/*********************************************************************/
/* 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:                                               */
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/*      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    */
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/*                                                                   */
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/* documentation are those of the authors and should not be          */
/* interpreted as representing official policies, either expressed   */
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/*********************************************************************/

#include <stdio.h>
#include "common.h"

int CNAME(BLASLONG m, BLASLONG n, FLOAT *a, BLASLONG lda, FLOAT *b){
  BLASLONG i, j;

  FLOAT *aoffset;
  FLOAT *aoffset1, *aoffset2, *aoffset3, *aoffset4;
  FLOAT *aoffset5, *aoffset6, *aoffset7, *aoffset8;

  FLOAT *boffset;
  FLOAT ctemp01, ctemp02, ctemp03, ctemp04;
  FLOAT ctemp05, ctemp06, ctemp07, ctemp08;
  FLOAT ctemp09, ctemp10, ctemp11, ctemp12;
  FLOAT ctemp13, ctemp14, ctemp15, ctemp16;

  aoffset = a;
  boffset = b;
  lda *= 2;
  
  j = (n >> 3);
  if (j > 0){
    do{
      aoffset1  = aoffset;
      aoffset2  = aoffset1 + lda;
      aoffset3  = aoffset2 + lda;
      aoffset4  = aoffset3 + lda;
      aoffset5  = aoffset4 + lda;
      aoffset6  = aoffset5 + lda;
      aoffset7  = aoffset6 + lda;
      aoffset8  = aoffset7 + lda;
      aoffset += 8 * lda;
      
      i = m;
      if (i > 0){
	do{
	  ctemp01 = *(aoffset1 +  0);
	  ctemp02 = *(aoffset1 +  1);
	  ctemp03 = *(aoffset2 +  0);
	  ctemp04 = *(aoffset2 +  1);
	  ctemp05 = *(aoffset3 +  0);
	  ctemp06 = *(aoffset3 +  1);
	  ctemp07 = *(aoffset4 +  0);
	  ctemp08 = *(aoffset4 +  1);
	  ctemp09 = *(aoffset5 +  0);
	  ctemp10 = *(aoffset5 +  1);
	  ctemp11 = *(aoffset6 +  0);
	  ctemp12 = *(aoffset6 +  1);
	  ctemp13 = *(aoffset7 +  0);
	  ctemp14 = *(aoffset7 +  1);
	  ctemp15 = *(aoffset8 +  0);
	  ctemp16 = *(aoffset8 +  1);
	  
	  *(boffset +  0) = ctemp01;
	  *(boffset +  1) = ctemp02;
	  *(boffset +  2) = ctemp03;
	  *(boffset +  3) = ctemp04;
	  *(boffset +  4) = ctemp05;
	  *(boffset +  5) = ctemp06;
	  *(boffset +  6) = ctemp07;
	  *(boffset +  7) = ctemp08;
	  *(boffset +  8) = ctemp09;
	  *(boffset +  9) = ctemp10;
	  *(boffset + 10) = ctemp11;
	  *(boffset + 11) = ctemp12;
	  *(boffset + 12) = ctemp13;
	  *(boffset + 13) = ctemp14;
	  *(boffset + 14) = ctemp15;
	  *(boffset + 15) = ctemp16;

	  aoffset1 += 2;
	  aoffset2 += 2;
	  aoffset3 += 2;
	  aoffset4 += 2;
	  aoffset5 += 2;
	  aoffset6 += 2;
	  aoffset7 += 2;
	  aoffset8 += 2;
	  
	  boffset += 16;
	  i --;
	}while(i > 0);
      }
      j--;
    }while(j > 0);
  } /* end of if(j > 0) */
  
  if (n & 4){
    aoffset1  = aoffset;
    aoffset2  = aoffset1 + lda;
    aoffset3  = aoffset2 + lda;
    aoffset4  = aoffset3 + lda;
    aoffset += 4 * lda;
    
    i = m;
    if (i > 0){
      do{
	ctemp01 = *(aoffset1 +  0);
	ctemp02 = *(aoffset1 +  1);
	ctemp03 = *(aoffset2 +  0);
	ctemp04 = *(aoffset2 +  1);
	ctemp05 = *(aoffset3 +  0);
	ctemp06 = *(aoffset3 +  1);
	ctemp07 = *(aoffset4 +  0);
	ctemp08 = *(aoffset4 +  1);
	
	*(boffset +  0) = ctemp01;
	*(boffset +  1) = ctemp02;
	*(boffset +  2) = ctemp03;
	*(boffset +  3) = ctemp04;
	*(boffset +  4) = ctemp05;
	*(boffset +  5) = ctemp06;
	*(boffset +  6) = ctemp07;
	*(boffset +  7) = ctemp08;

	aoffset1 += 2;
	aoffset2 += 2;
	aoffset3 += 2;
	aoffset4 += 2;

	boffset += 8;
	i --;
      }while(i > 0);
    }
  } /* end of if(j > 0) */

  if (n & 2){
    aoffset1  = aoffset;
    aoffset2  = aoffset1 + lda;
    aoffset += 2 * lda;
    
    i = m;
    if (i > 0){
      do{
	ctemp01 = *(aoffset1 +  0);
	ctemp02 = *(aoffset1 +  1);
	ctemp03 = *(aoffset2 +  0);
	ctemp04 = *(aoffset2 +  1);
	
	*(boffset +  0) = ctemp01;
	*(boffset +  1) = ctemp02;
	*(boffset +  2) = ctemp03;
	*(boffset +  3) = ctemp04;
	
	aoffset1 +=  2;
	aoffset2 +=  2;
	boffset  +=  4;
	i --;
      }while(i > 0);
    }
   
  } /* end of if(j > 0) */

  if (n & 1){
    aoffset1  = aoffset;
    
    i = m;
    if (i > 0){
      do{
	ctemp01 = *(aoffset1 +  0);
	ctemp02 = *(aoffset1 +  1);

	*(boffset +  0) = ctemp01;
	*(boffset +  1) = ctemp02;

	aoffset1 += 2;
	boffset  += 2;
	i --;
      }while(i > 0);
    }
    
  } /* end of if(j > 0) */

  return 0;
}