cosrom256_w2.vhd

8-1024可变点数FFT/IFFT变换,VHDL语言设计, 仿真通过,可以很容易综合.

        ROMWORD'("00010101111000100001001111110010"),--address=114
        ROMWORD'("00010100010101010111011001011101"),--address=115
        ROMWORD'("00010010110010000001000000011010"),--address=116
        ROMWORD'("00010001001110011111000001111001"),--address=117
        ROMWORD'("00001111101010110010011011010101"),--address=118
        ROMWORD'("00001110000110111100001010001100"),--address=119
        ROMWORD'("00001100100010111101001100000110"),--address=120
        ROMWORD'("00001010111110110110011110101100"),--address=121
        ROMWORD'("00001001011010101000111111110000"),--address=122
        ROMWORD'("00000111110110010101101101000100"),--address=123
        ROMWORD'("00000110010001111101100100100001"),--address=124
        ROMWORD'("00000100101101100001100100000001"),--address=125
        ROMWORD'("00000011001001000010101001100010"),--address=126
        ROMWORD'("00000001100100100001110011000010"),--address=127
        ROMWORD'("11111111111111111111111110100011"),--address=128
        ROMWORD'("11111110011011011110001010000010"),--address=129
        ROMWORD'("11111100110110111101010011100010"),--address=130
        ROMWORD'("11111011010010011110011001000011"),--address=131
        ROMWORD'("11111001101110000010011000100100"),--address=132
        ROMWORD'("11111000001001101010010000000001"),--address=133
        ROMWORD'("11110110100101010110111101010101"),--address=134
        ROMWORD'("11110101000001001001011110011001"),--address=135
        ROMWORD'("11110011011101000010110000111111"),--address=136
        ROMWORD'("11110001111001000011110010111001"),--address=137
        ROMWORD'("11110000010101001101100001110001"),--address=138
        ROMWORD'("11101110110001100000111011001101"),--address=139
        ROMWORD'("11101101001101111110111100101101"),--address=140
        ROMWORD'("11101011101010101000100011101001"),--address=141
        ROMWORD'("11101010000111011110101101010110"),--address=142
        ROMWORD'("11101000100100100010010110111011"),--address=143
        ROMWORD'("11100111000001110100011101011101"),--address=144
        ROMWORD'("11100101011111010101111101110011"),--address=145
        ROMWORD'("11100011111101000111110100101110"),--address=146
        ROMWORD'("11100010011011001010111110110011"),--address=147
        ROMWORD'("11100000111001100000011000011100"),--address=148
        ROMWORD'("11011111011000001000111101111011"),--address=149
        ROMWORD'("11011101110111000101101011010001"),--address=150
        ROMWORD'("11011100010110010111011100011000"),--address=151
        ROMWORD'("11011010110101111111001100111000"),--address=152
        ROMWORD'("11011001010101111101111000010000"),--address=153
        ROMWORD'("11010111110110010100011001101101"),--address=154
        ROMWORD'("11010110010111000011101100010000"),--address=155
        ROMWORD'("11010100111000001100101010101010"),--address=156
        ROMWORD'("11010011011001110000001111011010"),--address=157
        ROMWORD'("11010001111011101111010100110011"),--address=158
        ROMWORD'("11010000011110001010110100110010"),--address=159
        ROMWORD'("11001111000001000011101001000111"),--address=160
        ROMWORD'("11001101100100011010101011001101"),--address=161
        ROMWORD'("11001100001000010000110100001101"),--address=162
        ROMWORD'("11001010101100100110111100111101"),--address=163
        ROMWORD'("11001001010001011101111110000000"),--address=164
        ROMWORD'("11000111110110110110101111100100"),--address=165
        ROMWORD'("11000110011100110010001001100010"),--address=166
        ROMWORD'("11000101000011010001000011011101"),--address=167
        ROMWORD'("11000011101010010100010100100100"),--address=168
        ROMWORD'("11000010010001111100110011101111"),--address=169
        ROMWORD'("11000000111010001011010111011101"),--address=170
        ROMWORD'("10111111100011000000110101110111"),--address=171
        ROMWORD'("10111110001100011110000100110000"),--address=172
        ROMWORD'("10111100110110100011111001100000"),--address=173
        ROMWORD'("10111011100001010011001001000101"),--address=174
        ROMWORD'("10111010001100101100101000000110"),--address=175
        ROMWORD'("10111000111000110001001010101111"),--address=176
        ROMWORD'("10110111100101100001100100110001"),--address=177
        ROMWORD'("10110110010010111110101001100011"),--address=178
        ROMWORD'("10110101000001001001001011111111"),--address=179
        ROMWORD'("10110011110000000001111110100100"),--address=180
        ROMWORD'("10110010011111101001110011010011"),--address=181
        ROMWORD'("10110001010000000001011011110011"),--address=182
        ROMWORD'("10110000000001001001101001001011"),--address=183
        ROMWORD'("10101110110011000011001100000101"),--address=184
