mul16u_89C.c

/***
* 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): PRABAKARAN B. S., MRAZEK V., VASICEK Z., SEKANINA L., SHAFIQUE M. ApproxFPGAs: Embracing ASIC-based Approximate Arithmetic Components for FPGA-Based Systems. DAC 2020. 
***/
// MAE% = 0.004 %
// MAE = 170285 
// WCE% = 0.023 %
// WCE = 982429 
// WCRE% = 300.00 %
// EP% = 99.99 %
// MRE% = 0.20 %
// MSE = 44931.821e6 
// FPGA_POWER = 2.5
// FPGA_DELAY = 14
// FPGA_LUT = 154
#include <stdint.h>
#include <stdlib.h>

uint16_t trun8_tam00b(uint8_t A, uint8_t B)
{
  uint16_t P, P_;
  uint8_t tmp, C_1_0,C_1_1,C_1_2,C_1_3,C_1_4,C_1_5,C_1_6,C_2_0,C_2_1,C_2_2,C_2_3,C_2_4,C_2_5,C_2_6,C_3_0,C_3_1,C_3_2,C_3_3,C_3_4,C_3_5,C_3_6,C_4_0,C_4_1,C_4_2,C_4_3,C_4_4,C_4_5,C_4_6,C_5_0,C_5_1,C_5_2,C_5_3,C_5_4,C_5_5,C_5_6,C_6_0,C_6_1,C_6_2,C_6_3,C_6_4,C_6_5,C_6_6,C_7_0,C_7_1,C_7_2,C_7_3,C_7_4,C_7_5,C_7_6,S_0_0,S_0_1,S_0_2,S_0_3,S_0_4,S_0_5,S_0_6,S_0_7,S_1_0,S_1_1,S_1_2,S_1_3,S_1_4,S_1_5,S_1_6,S_1_7,S_2_0,S_2_1,S_2_2,S_2_3,S_2_4,S_2_5,S_2_6,S_2_7,S_3_0,S_3_1,S_3_2,S_3_3,S_3_4,S_3_5,S_3_6,S_3_7,S_4_0,S_4_1,S_4_2,S_4_3,S_4_4,S_4_5,S_4_6,S_4_7,S_5_0,S_5_1,S_5_2,S_5_3,S_5_4,S_5_5,S_5_6,S_5_7,S_6_0,S_6_1,S_6_2,S_6_3,S_6_4,S_6_5,S_6_6,S_6_7,S_7_0,S_7_1,S_7_2,S_7_3,S_7_4,S_7_5,S_7_6,S_7_7,S_8_0,S_8_1,S_8_2,S_8_3,S_8_4,S_8_5,S_8_6,S_8_7;
  S_0_0 = (((A>>0)&1) & ((B>>0)&1));
  S_0_1 = (((A>>0)&1) & ((B>>1)&1));
  S_0_2 = (((A>>0)&1) & ((B>>2)&1));
  S_0_3 = (((A>>0)&1) & ((B>>3)&1));
  S_0_4 = (((A>>0)&1) & ((B>>4)&1));
  S_0_5 = (((A>>0)&1) & ((B>>5)&1));
  S_0_6 = (((A>>0)&1) & ((B>>6)&1));
  S_0_7 = (((A>>0)&1) & ((B>>7)&1));
  S_1_0 = S_0_1^(((A>>1)&1) & ((B>>0)&1));
  C_1_0 = S_0_1&(((A>>1)&1) & ((B>>0)&1));
