/*********************************************************************/

/* Copyright 2009, 2010 The University of Texas at Austin.           */

/* All rights reserved.                                              */

/*                                                                   */

/* Redistribution and use in source and binary forms, with or        */

/* without modification, are permitted provided that the following   */

/* conditions are met:                                               */

/*                                                                   */

/*   1. Redistributions of source code must retain the above         */

/*      copyright notice, this list of conditions and the following  */

/*      disclaimer.                                                  */

/*                                                                   */

/*   2. Redistributions in binary form must reproduce the above      */

/*      copyright notice, this list of conditions and the following  */

/*      disclaimer in the documentation and/or other materials       */

/*      provided with the distribution.                              */

/*                                                                   */

/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */

/*    AUSTIN  ``AS IS''  AND ANY  EXPRESS OR  IMPLIED WARRANTIES,    */

/*    INCLUDING, BUT  NOT LIMITED  TO, THE IMPLIED  WARRANTIES OF    */

/*    MERCHANTABILITY  AND FITNESS FOR  A PARTICULAR  PURPOSE ARE    */

/*    DISCLAIMED.  IN  NO EVENT SHALL THE UNIVERSITY  OF TEXAS AT    */

/*    AUSTIN OR CONTRIBUTORS BE  LIABLE FOR ANY DIRECT, INDIRECT,    */

/*    INCIDENTAL,  SPECIAL, EXEMPLARY,  OR  CONSEQUENTIAL DAMAGES    */

/*    (INCLUDING, BUT  NOT LIMITED TO,  PROCUREMENT OF SUBSTITUTE    */

/*    GOODS  OR  SERVICES; LOSS  OF  USE,  DATA,  OR PROFITS;  OR    */

/*    BUSINESS INTERRUPTION) HOWEVER CAUSED  AND ON ANY THEORY OF    */

/*    LIABILITY, WHETHER  IN CONTRACT, STRICT  LIABILITY, OR TORT    */

/*    (INCLUDING NEGLIGENCE OR OTHERWISE)  ARISING IN ANY WAY OUT    */

/*    OF  THE  USE OF  THIS  SOFTWARE,  EVEN  IF ADVISED  OF  THE    */

/*    POSSIBILITY OF SUCH DAMAGE.                                    */

/*                                                                   */

/* The views and conclusions contained in the software and           */

/* documentation are those of the authors and should not be          */

/* interpreted as representing official policies, either expressed   */

/* or implied, of The University of Texas at Austin.                 */

/*********************************************************************/

#include <stdio.h></stdio.h>

#include "common.h"

#ifndef UNIT

#define INV(a) (ONE / (a))

#else

#define INV(a) (ONE)

#endif

int CNAME(BLASLONG m, BLASLONG n, FLOAT *a, BLASLONG lda, BLASLONG offset, FLOAT *b){

  BLASLONG i, ii, j, jj;

  FLOAT data01, data02, data03, data04, data05, data06, data07, data08;

  FLOAT data09, data10, data11, data12, data13, data14, data15, data16;

  FLOAT data17, data18, data19, data20, data21, data22, data23, data24;

  FLOAT data25, data26, data27, data28, data29, data30, data31, data32;

  FLOAT data33, data34, data35, data36, data37, data38, data39, data40;

  FLOAT data41, data42, data43, data44, data45, data46, data47, data48;

  FLOAT data49, data50, data51, data52, data53, data54, data55, data56;

  FLOAT data57, data58, data59, data60, data61, data62, data63, data64;

  FLOAT *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8;

  jj = offset;

  j = (n >> 3);

  while (j > 0){

    a1 = a + 0 * lda;

    a2 = a + 1 * lda;

    a3 = a + 2 * lda;

    a4 = a + 3 * lda;

    a5 = a + 4 * lda;

    a6 = a + 5 * lda;

    a7 = a + 6 * lda;

    a8 = a + 7 * lda;

    ii = 0;

    i = (m >> 3);

    while (i > 0) {

      if (ii == jj) {

#ifndef UNIT

	data01 = *(a1 + 0);

#endif

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	data05 = *(a1 + 4);

	data06 = *(a1 + 5);

	data07 = *(a1 + 6);

	data08 = *(a1 + 7);

#ifndef UNIT

	data10 = *(a2 + 1);

#endif

	data11 = *(a2 + 2);

	data12 = *(a2 + 3);

	data13 = *(a2 + 4);

	data14 = *(a2 + 5);

	data15 = *(a2 + 6);

	data16 = *(a2 + 7);

#ifndef UNIT

	data19 = *(a3 + 2);

