1 /*
2 *
3 * cblas_sgemm.c
4 * This program is a C interface to sgemm.
5 * Written by Keita Teranishi
6 * 4/8/1998
7 *
8 */
9
10 #include "cblas.h"
11 #include "cblas_f77.h"
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)12 void cblas_sgemm(const enum CBLAS_ORDER Order, const enum CBLAS_TRANSPOSE TransA,
13 const enum CBLAS_TRANSPOSE TransB, const int M, const int N,
14 const int K, const float alpha, const float *A,
15 const int lda, const float *B, const int ldb,
16 const float beta, float *C, const int ldc)
17 {
18 char TA, TB;
19 #ifdef F77_CHAR
20 F77_CHAR F77_TA, F77_TB;
21 #else
22 #define F77_TA &TA
23 #define F77_TB &TB
24 #endif
25
26 #ifdef F77_INT
27 F77_INT F77_M=M, F77_N=N, F77_K=K, F77_lda=lda, F77_ldb=ldb;
28 F77_INT F77_ldc=ldc;
29 #else
30 #define F77_M M
31 #define F77_N N
32 #define F77_K K
33 #define F77_lda lda
34 #define F77_ldb ldb
35 #define F77_ldc ldc
36 #endif
37
38 extern int CBLAS_CallFromC;
39 extern int RowMajorStrg;
40 RowMajorStrg = 0;
41 CBLAS_CallFromC = 1;
42 if( Order == CblasColMajor )
43 {
44 if(TransA == CblasTrans) TA='T';
45 else if ( TransA == CblasConjTrans ) TA='C';
46 else if ( TransA == CblasNoTrans ) TA='N';
47 else
48 {
49 cblas_xerbla(2, "cblas_sgemm",
50 "Illegal TransA setting, %d\n", TransA);
51 CBLAS_CallFromC = 0;
52 RowMajorStrg = 0;
53 return;
54 }
55
56 if(TransB == CblasTrans) TB='T';
57 else if ( TransB == CblasConjTrans ) TB='C';
58 else if ( TransB == CblasNoTrans ) TB='N';
59 else
60 {
61 cblas_xerbla(3, "cblas_sgemm",
62 "Illegal TransB setting, %d\n", TransB);
63 CBLAS_CallFromC = 0;
64 RowMajorStrg = 0;
65 return;
66 }
67
68 #ifdef F77_CHAR
69 F77_TA = C2F_CHAR(&TA);
70 F77_TB = C2F_CHAR(&TB);
71 #endif
72
73 F77_sgemm(F77_TA, F77_TB, &F77_M, &F77_N, &F77_K, &alpha, A, &F77_lda, B, &F77_ldb, &beta, C, &F77_ldc);
74 } else if (Order == CblasRowMajor)
75 {
76 RowMajorStrg = 1;
77 if(TransA == CblasTrans) TB='T';
78 else if ( TransA == CblasConjTrans ) TB='C';
79 else if ( TransA == CblasNoTrans ) TB='N';
80 else
81 {
82 cblas_xerbla(2, "cblas_sgemm",
83 "Illegal TransA setting, %d\n", TransA);
84 CBLAS_CallFromC = 0;
85 RowMajorStrg = 0;
86 return;
87 }
88 if(TransB == CblasTrans) TA='T';
89 else if ( TransB == CblasConjTrans ) TA='C';
90 else if ( TransB == CblasNoTrans ) TA='N';
91 else
92 {
93 cblas_xerbla(2, "cblas_sgemm",
94 "Illegal TransA setting, %d\n", TransA);
95 CBLAS_CallFromC = 0;
96 RowMajorStrg = 0;
97 return;
98 }
99 #ifdef F77_CHAR
100 F77_TA = C2F_CHAR(&TA);
101 F77_TB = C2F_CHAR(&TB);
102 #endif
103
104 F77_sgemm(F77_TA, F77_TB, &F77_N, &F77_M, &F77_K, &alpha, B, &F77_ldb, A, &F77_lda, &beta, C, &F77_ldc);
105 } else
106 cblas_xerbla(1, "cblas_sgemm",
107 "Illegal Order setting, %d\n", Order);
108 CBLAS_CallFromC = 0;
109 RowMajorStrg = 0;
110 }
111