  S_1_1 = S_0_2^(((A>>1)&1) & ((B>>1)&1));
  C_1_1 = S_0_2&(((A>>1)&1) & ((B>>1)&1));
  S_1_2 = S_0_3^(((A>>1)&1) & ((B>>2)&1));
  C_1_2 = S_0_3&(((A>>1)&1) & ((B>>2)&1));
  S_1_3 = S_0_4^(((A>>1)&1) & ((B>>3)&1));
  C_1_3 = S_0_4&(((A>>1)&1) & ((B>>3)&1));
  S_1_4 = S_0_5^(((A>>1)&1) & ((B>>4)&1));
  C_1_4 = S_0_5&(((A>>1)&1) & ((B>>4)&1));
  S_1_5 = S_0_6^(((A>>1)&1) & ((B>>5)&1));
  C_1_5 = S_0_6&(((A>>1)&1) & ((B>>5)&1));
  S_1_6 = S_0_7^(((A>>1)&1) & ((B>>6)&1));
  C_1_6 = S_0_7&(((A>>1)&1) & ((B>>6)&1));
  S_1_7 = (((A>>1)&1) & ((B>>7)&1));
  tmp = S_1_1^C_1_0;
  S_2_0 = tmp^(((A>>2)&1) & ((B>>0)&1));
  C_2_0 = (tmp&(((A>>2)&1) & ((B>>0)&1)))|(S_1_1&C_1_0);
  tmp = S_1_2^C_1_1;
  S_2_1 = tmp^(((A>>2)&1) & ((B>>1)&1));
  C_2_1 = (tmp&(((A>>2)&1) & ((B>>1)&1)))|(S_1_2&C_1_1);
  tmp = S_1_3^C_1_2;
  S_2_2 = tmp^(((A>>2)&1) & ((B>>2)&1));
  C_2_2 = (tmp&(((A>>2)&1) & ((B>>2)&1)))|(S_1_3&C_1_2);
  tmp = S_1_4^C_1_3;
  S_2_3 = tmp^(((A>>2)&1) & ((B>>3)&1));
  C_2_3 = (tmp&(((A>>2)&1) & ((B>>3)&1)))|(S_1_4&C_1_3);
  tmp = S_1_5^C_1_4;
  S_2_4 = tmp^(((A>>2)&1) & ((B>>4)&1));
  C_2_4 = (tmp&(((A>>2)&1) & ((B>>4)&1)))|(S_1_5&C_1_4);
  tmp = S_1_6^C_1_5;
  S_2_5 = tmp^(((A>>2)&1) & ((B>>5)&1));
  C_2_5 = (tmp&(((A>>2)&1) & ((B>>5)&1)))|(S_1_6&C_1_5);
  tmp = S_1_7^C_1_6;
  S_2_6 = tmp^(((A>>2)&1) & ((B>>6)&1));
  C_2_6 = (tmp&(((A>>2)&1) & ((B>>6)&1)))|(S_1_7&C_1_6);
  S_2_7 = (((A>>2)&1) & ((B>>7)&1));
  tmp = S_2_1^C_2_0;
  S_3_0 = tmp^(((A>>3)&1) & ((B>>0)&1));
  C_3_0 = (tmp&(((A>>3)&1) & ((B>>0)&1)))|(S_2_1&C_2_0);
  tmp = S_2_2^C_2_1;
  S_3_1 = tmp^(((A>>3)&1) & ((B>>1)&1));
  C_3_1 = (tmp&(((A>>3)&1) & ((B>>1)&1)))|(S_2_2&C_2_1);