#endif

	data20 = *(a3 + 3);

	data21 = *(a3 + 4);

	data22 = *(a3 + 5);

	data23 = *(a3 + 6);

	data24 = *(a3 + 7);

#ifndef UNIT

	data28 = *(a4 + 3);

#endif

	data29 = *(a4 + 4);

	data30 = *(a4 + 5);

	data31 = *(a4 + 6);

	data32 = *(a4 + 7);

#ifndef UNIT

	data37 = *(a5 + 4);

#endif

	data38 = *(a5 + 5);

	data39 = *(a5 + 6);

	data40 = *(a5 + 7);

#ifndef UNIT

	data46 = *(a6 + 5);

#endif

	data47 = *(a6 + 6);

	data48 = *(a6 + 7);

#ifndef UNIT

	data55 = *(a7 + 6);

#endif

	data56 = *(a7 + 7);

#ifndef UNIT

	data64 = *(a8 + 7);

#endif

	*(b +  0) = INV(data01);

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data05;

	*(b +  5) = data06;

	*(b +  6) = data07;

	*(b +  7) = data08;

	*(b +  9) = INV(data10);

	*(b + 10) = data11;

	*(b + 11) = data12;

	*(b + 12) = data13;

	*(b + 13) = data14;

	*(b + 14) = data15;

	*(b + 15) = data16;

	*(b + 18) = INV(data19);

	*(b + 19) = data20;

	*(b + 20) = data21;

	*(b + 21) = data22;

	*(b + 22) = data23;

	*(b + 23) = data24;

	*(b + 27) = INV(data28);

	*(b + 28) = data29;

	*(b + 29) = data30;

	*(b + 30) = data31;

	*(b + 31) = data32;

	*(b + 36) = INV(data37);

	*(b + 37) = data38;

	*(b + 38) = data39;

	*(b + 39) = data40;

	*(b + 45) = INV(data46);

	*(b + 46) = data47;

	*(b + 47) = data48;

	*(b + 54) = INV(data55);

	*(b + 55) = data56;

	*(b + 63) = INV(data64);

      }

      if (ii < jj) {

	data01 = *(a1 + 0);

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	data05 = *(a1 + 4);

	data06 = *(a1 + 5);

	data07 = *(a1 + 6);

	data08 = *(a1 + 7);

	data09 = *(a2 + 0);

	data10 = *(a2 + 1);

	data11 = *(a2 + 2);

	data12 = *(a2 + 3);

	data13 = *(a2 + 4);

	data14 = *(a2 + 5);

	data15 = *(a2 + 6);

	data16 = *(a2 + 7);

	data17 = *(a3 + 0);

	data18 = *(a3 + 1);

	data19 = *(a3 + 2);

	data20 = *(a3 + 3);

	data21 = *(a3 + 4);

	data22 = *(a3 + 5);

	data23 = *(a3 + 6);

	data24 = *(a3 + 7);

	data25 = *(a4 + 0);

	data26 = *(a4 + 1);

	data27 = *(a4 + 2);

	data28 = *(a4 + 3);

	data29 = *(a4 + 4);

	data30 = *(a4 + 5);

	data31 = *(a4 + 6);

	data32 = *(a4 + 7);

	data33 = *(a5 + 0);

	data34 = *(a5 + 1);

	data35 = *(a5 + 2);

	data36 = *(a5 + 3);

	data37 = *(a5 + 4);

	data38 = *(a5 + 5);

	data39 = *(a5 + 6);

	data40 = *(a5 + 7);

	data41 = *(a6 + 0);

	data42 = *(a6 + 1);

	data43 = *(a6 + 2);

	data44 = *(a6 + 3);

	data45 = *(a6 + 4);

	data46 = *(a6 + 5);

	data47 = *(a6 + 6);

	data48 = *(a6 + 7);

	data49 = *(a7 + 0);

	data50 = *(a7 + 1);

	data51 = *(a7 + 2);

	data52 = *(a7 + 3);

	data53 = *(a7 + 4);

	data54 = *(a7 + 5);

	data55 = *(a7 + 6);

	data56 = *(a7 + 7);

	data57 = *(a8 + 0);

	data58 = *(a8 + 1);

	data59 = *(a8 + 2);

	data60 = *(a8 + 3);

	data61 = *(a8 + 4);

	data62 = *(a8 + 5);

	data63 = *(a8 + 6);

	data64 = *(a8 + 7);

	*(b +  0) = data01;

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data05;

	*(b +  5) = data06;

	*(b +  6) = data07;

	*(b +  7) = data08;

	*(b +  8) = data09;

	*(b +  9) = data10;

	*(b + 10) = data11;

