i)+std_logic_range(_param._size_data-1,_param._size_data_completion)+" <= "+std_logic_others(_param._size_data-_param._size_data_completion,0)+";"); |
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67 | vhdl->set_body ("shifter_completion_left_"+toString(i)+std_logic_range(_param._size_data_completion )+" <= "+print_shifter_completion+";"); |
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68 | |
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69 | vhdl->set_body ("shifter_completion_right_"+toString(i)+std_logic_range(_param._size_data-1,_param._size_data-_param._size_data_completion)+" <= "+print_shifter_completion+";"); |
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70 | vhdl->set_body ("shifter_completion_right_"+toString(i)+std_logic_range(_param._size_data-_param._size_data_completion )+" <= "+std_logic_others(_param._size_data-_param._size_data_completion,0)+";"); |
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71 | } |
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72 | |
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73 | vhdl->set_body ("mask_completion_left_"+toString(i)+" <= TO_STDLOGICVECTOR(TO_BITVECTOR(cst_completion) sll CONV_INTEGER(shift_"+toString(i)+"));"); |
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74 | vhdl->set_body ("mask_completion_right_"+toString(i)+" <= TO_STDLOGICVECTOR(TO_BITVECTOR(cst_completion) srl CONV_INTEGER(shift_"+toString(i)+"));"); |
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75 | } |
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76 | } |
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77 | |
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78 | |
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79 | vhdl->set_body (""); |
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80 | vhdl->set_body ("-- Multiplexor"); |
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81 | |
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82 | for (uint32_t i=0; i<_param._nb_port; i++) |
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83 | { |
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84 | vhdl->set_body ("out_SHIFTER_"+toString(i)+"_DATA <="); |
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85 | string print_else = " "; |
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86 | |
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87 | //-----[ Shift arithmetic Left ]--------------------------------------- |
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88 | if (_param._have_shift_arithmetic_left) |
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89 | { |
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90 | bool have_when = false; |
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91 | string print_when = ""; |
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92 | string print_and = ""; |
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93 | |
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94 | if (_param._direction == external_direction) |
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95 | { |
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96 | have_when = true; |
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97 | print_when += " in_SHIFTER_"+toString(i)+"_DIRECTION = cst_is_direction_left "; |
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98 | print_and = " and "; |
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99 | } |
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100 | if (_param._rotate == external_rotate) |
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101 | { |
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102 | have_when = true; |
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103 | print_when += print_and+" in_SHIFTER_"+toString(i)+"_TYPE = cst_is_type_shift "; |
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104 | print_and = " and "; |
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105 | } |
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106 | if (_param._carry == external_carry) |
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107 | { |
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108 | have_when = true; |
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109 | print_when += print_and+" in_SHIFTER_"+toString(i)+"_CARRY = cst_is_carry_arithmetic"; |
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110 | } |
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111 | |
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112 | if (have_when) |
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113 | print_when = "when " + print_when; |
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114 | |
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115 | vhdl->set_body ("\t"+print_else+" shift_arithmetic_left_"+toString(i)+" "+print_when); |
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116 | print_else = "else"; |
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117 | } |
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118 | //-----[ Shift arithmetic Right ]-------------------------------------- |
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119 | if (_param._have_shift_arithmetic_right) |
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120 | { |
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121 | bool have_when = false; |
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122 | string print_when = ""; |
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123 | string print_and = ""; |
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124 | |
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125 | if (_param._direction == external_direction) |
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126 | { |
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127 | have_when = true; |
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128 | print_when += " in_SHIFTER_"+toString(i)+"_DIRECTION = cst_is_direction_right"; |
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129 | print_and = " and "; |
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130 | } |
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131 | if (_param._rotate == external_rotate) |
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132 | { |
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133 | have_when = true; |
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134 | print_when += print_and+" in_SHIFTER_"+toString(i)+"_TYPE = cst_is_type_shift "; |
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135 | print_and = " and "; |
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136 | } |
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137 | if (_param._carry == external_carry) |
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138 | { |
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139 | have_when = true; |
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140 | print_when += print_and+" in_SHIFTER_"+toString(i)+"_CARRY = cst_is_carry_arithmetic"; |
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141 | } |
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142 | |
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143 | if (have_when) |
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144 | print_when = "when " + print_when; |
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145 | |
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146 | vhdl->set_body ("\t"+print_else+" shift_arithmetic_right_"+toString(i)+" "+print_when); |
