Incorporate bsdmake into buildsystem and reorganize libs

2010-02-16 14:41:33 +00:00
parent 6686e9ae9f
commit b706112487
1513 changed files with 8094 additions and 26613 deletions
@@ -0,0 +1,51 @@
+/*
+libc/ieee_float/ieee_float.h
+
+Created:	Oct 14, 1993 by Philip Homburg <philip@cs.vu.nl>
+
+Define structures and macros for manipulating IEEE floats
+*/
+
+#ifndef IEEE_FLOAT_H
+#define IEEE_FLOAT_H
+
+#define isnan __IsNan
+
+struct f64
+{
+	u32_t low_word;
+	u32_t high_word;
+};
+
+#define F64_SIGN_SHIFT	31
+#define F64_SIGN_MASK	1
+
+#define F64_EXP_SHIFT	20
+#define F64_EXP_MASK	0x7ff
+#define F64_EXP_BIAS	1023
+#define F64_EXP_MAX	2047
+
+#define F64_MANT_SHIFT	0
+#define F64_MANT_MASK	0xfffff
+
+#define F64_GET_SIGN(fp)	(((fp)->high_word >> F64_SIGN_SHIFT) & \
+					F64_SIGN_MASK)
+#define F64_GET_EXP(fp)		(((fp)->high_word >> F64_EXP_SHIFT) & \
+					F64_EXP_MASK)
+#define F64_SET_EXP(fp, val)	((fp)->high_word= ((fp)->high_word &	\
+				~(F64_EXP_MASK << F64_EXP_SHIFT)) | 	\
+				(((val) & F64_EXP_MASK) << F64_EXP_SHIFT))
+
+#define F64_GET_MANT_LOW(fp)		((fp)->low_word)
+#define F64_SET_MANT_LOW(fp, val)	((fp)->low_word= (val))
+#define F64_GET_MANT_HIGH(fp)	(((fp)->high_word >> F64_MANT_SHIFT) & \
+					F64_MANT_MASK)
+#define F64_SET_MANT_HIGH(fp, val)	((fp)->high_word= ((fp)->high_word & \
+				~(F64_MANT_MASK << F64_MANT_SHIFT)) |	\
+				(((val) & F64_MANT_MASK) << F64_MANT_SHIFT))
+
+#endif /* IEEE_FLOAT_H */
+
+/*
+ * $PchId: ieee_float.h,v 1.3 1996/02/22 21:01:39 philip Exp $
+ */