	*(b + 11) = data12;

	*(b + 12) = data13;

	*(b + 13) = data14;

	*(b + 14) = data15;

	*(b + 15) = data16;

	*(b + 16) = data17;

	*(b + 17) = data18;

	*(b + 18) = data19;

	*(b + 19) = data20;

	*(b + 20) = data21;

	*(b + 21) = data22;

	*(b + 22) = data23;

	*(b + 23) = data24;

	*(b + 24) = data25;

	*(b + 25) = data26;

	*(b + 26) = data27;

	*(b + 27) = data28;

	*(b + 28) = data29;

	*(b + 29) = data30;

	*(b + 30) = data31;

	*(b + 31) = data32;

	*(b + 32) = data33;

	*(b + 33) = data34;

	*(b + 34) = data35;

	*(b + 35) = data36;

	*(b + 36) = data37;

	*(b + 37) = data38;

	*(b + 38) = data39;

	*(b + 39) = data40;

	*(b + 40) = data41;

	*(b + 41) = data42;

	*(b + 42) = data43;

	*(b + 43) = data44;

	*(b + 44) = data45;

	*(b + 45) = data46;

	*(b + 46) = data47;

	*(b + 47) = data48;

	*(b + 48) = data49;

	*(b + 49) = data50;

	*(b + 50) = data51;

	*(b + 51) = data52;

	*(b + 52) = data53;

	*(b + 53) = data54;

	*(b + 54) = data55;

	*(b + 55) = data56;

	*(b + 56) = data57;

	*(b + 57) = data58;

	*(b + 58) = data59;

	*(b + 59) = data60;

	*(b + 60) = data61;

	*(b + 61) = data62;

	*(b + 62) = data63;

	*(b + 63) = data64;

      }

      a1 += 8 * lda;

      a2 += 8 * lda;

      a3 += 8 * lda;

      a4 += 8 * lda;

      a5 += 8 * lda;

      a6 += 8 * lda;

      a7 += 8 * lda;

      a8 += 8 * lda;

      b += 64;

      i  --;

      ii += 8;

    }

    if (m & 4) {

      if (ii == jj) {

#ifndef UNIT

	data01 = *(a1 + 0);

#endif

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	data05 = *(a1 + 4);

	data06 = *(a1 + 5);

	data07 = *(a1 + 6);

	data08 = *(a1 + 7);

#ifndef UNIT

	data10 = *(a2 + 1);

#endif

	data11 = *(a2 + 2);

	data12 = *(a2 + 3);

	data13 = *(a2 + 4);

	data14 = *(a2 + 5);

	data15 = *(a2 + 6);

	data16 = *(a2 + 7);

#ifndef UNIT

	data19 = *(a3 + 2);

#endif

	data20 = *(a3 + 3);

	data21 = *(a3 + 4);

	data22 = *(a3 + 5);

	data23 = *(a3 + 6);

	data24 = *(a3 + 7);

#ifndef UNIT

	data28 = *(a4 + 3);

#endif

	data29 = *(a4 + 4);

	data30 = *(a4 + 5);

	data31 = *(a4 + 6);

	data32 = *(a4 + 7);

	*(b +  0) = INV(data01);

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data05;

	*(b +  5) = data06;

	*(b +  6) = data07;

	*(b +  7) = data08;

	*(b +  9) = INV(data10);

	*(b + 10) = data11;

	*(b + 11) = data12;

	*(b + 12) = data13;

	*(b + 13) = data14;

	*(b + 14) = data15;

	*(b + 15) = data16;

	*(b + 18) = INV(data19);

	*(b + 19) = data20;

	*(b + 20) = data21;

	*(b + 21) = data22;

	*(b + 22) = data23;

	*(b + 23) = data24;

	*(b + 27) = INV(data28);

	*(b + 28) = data29;

	*(b + 29) = data30;

	*(b + 30) = data31;

	*(b + 31) = data32;

      }

      if (ii < jj) {

	data01 = *(a1 + 0);

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	data05 = *(a1 + 4);

	data06 = *(a1 + 5);

	data07 = *(a1 + 6);

	data08 = *(a1 + 7);

	data09 = *(a2 + 0);

	data10 = *(a2 + 1);

	data11 = *(a2 + 2);

	data12 = *(a2 + 3);

	data13 = *(a2 + 4);

	data14 = *(a2 + 5);

	data15 = *(a2 + 6);

	data16 = *(a2 + 7);

	data17 = *(a3 + 0);

	data18 = *(a3 + 1);

	data19 = *(a3 + 2);

	data20 = *(a3 + 3);

	data21 = *(a3 + 4);

	data22 = *(a3 + 5);

	data23 = *(a3 + 6);

	data24 = *(a3 + 7);

	data25 = *(a4 + 0);

	data26 = *(a4 + 1);

	data27 = *(a4 + 2);

	data28 = *(a4 + 3);

	data29 = *(a4 + 4);

	data30 = *(a4 + 5);

	data31 = *(a4 + 6);

	data32 = *(a4 + 7);