  tmp = S_2_3^C_2_2;
  S_3_2 = tmp^(((A>>3)&1) & ((B>>2)&1));
  C_3_2 = (tmp&(((A>>3)&1) & ((B>>2)&1)))|(S_2_3&C_2_2);
  tmp = S_2_4^C_2_3;
  S_3_3 = tmp^(((A>>3)&1) & ((B>>3)&1));
  C_3_3 = (tmp&(((A>>3)&1) & ((B>>3)&1)))|(S_2_4&C_2_3);
  tmp = S_2_5^C_2_4;
  S_3_4 = tmp^(((A>>3)&1) & ((B>>4)&1));
  C_3_4 = (tmp&(((A>>3)&1) & ((B>>4)&1)))|(S_2_5&C_2_4);
  tmp = S_2_6^C_2_5;
  S_3_5 = tmp^(((A>>3)&1) & ((B>>5)&1));
  C_3_5 = (tmp&(((A>>3)&1) & ((B>>5)&1)))|(S_2_6&C_2_5);
  tmp = S_2_7^C_2_6;
  S_3_6 = tmp^(((A>>3)&1) & ((B>>6)&1));
  C_3_6 = (tmp&(((A>>3)&1) & ((B>>6)&1)))|(S_2_7&C_2_6);
  S_3_7 = (((A>>3)&1) & ((B>>7)&1));
  tmp = S_3_1^C_3_0;
  S_4_0 = tmp^(((A>>4)&1) & ((B>>0)&1));
  C_4_0 = (tmp&(((A>>4)&1) & ((B>>0)&1)))|(S_3_1&C_3_0);
  tmp = S_3_2^C_3_1;
  S_4_1 = tmp^(((A>>4)&1) & ((B>>1)&1));
  C_4_1 = (tmp&(((A>>4)&1) & ((B>>1)&1)))|(S_3_2&C_3_1);
  tmp = S_3_3^C_3_2;
  S_4_2 = tmp^(((A>>4)&1) & ((B>>2)&1));
  C_4_2 = (tmp&(((A>>4)&1) & ((B>>2)&1)))|(S_3_3&C_3_2);
  tmp = S_3_4^C_3_3;
  S_4_3 = tmp^(((A>>4)&1) & ((B>>3)&1));
  C_4_3 = (tmp&(((A>>4)&1) & ((B>>3)&1)))|(S_3_4&C_3_3);
  tmp = S_3_5^C_3_4;
  S_4_4 = tmp^(((A>>4)&1) & ((B>>4)&1));
  C_4_4 = (tmp&(((A>>4)&1) & ((B>>4)&1)))|(S_3_5&C_3_4);
  tmp = S_3_6^C_3_5;
  S_4_5 = tmp^(((A>>4)&1) & ((B>>5)&1));
  C_4_5 = (tmp&(((A>>4)&1) & ((B>>5)&1)))|(S_3_6&C_3_5);
  tmp = S_3_7^C_3_6;
  S_4_6 = tmp^(((A>>4)&1) & ((B>>6)&1));
  C_4_6 = (tmp&(((A>>4)&1) & ((B>>6)&1)))|(S_3_7&C_3_6);
  S_4_7 = (((A>>4)&1) & ((B>>7)&1));
  tmp = S_4_1^C_4_0;
  S_5_0 = tmp^(((A>>5)&1) & ((B>>0)&1));
  C_5_0 = (tmp&(((A>>5)&1) & ((B>>0)&1)))|(S_4_1&C_4_0);
  tmp = S_4_2^C_4_1;
