* src/pic16/device.c (Pics16[]): added devices 18F2550, 18F4331,

[fw/sdcc] / device / lib / pic16 / libc / stdlib / calloc.c

diff --git a/device/lib/pic16/libc/stdlib/calloc.c b/device/lib/pic16/libc/stdlib/calloc.c
index dae2e2d39736e57338dc2106e6479ce4651fd555..d3be5799524d01e41c208009bcf5d39de2745501 100644 (file)
--- a/device/lib/pic16/libc/stdlib/calloc.c
+++ b/device/lib/pic16/libc/stdlib/calloc.c
@@ -1,31 +1,51 @@
 /*
- * malloc.c - dynamic memory allocation
+ * calloc.c - dynamic memory allocation
  *
  * written by Vangelis Rokas, 2004 (vrokas@otenet.gr)
  *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the
+ * Free Software Foundation; either version 2, or (at your option) any
+ * later version.
+ *  
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * 
+ * In other words, you are welcome to use, share and improve this program.
+ * You are forbidden to forbid anyone else to use, share and improve
+ * what you give them.   Help stamp out software-hoarding!  
+ *
+ * $Id$
  */
 
 #include <malloc.h>
 
-extern unsigned char _MALLOC_SPEC *_dynamicHeap;       /* pointer to heap */
+extern unsigned char _MALLOC_SPEC *heap;
 
-unsigned char _MALLOC_SPEC *calloc(unsigned char num)  //, unsigned char len)
+unsigned char _MALLOC_SPEC *calloc(unsigned char len)
 {
-  unsigned char len=num;
-  unsigned char total;
   unsigned char _MALLOC_SPEC *result, *ch;
 
-       total = num * len;
-       if(total > MAX_BLOCK_SIZE)return ((unsigned char _MALLOC_SPEC *)0);
-       result = ch = malloc( (char)(total) );
-       
-       if(result != 0) {
-               while(total) {
-                 total--;
-                 *ch = 0;
-                 ch++;
-                }
-        }
+    if(len >= MAX_BLOCK_SIZE)return ((unsigned char _MALLOC_SPEC *)0);
+    ch = malloc( len );
+    result = ch;
+
+    if(result != 0) {
+      while(len) {
+        len--;
+        *ch = 0;
+        *ch = 1;
+        ch++;
+        *ch = 0;
+        ch++;
+      }
+    }
   
   return (result);
 }