/*** * This code is a part of EvoApproxLib library (ehw.fit.vutbr.cz/approxlib) distributed under The MIT License. * When used, please cite the following article(s): V. Mrazek, S. S. Sarwar, L. Sekanina, Z. Vasicek and K. Roy, "Design of power-efficient approximate multipliers for approximate artificial neural networks," 2016 IEEE/ACM International Conference on Computer-Aided Design (ICCAD), Austin, TX, 2016, pp. 1-7. doi: 10.1145/2966986.2967021 * This file contains a circuit from a sub-set of pareto optimal circuits with respect to the pwr and mae parameters ***/ // MAE% = 0.24 % // MAE = 40 // WCE% = 0.99 % // WCE = 162 // WCRE% = 3100.00 % // EP% = 95.40 % // MRE% = 5.32 % // MSE = 2487 // PDK45_PWR = 0.161 mW // PDK45_AREA = 351.5 um2 // PDK45_DELAY = 1.30 ns #include #include uint64_t mul7u_06Q(uint64_t a, uint64_t b) { int wa[7]; int wb[7]; uint64_t y = 0; wa[0] = (a >> 0) & 0x01; wb[0] = (b >> 0) & 0x01; wa[1] = (a >> 1) & 0x01; wb[1] = (b >> 1) & 0x01; wa[2] = (a >> 2) & 0x01; wb[2] = (b >> 2) & 0x01; wa[3] = (a >> 3) & 0x01; wb[3] = (b >> 3) & 0x01; wa[4] = (a >> 4) & 0x01; wb[4] = (b >> 4) & 0x01; wa[5] = (a >> 5) & 0x01; wb[5] = (b >> 5) & 0x01; wa[6] = (a >> 6) & 0x01; wb[6] = (b >> 6) & 0x01; int sig_27 = wa[6] & wb[1]; int sig_54 = wb[1] & wa[5]; int sig_55 = sig_54 ^ sig_27; int sig_56 = sig_54 & wa[6]; int sig_62 = wa[5] & wb[2]; int sig_63 = wa[6] & wb[2]; int sig_82 = wa[4] & wb[2]; int sig_83 = wb[5] & wa[1]; int sig_85 = sig_82 | sig_83; int sig_86 = sig_55 ^ sig_62; int sig_87 = sig_55 & sig_62; int sig_88 = sig_86 & sig_85; int sig_89 = sig_86 ^ sig_85; int sig_90 = sig_87 ^ sig_88; int sig_91 = sig_56 ^ sig_63; int sig_92 = sig_56 & wb[2]; int sig_93 = sig_91 & sig_90; int sig_94 = sig_91 ^ sig_90; int sig_95 = sig_92 | sig_93; int sig_100 = wa[4] & wb[3]; int sig_101 = wa[5] & wb[3]; int sig_102 = wa[6] & wb[3]; int sig_114 = wb[3] & wa[2]; int sig_115 = ~(wa[3] & wb[3]); int sig_116 = wb[3] & wa[3]; int sig_117 = wb[4] & sig_114; int sig_118 = ~(sig_115 & wb[3]); int sig_119 = sig_116 | sig_117; int sig_120 = sig_89 ^ sig_100; int sig_121 = sig_89 & sig_100; int sig_122 = sig_120 & sig_119; int sig_123 = sig_120 ^ sig_119; int sig_124 = sig_121 ^ sig_122; int sig_125 = sig_94 ^ sig_101; int sig_126 = sig_94 & sig_101; int sig_127 = sig_125 & sig_124; int sig_128 = sig_125 ^ sig_124; int sig_129 = sig_126 | sig_127; int sig_130 = sig_95 ^ sig_102; int sig_131 = sig_95 & wb[3]; int sig_132 = wa[6] & sig_129; int sig_133 = sig_130 ^ sig_129; int sig_134 = sig_131 | sig_132; int sig_135 = wa[0] & wb[0]; int sig_138 = wa[3] & wb[4]; int sig_139 = wa[4] & wb[4]; int sig_140 = wa[5] & wb[4]; int sig_141 = wa[6] & wb[4]; int sig_150 = sig_118 & wa[2]; int sig_153 = sig_150 & wb[4]; int sig_154 = sig_123 ^ sig_138; int sig_155 = sig_123 & sig_138; int sig_156 = sig_154 & sig_153; int sig_157 = sig_154 ^ sig_153; int sig_158 = sig_155 ^ sig_156; int sig_159 = sig_128 ^ sig_139; int sig_160 = sig_128 & sig_139; int sig_161 = sig_159 & sig_158; int sig_162 = sig_159 ^ sig_158; int sig_163 = sig_160 | sig_161; int sig_164 = sig_133 ^ sig_140; int sig_165 = sig_133 & sig_140; int sig_166 = sig_164 & sig_163; int sig_167 = sig_164 ^ sig_163; int sig_168 = sig_165 ^ sig_166; int sig_169 = sig_134 ^ sig_141; int sig_170 = sig_134 & wb[4]; int sig_171 = wa[6] & sig_168; int sig_172 = sig_169 ^ sig_168; int sig_173 = sig_170 | sig_171; int sig_176 = wa[2] & wb[5]; int sig_177 = wa[3] & wb[5]; int sig_178 = wa[4] & wb[5]; int sig_179 = wa[5] & wb[5]; int sig_180 = wa[6] & wb[5]; int sig_186 = wa[6] & wb[0]; int sig_188 = sig_157 ^ sig_176; int sig_189 = sig_157 & wa[2]; int sig_191 = sig_188; int sig_192 = sig_189 & wb[5]; int sig_193 = sig_162 ^ sig_177; int sig_194 = sig_162 & sig_177; int sig_195 = sig_193 & sig_192; int sig_196 = sig_193 ^ sig_192; int sig_197 = sig_194 | sig_195; int sig_198 = sig_167 ^ sig_178; int sig_199 = sig_167 & sig_178; int sig_200 = sig_198 & sig_197; int sig_201 = sig_198 ^ sig_197; int sig_202 = sig_199 | sig_200; int sig_203 = sig_172 ^ sig_179; int sig_204 = sig_172 & sig_179; int sig_205 = sig_203 & sig_202; int sig_206 = sig_203 ^ sig_202; int sig_207 = sig_204 ^ sig_205; int sig_208 = sig_173 ^ sig_180; int sig_209 = sig_173 & wb[5]; int sig_210 = wa[6] & sig_207; int sig_211 = sig_208 ^ sig_207; int sig_212 = sig_209 | sig_210; int sig_213 = wa[0] & wb[6]; int sig_214 = wa[1] & wb[6]; int sig_215 = wa[2] & wb[6]; int sig_216 = wa[3] & wb[6]; int sig_217 = wa[4] & wb[6]; int sig_218 = wa[5] & wb[6]; int sig_219 = wa[6] & wb[6]; int sig_220 = sig_186 ^ sig_213; int sig_221 = sig_186 & sig_213; int sig_222 = sig_191 ^ sig_214; int sig_223 = sig_191 & sig_214; int sig_224 = sig_222 & sig_221; int sig_225 = sig_222 ^ sig_221; int sig_226 = sig_223 | sig_224; int sig_227 = sig_196 ^ sig_215; int sig_228 = sig_196 & sig_215; int sig_229 = sig_227 & sig_226; int sig_230 = sig_227 ^ sig_226; int sig_231 = sig_228 ^ sig_229; int sig_232 = sig_201 ^ sig_216; int sig_233 = sig_201 & sig_216; int sig_234 = sig_232 & sig_231; int sig_235 = sig_232 ^ sig_231; int sig_236 = sig_233 | sig_234; int sig_237 = sig_206 ^ sig_217; int sig_238 = sig_206 & sig_217; int sig_239 = sig_237 & sig_236; int sig_240 = sig_237 ^ sig_236; int sig_241 = sig_238 | sig_239; int sig_242 = sig_211 ^ sig_218; int sig_243 = sig_211 & sig_218; int sig_244 = sig_242 & sig_241; int sig_245 = sig_242 ^ sig_241; int sig_246 = sig_243 ^ sig_244; int sig_247 = sig_212 ^ sig_219; int sig_248 = sig_212 & wb[6]; int sig_249 = wa[6] & sig_246; int sig_250 = sig_247 ^ sig_246; int sig_251 = sig_248 | sig_249; y |= (sig_155 & 0x01) << 0; // default output y |= (sig_221 & 0x01) << 1; // default output y |= (sig_195 & 0x01) << 2; // default output y |= (sig_176 & 0x01) << 3; // default output y |= (sig_139 & 0x01) << 4; // default output y |= (sig_135 & 0x01) << 5; // default output y |= (sig_220 & 0x01) << 6; // default output y |= (sig_225 & 0x01) << 7; // default output y |= (sig_230 & 0x01) << 8; // default output y |= (sig_235 & 0x01) << 9; // default output y |= (sig_240 & 0x01) << 10; // default output y |= (sig_245 & 0x01) << 11; // default output y |= (sig_250 & 0x01) << 12; // default output y |= (sig_251 & 0x01) << 13; // default output return y; }