  S_5_1 = tmp^(((A>>5)&1) & ((B>>1)&1));
  C_5_1 = (tmp&(((A>>5)&1) & ((B>>1)&1)))|(S_4_2&C_4_1);
  tmp = S_4_3^C_4_2;
  S_5_2 = tmp^(((A>>5)&1) & ((B>>2)&1));
  C_5_2 = (tmp&(((A>>5)&1) & ((B>>2)&1)))|(S_4_3&C_4_2);
  tmp = S_4_4^C_4_3;
  S_5_3 = tmp^(((A>>5)&1) & ((B>>3)&1));
  C_5_3 = (tmp&(((A>>5)&1) & ((B>>3)&1)))|(S_4_4&C_4_3);
  tmp = S_4_5^C_4_4;
  S_5_4 = tmp^(((A>>5)&1) & ((B>>4)&1));
  C_5_4 = (tmp&(((A>>5)&1) & ((B>>4)&1)))|(S_4_5&C_4_4);
  tmp = S_4_6^C_4_5;
  S_5_5 = tmp^(((A>>5)&1) & ((B>>5)&1));
  C_5_5 = (tmp&(((A>>5)&1) & ((B>>5)&1)))|(S_4_6&C_4_5);
  tmp = S_4_7^C_4_6;
  S_5_6 = tmp^(((A>>5)&1) & ((B>>6)&1));
  C_5_6 = (tmp&(((A>>5)&1) & ((B>>6)&1)))|(S_4_7&C_4_6);
  S_5_7 = (((A>>5)&1) & ((B>>7)&1));
  tmp = S_5_1^C_5_0;
  S_6_0 = tmp^(((A>>6)&1) & ((B>>0)&1));
  C_6_0 = (tmp&(((A>>6)&1) & ((B>>0)&1)))|(S_5_1&C_5_0);
  tmp = S_5_2^C_5_1;
  S_6_1 = tmp^(((A>>6)&1) & ((B>>1)&1));
  C_6_1 = (tmp&(((A>>6)&1) & ((B>>1)&1)))|(S_5_2&C_5_1);
  tmp = S_5_3^C_5_2;
  S_6_2 = tmp^(((A>>6)&1) & ((B>>2)&1));
  C_6_2 = (tmp&(((A>>6)&1) & ((B>>2)&1)))|(S_5_3&C_5_2);
  tmp = S_5_4^C_5_3;
  S_6_3 = tmp^(((A>>6)&1) & ((B>>3)&1));
  C_6_3 = (tmp&(((A>>6)&1) & ((B>>3)&1)))|(S_5_4&C_5_3);
  tmp = S_5_5^C_5_4;
  S_6_4 = tmp^(((A>>6)&1) & ((B>>4)&1));
  C_6_4 = (tmp&(((A>>6)&1) & ((B>>4)&1)))|(S_5_5&C_5_4);
  tmp = S_5_6^C_5_5;
  S_6_5 = tmp^(((A>>6)&1) & ((B>>5)&1));
  C_6_5 = (tmp&(((A>>6)&1) & ((B>>5)&1)))|(S_5_6&C_5_5);
  tmp = S_5_7^C_5_6;
  S_6_6 = tmp^(((A>>6)&1) & ((B>>6)&1));
  C_6_6 = (tmp&(((A>>6)&1) & ((B>>6)&1)))|(S_5_7&C_5_6);
  S_6_7 = (((A>>6)&1) & ((B>>7)&1));
  tmp = S_6_1^C_6_0;
  S_7_0 = tmp^(((A>>7)&1) & ((B>>0)&1));
