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/*
*
* cblas_sgemm.c
* This program is a C interface to sgemm.
* Written by Keita Teranishi
* 4/8/1998
*
*/
#include "cblas.h"
#include "cblas_f77.h"
void cblas_sgemm(const enum CBLAS_ORDER Order, const enum CBLAS_TRANSPOSE TransA,
const enum CBLAS_TRANSPOSE TransB, const int M, const int N,
const int K, const float alpha, const float *A,
const int lda, const float *B, const int ldb,
const float beta, float *C, const int ldc)
{
char TA, TB;
#ifdef F77_CHAR
F77_CHAR F77_TA, F77_TB;
#else
#define F77_TA &TA
#define F77_TB &TB
#endif
#ifdef F77_INT
F77_INT F77_M=M, F77_N=N, F77_K=K, F77_lda=lda, F77_ldb=ldb;
F77_INT F77_ldc=ldc;
#else
#define F77_M M
#define F77_N N
#define F77_K K
#define F77_lda lda
#define F77_ldb ldb
#define F77_ldc ldc
#endif
extern int CBLAS_CallFromC;
extern int RowMajorStrg;
RowMajorStrg = 0;
CBLAS_CallFromC = 1;
if( Order == CblasColMajor )
{
if(TransA == CblasTrans) TA='T';
else if ( TransA == CblasConjTrans ) TA='C';
else if ( TransA == CblasNoTrans ) TA='N';
else
{
cblas_xerbla(2, "cblas_sgemm",
"Illegal TransA setting, %d\n", TransA);
CBLAS_CallFromC = 0;
RowMajorStrg = 0;
return;
}
if(TransB == CblasTrans) TB='T';
else if ( TransB == CblasConjTrans ) TB='C';
else if ( TransB == CblasNoTrans ) TB='N';
else
{
cblas_xerbla(3, "cblas_sgemm",
"Illegal TransB setting, %d\n", TransB);
CBLAS_CallFromC = 0;
RowMajorStrg = 0;
return;
}
#ifdef F77_CHAR
F77_TA = C2F_CHAR(&TA);
F77_TB = C2F_CHAR(&TB);
#endif
F77_sgemm(F77_TA, F77_TB, &F77_M, &F77_N, &F77_K, &alpha, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc);
} else if (Order == CblasRowMajor)
{
RowMajorStrg = 1;
if(TransA == CblasTrans) TB='T';
else if ( TransA == CblasConjTrans ) TB='C';
else if ( TransA == CblasNoTrans ) TB='N';
else
{
cblas_xerbla(2, "cblas_sgemm",
"Illegal TransA setting, %d\n", TransA);
CBLAS_CallFromC = 0;
RowMajorStrg = 0;
return;
}
if(TransB == CblasTrans) TA='T';
else if ( TransB == CblasConjTrans ) TA='C';
else if ( TransB == CblasNoTrans ) TA='N';
else
{
cblas_xerbla(2, "cblas_sgemm",
"Illegal TransA setting, %d\n", TransA);
CBLAS_CallFromC = 0;
RowMajorStrg = 0;
return;
}
#ifdef F77_CHAR
F77_TA = C2F_CHAR(&TA);
F77_TB = C2F_CHAR(&TB);
#endif
F77_sgemm(F77_TA, F77_TB, &F77_N, &F77_M, &F77_K, &alpha, B, &F77_ldb, A, &F77_lda, &beta, C, &F77_ldc);
} else
cblas_xerbla(1, "cblas_sgemm",
"Illegal Order setting, %d\n", Order);
CBLAS_CallFromC = 0;
RowMajorStrg = 0;
}
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