New HAL and SimpleMAC for STM32W108.

cpu/stm32w108/e_stdio/src/floatio.h

@@ -0,0 +1,32 @@
+/*
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ *	%W% (Berkeley) %G%
+ */
+
+/*
+ * Floating point scanf/printf (input/output) definitions.
+ */
+
+#ifdef _NO_LONGDBL
+/* 11-bit exponent (VAX G floating point) is 308 decimal digits */
+#define	MAXEXP		308
+#else  /* !_NO_LONGDBL */
+/* 15-bit exponent (Intel extended floating point) is 4932 decimal digits */
+#define MAXEXP          4932
+#endif /* !_NO_LONGDBL */
+/* 128 bit fraction takes up 39 decimal digits; max reasonable precision */
+#define	MAXFRACT	39