  C_7_0 = (tmp&(((A>>7)&1) & ((B>>0)&1)))|(S_6_1&C_6_0);
  tmp = S_6_2^C_6_1;
  S_7_1 = tmp^(((A>>7)&1) & ((B>>1)&1));
  C_7_1 = (tmp&(((A>>7)&1) & ((B>>1)&1)))|(S_6_2&C_6_1);
  tmp = S_6_3^C_6_2;
  S_7_2 = tmp^(((A>>7)&1) & ((B>>2)&1));
  C_7_2 = (tmp&(((A>>7)&1) & ((B>>2)&1)))|(S_6_3&C_6_2);
  tmp = S_6_4^C_6_3;
  S_7_3 = tmp^(((A>>7)&1) & ((B>>3)&1));
  C_7_3 = (tmp&(((A>>7)&1) & ((B>>3)&1)))|(S_6_4&C_6_3);
  tmp = S_6_5^C_6_4;
  S_7_4 = tmp^(((A>>7)&1) & ((B>>4)&1));
  C_7_4 = (tmp&(((A>>7)&1) & ((B>>4)&1)))|(S_6_5&C_6_4);
  tmp = S_6_6^C_6_5;
  S_7_5 = tmp^(((A>>7)&1) & ((B>>5)&1));
  C_7_5 = (tmp&(((A>>7)&1) & ((B>>5)&1)))|(S_6_6&C_6_5);
  tmp = S_6_7^C_6_6;
  S_7_6 = tmp^(((A>>7)&1) & ((B>>6)&1));
  C_7_6 = (tmp&(((A>>7)&1) & ((B>>6)&1)))|(S_6_7&C_6_6);
  S_7_7 = (((A>>7)&1) & ((B>>7)&1));
  P_ = (((C_7_0 & 1)<<0)|((C_7_1 & 1)<<1)|((C_7_2 & 1)<<2)|((C_7_3 & 1)<<3)|((C_7_4 & 1)<<4)|((C_7_5 & 1)<<5)|((C_7_6 & 1)<<6)) + (((S_7_1 & 1)<<0)|((S_7_2 & 1)<<1)|((S_7_3 & 1)<<2)|((S_7_4 & 1)<<3)|((S_7_5 & 1)<<4)|((S_7_6 & 1)<<5)|((S_7_7 & 1)<<6));
  S_8_0 = (P_ >> 0) & 1;
  S_8_1 = (P_ >> 1) & 1;
  S_8_2 = (P_ >> 2) & 1;
  S_8_3 = (P_ >> 3) & 1;
  S_8_4 = (P_ >> 4) & 1;
  S_8_5 = (P_ >> 5) & 1;
  S_8_6 = (P_ >> 6) & 1;
  S_8_7 = (P_ >> 7) & 1;
  P = 0;
  P |= (S_0_0 & 1) << 0;
  P |= (S_1_0 & 1) << 1;
  P |= (S_2_0 & 1) << 2;
  P |= (S_3_0 & 1) << 3;
  P |= (S_4_0 & 1) << 4;
  P |= (S_5_0 & 1) << 5;
  P |= (S_6_0 & 1) << 6;
  P |= (S_7_0 & 1) << 7;
  P |= (S_8_0 & 1) << 8;
  P |= (S_8_1 & 1) << 9;
  P |= (S_8_2 & 1) << 10;
  P |= (S_8_3 & 1) << 11;
  P |= (S_8_4 & 1) << 12;
  P |= (S_8_5 & 1) << 13;
  P |= (S_8_6 & 1) << 14;
  P |= (S_8_7 & 1) << 15;
  return P;
}