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147 | print_else = "else"; |
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148 | } |
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149 | //-----[ Shift logic Left ]-------------------------------------------- |
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150 | if (_param._have_shift_logic_left) |
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151 | { |
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152 | bool have_when = false; |
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153 | string print_when = ""; |
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154 | string print_and = ""; |
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155 | |
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156 | if (_param._direction == external_direction) |
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157 | { |
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158 | have_when = true; |
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159 | print_when += " in_SHIFTER_"+toString(i)+"_DIRECTION = cst_is_direction_left "; |
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160 | print_and = " and "; |
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161 | } |
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162 | if (_param._rotate == external_rotate) |
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163 | { |
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164 | have_when = true; |
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165 | print_when += print_and+" in_SHIFTER_"+toString(i)+"_TYPE = cst_is_type_shift "; |
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166 | print_and = " and "; |
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167 | } |
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168 | if (_param._carry == external_carry) |
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169 | { |
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170 | have_when = true; |
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171 | print_when += print_and+" in_SHIFTER_"+toString(i)+"_CARRY = cst_is_carry_logic "; |
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172 | } |
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173 | |
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174 | if (have_when) |
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175 | print_when = "when " + print_when; |
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176 | |
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177 | string print_expr_completion; |
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178 | |
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179 | if (_param._size_data_completion == 0) |
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180 | print_expr_completion = "shift_logic_left_"+toString(i)+" "; |
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181 | else |
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182 | print_expr_completion = "(shift_logic_left_"+toString(i)+" and mask_completion_left_"+toString(i)+" ) or ( shifter_completion_left_"+toString(i)+" and not mask_completion_left_"+toString(i)+" )"; |
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183 | |
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184 | vhdl->set_body ("\t"+print_else+" "+print_expr_completion+" "+print_when); |
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185 | print_else = "else"; |
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186 | } |
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187 | //-----[ Shift logic Right ]------------------------------------------- |
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188 | if (_param._have_shift_logic_right) |
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189 | { |
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190 | bool have_when = false; |
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191 | string print_when = ""; |
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192 | string print_and = ""; |
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193 | |
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194 | if (_param._direction == external_direction) |
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195 | { |
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196 | have_when = true; |
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197 | print_when += " in_SHIFTER_"+toString(i)+"_DIRECTION = cst_is_direction_right"; |
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198 | print_and = " and "; |
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199 | } |
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200 | if (_param._rotate == external_rotate) |
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201 | { |
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202 | have_when = true; |
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203 | print_when += print_and+" in_SHIFTER_"+toString(i)+"_TYPE = cst_is_type_shift "; |
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204 | print_and = " and "; |
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205 | } |
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206 | if (_param._carry == external_carry) |
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207 | { |
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208 | have_when = true; |
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209 | print_when += print_and+" in_SHIFTER_"+toString(i)+"_CARRY = cst_is_carry_logic "; |
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210 | } |
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211 | |
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212 | if (have_when) |
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213 | print_when = "when " + print_when; |
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214 | |
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215 | string print_expr_completion; |
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216 | |
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217 | if (_param._size_data_completion == 0) |
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218 | print_expr_completion = "shift_logic_right_"+toString(i); |
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219 | else |
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220 | print_expr_completion = "(shift_logic_right_"+toString(i)+" and mask_completion_right_"+toString(i)+") or ( shifter_completion_right_"+toString(i)+" and not mask_completion_right_"+toString(i)+")"; |
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221 | |
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222 | vhdl->set_body ("\t"+print_else+" "+print_expr_completion+" "+print_when); |
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223 | print_else = "else"; |
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224 | } |
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225 | //-----[ Rotate Left ]------------------------------------------------- |
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226 | if (_param._have_rotate_left) |
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227 | { |
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228 | bool have_when = false; |
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229 | string print_when = ""; |
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230 | string print_and = ""; |