        ROMWORD'("10101101100101101110110100101011"),--address=185
        ROMWORD'("10101100011001001101010010101010"),--address=186
        ROMWORD'("10101011001101011111010101010000"),--address=187
        ROMWORD'("10101010000010100101101011001001"),--address=188
        ROMWORD'("10101000111000100001000010100010"),--address=189
        ROMWORD'("10100111101111010010001001001000"),--address=190
        ROMWORD'("10100110100110111001101100000101"),--address=191
        ROMWORD'("10100101011111011000011000000100"),--address=192
        ROMWORD'("10100100011000101110111001001011"),--address=193
        ROMWORD'("10100011010010111101111010111111"),--address=194
        ROMWORD'("10100010001110000110001000100100"),--address=195
        ROMWORD'("10100001001010001000001100010111"),--address=196
        ROMWORD'("10100000000111000100110000010100"),--address=197
        ROMWORD'("10011111000100111100011101110010"),--address=198
        ROMWORD'("10011110000011101111111101100100"),--address=199
        ROMWORD'("10011101000011011111110111111000"),--address=200
        ROMWORD'("10011100000100001100110100010101"),--address=201
        ROMWORD'("10011011000101110111011010000000"),--address=202
        ROMWORD'("10011010001000100000001111010100"),--address=203
        ROMWORD'("10011001001100000111111010001000"),--address=204
        ROMWORD'("10011000010000101110111111101101"),--address=205
        ROMWORD'("10010111010110010110000100101001"),--address=206
        ROMWORD'("10010110011100111101101100111111"),--address=207
        ROMWORD'("10010101100100100110011100001000"),--address=208
        ROMWORD'("10010100101101010000110100110101"),--address=209
        ROMWORD'("10010011110110111101011001001111"),--address=210
        ROMWORD'("10010011000001101100101010110100"),--address=211
        ROMWORD'("10010010001101011111001010011101"),--address=212
        ROMWORD'("10010001011010010101011000010110"),--address=213
        ROMWORD'("10010000101000001111110100000010"),--address=214
        ROMWORD'("10001111110111001110111100011100"),--address=215
        ROMWORD'("10001111000111010011001111110001"),--address=216
        ROMWORD'("10001110011000011101001011100110"),--address=217
        ROMWORD'("10001101101010101101001100110101"),--address=218
        ROMWORD'("10001100111110000011101111101011"),--address=219
        ROMWORD'("10001100010010100001001111101011"),--address=220
        ROMWORD'("10001011101000000110000111101101"),--address=221
        ROMWORD'("10001010111110110010110001111010"),--address=222
        ROMWORD'("10001010010110100111100111110010"),--address=223
        ROMWORD'("10001001101111100101000010000110"),--address=224
        ROMWORD'("10001001001001101011011000111011"),--address=225
        ROMWORD'("10001000100100111011000011101011"),--address=226
        ROMWORD'("10001000000001010100011000111111"),--address=227
        ROMWORD'("10000111011110110111101110110101"),--address=228
        ROMWORD'("10000110111101100101011010011110"),--address=229
        ROMWORD'("10000110011101011101110000011011"),--address=230
        ROMWORD'("10000101111110100001000100100001"),--address=231
        ROMWORD'("10000101100000101111101001110101"),--address=232
        ROMWORD'("10000101000100001001110010101110"),--address=233
        ROMWORD'("10000100101000101111110000110110"),--address=234
        ROMWORD'("10000100001110100001110101000110"),--address=235
        ROMWORD'("10000011110101100000001111101001"),--address=236
        ROMWORD'("10000011011101101011001111111011"),--address=237
        ROMWORD'("10000011000111000011000100101010"),--address=238
        ROMWORD'("10000010110001100111111011110001"),--address=239
        ROMWORD'("10000010011101011010000010011111"),--address=240
        ROMWORD'("10000010001010011001100101010011"),--address=241
        ROMWORD'("10000001111000100110101111111001"),--address=242
        ROMWORD'("10000001101000000001101101010010"),--address=243
        ROMWORD'("10000001011000101010100111101011"),--address=244
        ROMWORD'("10000001001010100001101000100011"),--address=245
        ROMWORD'("10000000111101100110111000101000"),--address=246
        ROMWORD'("10000000110001111010011111111000"),--address=247
        ROMWORD'("10000000100111011100100101100000"),--address=248
        ROMWORD'("10000000011110001101001111111111"),--address=249
        ROMWORD'("10000000010110001100100101000000"),--address=250
        ROMWORD'("10000000001111011010101001100000"),--address=251
        ROMWORD'("10000000001001110111100001101011"),--address=252
        ROMWORD'("10000000000101100011010000111011"),--address=253
        ROMWORD'("10000000000010011101111001111011"),--address=254
        ROMWORD'("10000000000000100111011110100101")--address=255
    );
    
begin

    cos_w2 <= ROM(CONV_INTEGER(addr));

end behavior;