uint64_t mult8_cgp14zr_wc1925_rcam(const uint64_t B,const uint64_t A)
{
   uint64_t O, dout_72, dout_118, dout_147, dout_151, dout_152, dout_153, dout_154, dout_155, dout_161, dout_162, dout_163, dout_191, dout_192, dout_193, dout_194, dout_195, dout_196, dout_197, dout_198, dout_199, dout_200, dout_205, dout_206, dout_207, dout_208, dout_231, dout_232, dout_236, dout_237, dout_238, dout_239, dout_240, dout_241, dout_242, dout_243, dout_244, dout_245, dout_249, dout_250, dout_251, dout_252, dout_253, dout_271, dout_272, dout_273, dout_274, dout_275, dout_276, dout_277, dout_278, dout_279, dout_280, dout_281, dout_282, dout_283, dout_284, dout_285, dout_286, dout_287, dout_288, dout_289, dout_290, dout_295, dout_296, dout_297, dout_298, dout_307, dout_316, dout_317, dout_318, dout_319, dout_320, dout_321, dout_322, dout_323, dout_324, dout_325, dout_326, dout_327, dout_328, dout_329, dout_330, dout_331, dout_332, dout_333, dout_334, dout_335;   int avg=0;

   dout_72=((B >> 7)&1)&((A >> 2)&1);
   dout_118=((B >> 7)&1)&((A >> 3)&1);
   dout_147=((B >> 6)&1)&((A >> 3)&1);
   dout_151=dout_72^dout_118;
   dout_152=dout_72&((A >> 3)&1);
   dout_153=((B >> 7)&1)&dout_147;
   dout_154=dout_151^dout_147;
   dout_155=dout_152|dout_153;
   dout_161=((B >> 5)&1)&((A >> 4)&1);
   dout_162=((B >> 6)&1)&((A >> 4)&1);
   dout_163=((B >> 7)&1)&((A >> 4)&1);
   dout_191=dout_154^dout_162;
   dout_192=dout_154&dout_162;
   dout_193=dout_191&dout_161;
   dout_194=dout_191^dout_161;
   dout_195=dout_192|dout_193;
   dout_196=dout_155^dout_163;
   dout_197=dout_155&dout_163;
   dout_198=((B >> 7)&1)&dout_195;
   dout_199=dout_196^dout_195;
   dout_200=dout_197|dout_198;
   dout_205=((B >> 4)&1)&((A >> 5)&1);
   dout_206=((B >> 5)&1)&((A >> 5)&1);
   dout_207=((B >> 6)&1)&((A >> 5)&1);
   dout_208=((B >> 7)&1)&((A >> 5)&1);
   dout_231=dout_194^dout_206;
   dout_232=dout_194&dout_206;
   dout_236=dout_199^dout_207;
   dout_237=dout_199&dout_207;
   dout_238=dout_236&dout_232;
   dout_239=dout_236^dout_232;
   dout_240=dout_237|dout_238;
   dout_241=dout_200^dout_208;
   dout_242=dout_200&dout_208;
   dout_243=((B >> 7)&1)&dout_240;
   dout_244=dout_241^dout_240;
   dout_245=dout_242|dout_243;
   dout_249=((B >> 2)&1)&((A >> 6)&1);
   dout_250=((B >> 4)&1)&((A >> 6)&1);
   dout_251=((B >> 5)&1)&((A >> 6)&1);
   dout_252=((B >> 6)&1)&((A >> 6)&1);
   dout_253=((B >> 7)&1)&((A >> 6)&1);
   dout_271=dout_231^dout_250;
   dout_272=dout_231&dout_250;
   dout_273=dout_271&dout_249;
   dout_274=dout_271^dout_249;
   dout_275=dout_272|dout_273;
   dout_276=dout_239^dout_251;
   dout_277=dout_239&dout_251;
   dout_278=dout_276&dout_275;
   dout_279=dout_276^dout_275;
   dout_280=dout_277|dout_278;
   dout_281=dout_244^dout_252;
   dout_282=dout_244&dout_252;
   dout_283=dout_281&dout_280;
   dout_284=dout_281^dout_280;
   dout_285=dout_282|dout_283;
   dout_286=dout_245^dout_253;
   dout_287=dout_245&dout_253;
   dout_288=dout_253&dout_285;
   dout_289=dout_286^dout_285;
   dout_290=dout_287|dout_288;
   dout_295=((B >> 4)&1)&((A >> 7)&1);
   dout_296=((B >> 5)&1)&((A >> 7)&1);
   dout_297=((B >> 6)&1)&((A >> 7)&1);
   dout_298=((B >> 7)&1)&((A >> 7)&1);
   dout_307=((A >> 7)&1)&((B >> 3)&1);
   dout_316=dout_279^dout_295;
   dout_317=dout_279&dout_295;
   dout_318=dout_316&dout_307;
   dout_319=dout_316^dout_307;
   dout_320=dout_317|dout_318;
   dout_321=dout_284^dout_296;
   dout_322=dout_284&dout_296;
   dout_323=dout_321&dout_320;
   dout_324=dout_321^dout_320;
   dout_325=dout_322|dout_323;
   dout_326=dout_289^dout_297;
   dout_327=dout_289&dout_297;
   dout_328=dout_326&dout_325;
   dout_329=dout_326^dout_325;
   dout_330=dout_327|dout_328;
   dout_331=dout_290^dout_298;
   dout_332=dout_290&((A >> 7)&1);
   dout_333=dout_298&dout_330;
   dout_334=dout_331^dout_330;
   dout_335=dout_332|dout_333;