	*(b +  0) = data01;

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data05;

	*(b +  5) = data06;

	*(b +  6) = data07;

	*(b +  7) = data08;

	*(b +  8) = data09;

	*(b +  9) = data10;

	*(b + 10) = data11;

	*(b + 11) = data12;

	*(b + 12) = data13;

	*(b + 13) = data14;

	*(b + 14) = data15;

	*(b + 15) = data16;

	*(b + 16) = data17;

	*(b + 17) = data18;

	*(b + 18) = data19;

	*(b + 19) = data20;

	*(b + 20) = data21;

	*(b + 21) = data22;

	*(b + 22) = data23;

	*(b + 23) = data24;

	*(b + 24) = data25;

	*(b + 25) = data26;

	*(b + 26) = data27;

	*(b + 27) = data28;

	*(b + 28) = data29;

	*(b + 29) = data30;

	*(b + 30) = data31;

	*(b + 31) = data32;

      }

      a1 += 4 * lda;

      a2 += 4 * lda;

      a3 += 4 * lda;

      a4 += 4 * lda;

      b += 32;

      ii += 4;

    }

    if (m & 2) {

      if (ii == jj) {

#ifndef UNIT

	data01 = *(a1 + 0);

#endif

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	data05 = *(a1 + 4);

	data06 = *(a1 + 5);

	data07 = *(a1 + 6);

	data08 = *(a1 + 7);

#ifndef UNIT

	data10 = *(a2 + 1);

#endif

	data11 = *(a2 + 2);

	data12 = *(a2 + 3);

	data13 = *(a2 + 4);

	data14 = *(a2 + 5);

	data15 = *(a2 + 6);

	data16 = *(a2 + 7);

	*(b +  0) = INV(data01);

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data05;

	*(b +  5) = data06;

	*(b +  6) = data07;

	*(b +  7) = data08;

	*(b +  9) = INV(data10);

	*(b + 10) = data11;

	*(b + 11) = data12;

	*(b + 12) = data13;

	*(b + 13) = data14;

	*(b + 14) = data15;

	*(b + 15) = data16;

      }

      if (ii < jj) {

	data01 = *(a1 + 0);

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	data05 = *(a1 + 4);

	data06 = *(a1 + 5);

	data07 = *(a1 + 6);

	data08 = *(a1 + 7);

	data09 = *(a2 + 0);

	data10 = *(a2 + 1);

	data11 = *(a2 + 2);

	data12 = *(a2 + 3);

	data13 = *(a2 + 4);

	data14 = *(a2 + 5);

	data15 = *(a2 + 6);

	data16 = *(a2 + 7);

	*(b +  0) = data01;

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data05;

	*(b +  5) = data06;

	*(b +  6) = data07;

	*(b +  7) = data08;

	*(b +  8) = data09;

	*(b +  9) = data10;

	*(b + 10) = data11;

	*(b + 11) = data12;

	*(b + 12) = data13;

	*(b + 13) = data14;

	*(b + 14) = data15;

	*(b + 15) = data16;

      }

      a1 += 2 * lda;

      a2 += 2 * lda;

      b += 16;

      ii += 2;

    }

    if (m & 1) {

      if (ii == jj) {

#ifndef UNIT

	data01 = *(a1 + 0);

#endif

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	data05 = *(a1 + 4);

	data06 = *(a1 + 5);

	data07 = *(a1 + 6);

	data08 = *(a1 + 7);

	*(b +  0) = INV(data01);

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data05;

	*(b +  5) = data06;

	*(b +  6) = data07;

	*(b +  7) = data08;

      }

      if (ii < jj) {

	data01 = *(a1 + 0);

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	data05 = *(a1 + 4);

	data06 = *(a1 + 5);

	data07 = *(a1 + 6);

	data08 = *(a1 + 7);

	*(b +  0) = data01;

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data05;

	*(b +  5) = data06;

	*(b +  6) = data07;

	*(b +  7) = data08;

      }

      b += 8;

    }

    a += 8;

    jj += 8;

    j  --;

  }

  if (n & 4) {

    a1 = a + 0 * lda;

    a2 = a + 1 * lda;

    a3 = a + 2 * lda;

    a4 = a + 3 * lda;

    ii = 0;

    i = (m >> 2);

    while (i > 0) {

      if (ii == jj) {

#ifndef UNIT

	data01 = *(a1 + 0);

