Add CBLAS library.

Change-Id: I6d5c0ea5eb350f1d35637d8963a78811a4e015d8

1 files changed, 78 insertions, 0 deletions

diff --git a/src/cblas_sgemv.c b/src/cblas_sgemv.c
new file mode 100644
index 0000000..45b7196
--- /dev/null
+++ b/src/cblas_sgemv.c
@@ -0,0 +1,78 @@
+/*
+ *
+ * cblas_sgemv.c
+ * This program is a C interface to sgemv.
+ * Written by Keita Teranishi
+ * 4/6/1998
+ * 
+ */
+#include "cblas.h"
+#include "cblas_f77.h"
+void cblas_sgemv(const enum CBLAS_ORDER order,
+                 const enum CBLAS_TRANSPOSE TransA, const int M, const int N,
+                 const float alpha, const float  *A, const int lda,
+                 const float  *X, const int incX, const float beta,
+                 float  *Y, const int incY)
+{
+   char TA;
+#ifdef F77_CHAR
+   F77_CHAR F77_TA;
+#else
+   #define F77_TA &TA   
+#endif
+#ifdef F77_INT
+   F77_INT F77_M=M, F77_N=N, F77_lda=lda, F77_incX=incX, F77_incY=incY;
+#else
+   #define F77_M M
+   #define F77_N N
+   #define F77_lda lda
+   #define F77_incX incX
+   #define F77_incY incY
+#endif
+
+   extern int CBLAS_CallFromC;
+   extern int RowMajorStrg;
+   RowMajorStrg = 0;
+
+   CBLAS_CallFromC = 1;
+   if (order == CblasColMajor)
+   {
+      if (TransA == CblasNoTrans) TA = 'N';
+      else if (TransA == CblasTrans) TA = 'T';
+      else if (TransA == CblasConjTrans) TA = 'C';
+      else 
+      {
+         cblas_xerbla(2, "cblas_sgemv","Illegal TransA setting, %d\n", TransA);
+         CBLAS_CallFromC = 0;
+         RowMajorStrg = 0;
+      }
+      #ifdef F77_CHAR
+         F77_TA = C2F_CHAR(&TA);
+      #endif
+      F77_sgemv(F77_TA, &F77_M, &F77_N, &alpha, A, &F77_lda, X, &F77_incX, 
+                &beta, Y, &F77_incY);
+   }
+   else if (order == CblasRowMajor)
+   {
+      RowMajorStrg = 1;
+      if (TransA == CblasNoTrans) TA = 'T';
+      else if (TransA == CblasTrans) TA = 'N';
+      else if (TransA == CblasConjTrans) TA = 'N';
+      else 
+      {
+         cblas_xerbla(2, "cblas_sgemv", "Illegal TransA setting, %d\n", TransA);
+         CBLAS_CallFromC = 0;
+         RowMajorStrg = 0;
+         return;
+      }
+      #ifdef F77_CHAR
+         F77_TA = C2F_CHAR(&TA);
+      #endif
+      F77_sgemv(F77_TA, &F77_N, &F77_M, &alpha, A, &F77_lda, X,
+                &F77_incX, &beta, Y, &F77_incY);
+   }
+   else cblas_xerbla(1, "cblas_sgemv", "Illegal Order setting, %d\n", order);
+   CBLAS_CallFromC = 0;
+   RowMajorStrg = 0;
+   return;
+}