   O = 0;
   O |= (0&1) << 0;
   O |= (dout_205&1) << 1;
   O |= (dout_163&1) << 2;
   O |= (dout_194&1) << 3;
   O |= (0&1) << 4;
   O |= (dout_250&1) << 5;
   O |= (0&1) << 6;
   O |= (0&1) << 7;
   O |= (dout_205&1) << 8;
   O |= (dout_205&1) << 9;
   O |= (dout_274&1) << 10;
   O |= (dout_319&1) << 11;
   O |= (dout_324&1) << 12;
   O |= (dout_329&1) << 13;
   O |= (dout_334&1) << 14;
   O |= (dout_335&1) << 15;
   return O;
}

uint64_t mult8_cgp14ep_ep65536_wc16384_2_csamcsa(const uint64_t B,const uint64_t A)
{
   uint64_t O, dout_225, dout_267, dout_268, dout_299, dout_300, dout_302, dout_328, dout_331;   int avg=0;

   dout_225=((B >> 7)&1)&((A >> 6)&1);
   dout_267=((B >> 6)&1)&((A >> 7)&1);
   dout_268=((B >> 7)&1)&((A >> 7)&1);
   dout_299=dout_225|dout_267;
   dout_300=dout_225&dout_267;
   dout_302=dout_299|dout_268;
   dout_328=dout_268^dout_300;
   dout_331=dout_328^dout_302;

   O = 0;
   O |= (0&1) << 0;
   O |= (0&1) << 1;
   O |= (0&1) << 2;
   O |= (0&1) << 3;
   O |= (0&1) << 4;
   O |= (0&1) << 5;
   O |= (0&1) << 6;
   O |= (0&1) << 7;
   O |= (0&1) << 8;
   O |= (0&1) << 9;
   O |= (0&1) << 10;
   O |= (0&1) << 11;
   O |= (0&1) << 12;
   O |= (0&1) << 13;
   O |= (dout_331&1) << 14;
   O |= (dout_268&1) << 15;
   return O;
}

uint32_t mul16u_89C (uint16_t a, uint16_t b) {
    static uint16_t * cacheLL = NULL;
    static uint16_t * cacheLH = NULL;
    static uint16_t * cacheHL = NULL;
    static uint16_t * cacheHH = NULL;
    int fillData = cacheLL == NULL || cacheLH == NULL || cacheHL == NULL || cacheHH == NULL;

    if(!cacheLL) cacheLL = (uint16_t *)malloc(256 * 256 * sizeof(uint16_t));
    if(!cacheLH) cacheLH = (uint16_t *)malloc(256 * 256 * sizeof(uint16_t));
    if(!cacheHL) cacheHL = (uint16_t *)malloc(256 * 256 * sizeof(uint16_t));
    if(!cacheHH) cacheHH = (uint16_t *)malloc(256 * 256 * sizeof(uint16_t));
    
    if(fillData) {
        for(int i = 0; i < 256; i++) {
            for(int j = 0; j < 256; j++) {
                cacheLL[i * 256 + j] = mult8_cgp14ep_ep65536_wc16384_2_csamcsa(i, j);
                cacheLH[i * 256 + j] = mult8_cgp14zr_wc1925_rcam(i, j);
                cacheHL[i * 256 + j] = mult8_cgp14zr_wc1925_rcam(i, j);
                cacheHH[i * 256 + j] = trun8_tam00b(i, j);
            }
        }
    }

    uint32_t opt = 0;

    opt += (uint32_t)cacheLL[(a & 0xFF       ) * 256 + (b & 0xFF             )];
    opt += (uint32_t)cacheLH[(a & 0xFF       ) * 256 + ((b >> 8) & 0xFF      )] << 8;
    opt += (uint32_t)cacheHL[((a >> 8) & 0xFF) * 256 + (b & 0xFF             )] << 8;
    opt += (uint32_t)cacheHH[((a >> 8) & 0xFF) * 256 + ((b >> 8) & 0xFF      )] << 16;

    return opt;
}