3 files changed, 21 insertions, 24 deletions
diff --git a/matrix/generic/cumatrix.c b/matrix/generic/cumatrix.c
index 7afa51a..90c6d6a 100644
--- a/matrix/generic/cumatrix.c
+++ b/matrix/generic/cumatrix.c
@@ -8,6 +8,7 @@
 #define MATRIX_DATA_WRITE(data, idx, val) cuda_matrix_(write)(data, idx, val)
 #define MATRIX_DATA_READ(data, idx) cuda_matrix_(read)(data, idx)
 #define MATRIX_INIT(L) cuda_matrix_(init)(L)
+#define MATRIX_BASE_TNAME nerv_matrix_cuda_tname
 #define NERV_GENERIC_MATRIX
 #define NERV_GENERIC_CUKERNEL
 #include "../../common.h"
@@ -34,30 +35,18 @@ static void nerv_matrix_(add_)(const Matrix *a, const Matrix *b,
 }
 
 static int nerv_matrix_(add)(lua_State *L) {
-    Matrix *a = luaT_checkudata(L, 1, nerv_matrix_(tname));
-    Matrix *b = luaT_checkudata(L, 2, nerv_matrix_(tname));
-    Matrix *c;
+    Matrix *c = luaT_checkudata(L, 1, nerv_matrix_(tname));
+    Matrix *a = luaT_checkudata(L, 2, nerv_matrix_(tname));
+    Matrix *b = luaT_checkudata(L, 3, nerv_matrix_(tname));
+    MATRIX_ELEM alpha = luaL_checknumber(L, 4); /* alpha */
+    MATRIX_ELEM beta = luaL_checknumber(L, 5); /* alpha */
     if (!(a->nrow == b->nrow && a->ncol == b->ncol))
         nerv_error(L, "Matrices should be of the same dimension");
-    c = nerv_matrix_(new_)(a->nrow, a->ncol);
-    nerv_matrix_(add_)(a, b, c, 1.0f, 1.0f);
+    nerv_matrix_(add_)(a, b, c, alpha, beta);
     luaT_pushudata(L, c, nerv_matrix_(tname));
     return 1;
 }
 
-static int nerv_matrix_(sub)(lua_State *L) {
-    Matrix *a = luaT_checkudata(L, 1, nerv_matrix_(tname));
-    Matrix *b = luaT_checkudata(L, 2, nerv_matrix_(tname));
-    Matrix *c;
-    if (!(a->nrow == b->nrow && a->ncol == b->ncol))
-        nerv_error(L, "Matrices should be of the same dimension");
-    c = nerv_matrix_(new_)(a->nrow, a->ncol);
-    nerv_matrix_(add_)(a, b, c, 1.0f, -1.0f);
-    luaT_pushudata(L, c, nerv_matrix_(tname));
-    return 1;
-}
-
-
 static int nerv_matrix_(mul)(lua_State *L) {
     Matrix *a = luaT_checkudata(L, 1, nerv_matrix_(tname));
     Matrix *b = luaT_checkudata(L, 2, nerv_matrix_(tname));
@@ -77,6 +66,13 @@ static int nerv_matrix_(mul)(lua_State *L) {
     return 1;
 }
 
+static int nerv_matrix_(create)(lua_State *L) {
+    Matrix *a = luaT_checkudata(L, 1, nerv_matrix_(tname));
+    Matrix *b = nerv_matrix_(new_)(a->nrow, a->ncol);
+    luaT_pushudata(L, b, nerv_matrix_(tname));
+    return 1;
+}
+
 static int nerv_matrix_(sigmoid)(lua_State *L) {
     Matrix *a = luaT_checkudata(L, 1, nerv_matrix_(tname));
     Matrix *b = nerv_matrix_(new_)(a->nrow, a->ncol);
@@ -114,9 +110,9 @@ static int nerv_matrix_(colmax)(lua_State *L) {
 }
 
 static const luaL_Reg nerv_matrix_(extra_methods)[] = {
-    {"__add__", nerv_matrix_(add)},
-    {"__sub__", nerv_matrix_(sub)},
-    {"__mul__", nerv_matrix_(mul)},
+    {"add", nerv_matrix_(add)},
+    {"mul", nerv_matrix_(mul)},
+    {"create", nerv_matrix_(create)},
     {"sigmoid", nerv_matrix_(sigmoid)},
     {"softmax", nerv_matrix_(softmax)},
     {"colsum", nerv_matrix_(colsum)},
diff --git a/matrix/generic/matrix.c b/matrix/generic/matrix.c
index f0f81a9..b06ed89 100644
--- a/matrix/generic/matrix.c
+++ b/matrix/generic/matrix.c
@@ -2,8 +2,8 @@
 #include "../../common.h"
 #include "matrix.h"
 
-extern const char *nerv_matrix_tname;
 extern const char *nerv_matrix_(tname);
+extern const char *MATRIX_BASE_TNAME;
 
 void nerv_matrix_(data_free)(Matrix *self) {
     if (--(*self->data_ref) == 0)
@@ -29,7 +29,7 @@ Matrix *nerv_matrix_(new_)(long nrow, long ncol) {
 
 int nerv_matrix_(new)(lua_State *L) {
     luaT_pushudata(L, nerv_matrix_(new_)(luaL_checkinteger(L, 1),
-                                                luaL_checkinteger(L, 2)),
+                                        luaL_checkinteger(L, 2)),
                     nerv_matrix_(tname));
     return 1;
 }
@@ -132,7 +132,7 @@ static const luaL_Reg nerv_matrix_(methods)[] = {
 };
 
 void nerv_matrix_(init)(lua_State *L) {
-    luaT_newmetatable(L, nerv_matrix_(tname), nerv_matrix_tname,
+    luaT_newmetatable(L, nerv_matrix_(tname), MATRIX_BASE_TNAME,
                         nerv_matrix_(new), nerv_matrix_(destroy), NULL);
     luaL_register(L, NULL, nerv_matrix_(methods));
 #ifdef MATRIX_INIT
diff --git a/matrix/generic/mmatrix.c b/matrix/generic/mmatrix.c
index e981ffc..c301e23 100644
--- a/matrix/generic/mmatrix.c
+++ b/matrix/generic/mmatrix.c
@@ -7,6 +7,7 @@
 #define MATRIX_DATA_STRIDE(ncol) (sizeof(MATRIX_ELEM) * (ncol))
 #define MATRIX_DATA_WRITE(data, idx, val) (data[idx] = val)
 #define MATRIX_DATA_READ(data, idx) (data[idx])
+#define MATRIX_BASE_TNAME nerv_matrix_host_tname
 #define NERV_GENERIC_MATRIX
 #include "../../common.h"