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231 | |
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232 | if (_param._direction == external_direction) |
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233 | { |
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234 | have_when = true; |
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235 | print_when += " in_SHIFTER_"+toString(i)+"_DIRECTION = cst_is_direction_left "; |
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236 | print_and = " and "; |
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237 | } |
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238 | if (_param._rotate == external_rotate) |
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239 | { |
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240 | have_when = true; |
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241 | print_when += print_and+" in_SHIFTER_"+toString(i)+"_TYPE = cst_is_type_rotate"; |
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242 | print_and = " and "; |
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243 | } |
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244 | |
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245 | if (have_when) |
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246 | print_when = "when " + print_when; |
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247 | |
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248 | vhdl->set_body ("\t"+print_else+" rotate_left_"+toString(i)+" "+print_when); |
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249 | print_else = "else"; |
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250 | } |
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251 | //-----[ Rotate Right ]------------------------------------------------ |
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252 | if (_param._have_rotate_right) |
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253 | { |
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254 | bool have_when = false; |
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255 | string print_when = ""; |
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256 | string print_and = ""; |
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257 | |
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258 | if (_param._direction == external_direction) |
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259 | { |
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260 | have_when = true; |
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261 | print_when += " in_SHIFTER_"+toString(i)+"_DIRECTION = cst_is_direction_right"; |
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262 | print_and = " and "; |
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263 | } |
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264 | if (_param._rotate == external_rotate) |
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265 | { |
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266 | have_when = true; |
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267 | print_when += print_and+" in_SHIFTER_"+toString(i)+"_TYPE = cst_is_type_rotate"; |
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268 | print_and = " and "; |
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269 | } |
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270 | |
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271 | if (have_when) |
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272 | print_when = "when " + print_when; |
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273 | |
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274 | vhdl->set_body ("\t"+print_else+" rotate_right_"+toString(i)+" "+print_when); |
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275 | print_else = "else"; |
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276 | } |
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277 | vhdl->set_body (";"); |
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278 | } |
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279 | |
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280 | }; |
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281 | /* |
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282 | //-----[ Shift logic Left ]-------------------------------------------- |
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283 | if (_param._have_shift_logic_left) |
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284 | { |
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285 | |
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286 | } |
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287 | |
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288 | //-----[ Shift logic Right ]------------------------------------------- |
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289 | if (_param._have_shift_logic_right) |
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290 | { |
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291 | |
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292 | } |
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293 | |
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294 | //-----[ Shift arithmetic Left ]--------------------------------------- |
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295 | if (_param._have_shift_arithmetic_left) |
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296 | { |
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297 | |
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298 | } |
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299 | |
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300 | //-----[ Shift arithmetic Right ]-------------------------------------- |
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301 | if (_param._have_shift_arithmetic_right) |
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302 | { |
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303 | |
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304 | } |
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305 | |
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306 | //-----[ Rotate Left ]------------------------------------------------- |
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307 | if (_param._have_rotate_left) |
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308 | { |
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309 | |
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310 | } |
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311 | |
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312 | //-----[ Rotate Right ]------------------------------------------------ |
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313 | if (_param._have_rotate_right) |
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314 | { |
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315 | |
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316 | } |
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317 | */ |
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318 | }; // end namespace shifter |
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319 | }; // end namespace generic |
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320 | }; // end namespace behavioural |
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321 | }; // end namespace morpheo |
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322 | #endif |
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