sdcc-3.9.0 fork implementing GNU assembler syntax

This fork aims to provide better support for stm8-binutils

1 files changed, 52 insertions, 0 deletions

diff --git a/device/lib/atol.c b/device/lib/atol.c
new file mode 100644
index 0000000..3aa5161
--- /dev/null
+++ b/device/lib/atol.c
@@ -0,0 +1,52 @@
+/*---------------------------------------------------------------------
+   atol() - convert a string to a long integer and return it
+
+   Copyright (C) 2015, Philipp Klaus Krause . pkk@spth.de
+
+   This library 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 library 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 library; see the file COPYING. If not, write to the
+   Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston,
+   MA 02110-1301, USA.
+
+   As a special exception, if you link this library with other files,
+   some of which are compiled with SDCC, to produce an executable,
+   this library does not by itself cause the resulting executable to
+   be covered by the GNU General Public License. This exception does
+   not however invalidate any other reasons why the executable file
+   might be covered by the GNU General Public License.
+-------------------------------------------------------------------------*/
+
+#include <stdlib.h>
+
+#include <ctype.h>
+#include <stdbool.h>
+
+long int atol(const char *nptr)
+{
+  long int ret = 0;
+  bool neg;
+
+  while (isblank (*nptr))
+    nptr++;
+
+  neg = (*nptr == '-');
+
+  if (*nptr == '-' || *nptr == '+')
+    nptr++;
+
+  while (isdigit (*nptr))
+    ret = ret * 10 + (*(nptr++) - '0');
+
+  return (neg ? -ret : ret); // Since -LONG_MIN is LONG_MIN in sdcc, the result value always turns out ok.
+}
+