#endif

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

#ifndef UNIT

	data10 = *(a2 + 1);

#endif

	data11 = *(a2 + 2);

	data12 = *(a2 + 3);

#ifndef UNIT

	data19 = *(a3 + 2);

#endif

	data20 = *(a3 + 3);

#ifndef UNIT

	data28 = *(a4 + 3);

#endif

	*(b +  0) = INV(data01);

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  5) = INV(data10);

	*(b +  6) = data11;

	*(b +  7) = data12;

	*(b + 10) = INV(data19);

	*(b + 11) = data20;

	*(b + 15) = INV(data28);

      }

      if (ii < jj) {

	data01 = *(a1 + 0);

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	data09 = *(a2 + 0);

	data10 = *(a2 + 1);

	data11 = *(a2 + 2);

	data12 = *(a2 + 3);

	data17 = *(a3 + 0);

	data18 = *(a3 + 1);

	data19 = *(a3 + 2);

	data20 = *(a3 + 3);

	data25 = *(a4 + 0);

	data26 = *(a4 + 1);

	data27 = *(a4 + 2);

	data28 = *(a4 + 3);

	*(b +  0) = data01;

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data09;

	*(b +  5) = data10;

	*(b +  6) = data11;

	*(b +  7) = data12;

	*(b +  8) = data17;

	*(b +  9) = data18;

	*(b + 10) = data19;

	*(b + 11) = data20;

	*(b + 12) = data25;

	*(b + 13) = data26;

	*(b + 14) = data27;

	*(b + 15) = data28;

      }

      a1 += 4 * lda;

      a2 += 4 * lda;

      a3 += 4 * lda;

      a4 += 4 * lda;

      b += 16;

      i  --;

      ii += 4;

    }

    if (m & 2) {

      if (ii == jj) {

#ifndef UNIT

	data01 = *(a1 + 0);

#endif

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

#ifndef UNIT

	data10 = *(a2 + 1);

#endif

	data11 = *(a2 + 2);

	data12 = *(a2 + 3);

	*(b +  0) = INV(data01);

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  6) = INV(data10);

	*(b +  7) = data11;

	*(b +  8) = data12;

      }

      if (ii < jj) {

	data01 = *(a1 + 0);

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	data09 = *(a2 + 0);

	data10 = *(a2 + 1);

	data11 = *(a2 + 2);

	data12 = *(a2 + 3);

	*(b +  0) = data01;

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data09;

	*(b +  5) = data10;

	*(b +  6) = data11;

	*(b +  7) = data12;

      }

      a1 += 2 * lda;

      a2 += 2 * lda;

      b += 8;

      ii += 2;

    }

    if (m & 1) {

      if (ii == jj) {

#ifndef UNIT

	data01 = *(a1 + 0);

#endif

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	*(b +  0) = INV(data01);

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

	*(b +  4) = data05;

      }

      if (ii < jj) {

	data01 = *(a1 + 0);

	data02 = *(a1 + 1);

	data03 = *(a1 + 2);

	data04 = *(a1 + 3);

	*(b +  0) = data01;

	*(b +  1) = data02;

	*(b +  2) = data03;

	*(b +  3) = data04;

      }

      b += 4;

    }

    a += 4;

    jj += 4;

  }

  if (n & 2) {

    a1 = a + 0 * lda;

    a2 = a + 1 * lda;

    ii = 0;

    i = (m >> 1);

    while (i > 0) {

      if (ii == jj) {

#ifndef UNIT

	data01 = *(a1 + 0);

#endif

	data02 = *(a1 + 1);

#ifndef UNIT

	data10 = *(a2 + 1);

#endif

	*(b +  0) = INV(data01);

	*(b +  1) = data02;

	*(b +  3) = INV(data10);

      }

      if (ii < jj) {

	data01 = *(a1 + 0);

	data02 = *(a1 + 1);

	data09 = *(a2 + 0);

	data10 = *(a2 + 1);

	*(b +  0) = data01;

	*(b +  1) = data02;

	*(b +  2) = data09;

	*(b +  3) = data10;

      }

      a1 += 2 * lda;

      a2 += 2 * lda;

      b += 4;

      i  --;

      ii += 2;

    }

    if (m & 1) {

      if (ii == jj) {

#ifndef UNIT

	data01 = *(a1 + 0);

#endif

	data02 = *(a1 + 1);

	*(b +  0) = INV(data01);

	*(b +  1) = data02;

      }

      if (ii < jj) {