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gcc subdir for combined gcc/ack library build

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This commit is contained in:
Ben Gras
2005-10-10 15:28:15 +00:00
parent 8c53e4007e
commit 1da5b5ccee
20 changed files with 759 additions and 0 deletions
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51
lib/gnu/ieee_float/ieee_float.h Normal file
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/*
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 $
*/