WebSVN – HelenOS – Diff – /uspace/trunk/softfloat/generic/softfloat.c


/*
 * Copyright (C) 2005 Josef Cejka
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#include<softfloat.h>
#include<sftypes.h>
 
#include<add.h>
#include<sub.h>
#include<mul.h>
#include<div.h>
 
#include<conversion.h>
#include<comparison.h>
#include<other.h>
 
#include<functions.h>
 
/* Arithmetic functions */
 
float __addsf3(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    if (fa.parts.sign != fb.parts.sign) {
        if (fa.parts.sign) {
            fa.parts.sign = 0;
            return subFloat32(fb, fa).f;
        };
        fb.parts.sign = 0;
        return subFloat32(fa, fb).f;
    }
    return addFloat32(fa, fb).f;
}
 
double __adddf3(double a, double b)
{
    float64 da, db;
    da.d = a;
    db.d = b;
    if (da.parts.sign != db.parts.sign) {
        if (da.parts.sign) {
            da.parts.sign = 0;
            return subFloat64(db, da).d;
        };
        db.parts.sign = 0;
        return subFloat64(da, db).d;
    }
    return addFloat64(da, db).d;
}
 
float __subsf3(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    if (fa.parts.sign != fb.parts.sign) {
        fb.parts.sign = !fb.parts.sign;
        return addFloat32(fa, fb).f;
    }
    return subFloat32(fa, fb).f;
}
 
double __subdf3(double a, double b)
{
    float64 da, db;
    da.d = a;
    db.d = b;
    if (da.parts.sign != db.parts.sign) {
        db.parts.sign = !db.parts.sign;
        return addFloat64(da, db).d;
    }
    return subFloat64(da, db).d;
}
 
float __mulsf3(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    return  mulFloat32(fa, fb).f;
}
 
double __muldf3(double a, double b)
{
    float64 da, db;
    da.d = a;
    db.d = b;
    return  mulFloat64(da, db).d;
}
 
float __divsf3(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    return  divFloat32(fa, fb).f;
}
 
double __divdf3(double a, double b)
{
    float64 da, db;
    da.d = a;
    db.d = b;
    return  divFloat64(da, db).d;
}
 
float __negsf2(float a)
{
    float32 fa;
    fa.f = a;
    fa.parts.sign = !fa.parts.sign;
    return fa.f;
}
 
double __negdf2(double a)
{
    float64 fa;
    fa.d = a;
    fa.parts.sign = !fa.parts.sign;
    return fa.d;
}
 
/* Conversion functions */
 
double __extendsfdf2(float a)
{
    float32 fa;
    fa.f = a;
    return convertFloat32ToFloat64(fa).d;
}
 
float __truncdfsf2(double a)
{
    float64 da;
    da.d = a;
    return convertFloat64ToFloat32(da).f;
}
 
int __fixsfsi(float a)
{
    float32 fa;
    fa.f = a;
   
    return float32_to_int(fa);
}
int __fixdfsi(double a)
{
    float64 da;
    da.d = a;
   
    return float64_to_int(da);
}
 
long __fixsfdi(float a)
{
    float32 fa;
    fa.f = a;
   
    return float32_to_long(fa);
}
long __fixdfdi(double a)
{
    float64 da;
    da.d = a;
   
    return float64_to_long(da);
}
 
long long __fixsfti(float a)
{
    float32 fa;
    fa.f = a;
   
    return float32_to_longlong(fa);
}
long long __fixdfti(double a)
{
    float64 da;
    da.d = a;
   
    return float64_to_longlong(da);
}
 
unsigned int __fixunssfsi(float a)
{
    float32 fa;
    fa.f = a;
   
    return float32_to_uint(fa);
}
unsigned int __fixunsdfsi(double a)
{
    float64 da;
    da.d = a;
   
    return float64_to_uint(da);
}
 
unsigned long __fixunssfdi(float a)
{
    float32 fa;
    fa.f = a;
   
    return float32_to_ulong(fa);
}
unsigned long __fixunsdfdi(double a)
{
    float64 da;
    da.d = a;
   
    return float64_to_ulong(da);
}
 
unsigned long long __fixunssfti(float a)
{
    float32 fa;
    fa.f = a;
   
    return float32_to_ulonglong(fa);
}
unsigned long long __fixunsdfti(double a)
{
    float64 da;
    da.d = a;
   
    return float64_to_ulonglong(da);
}
 
float __floatsisf(int i)
{
    float32 fa;
   
    fa = int_to_float32(i);
    return fa.f;
}
double __floatsidf(int i)
{
    float64 da;
   
    da = int_to_float64(i);
    return da.d;
}
 
float __floatdisf(long i)
{
    float32 fa;
   
    fa = long_to_float32(i);
    return fa.f;
}
double __floatdidf(long i)
{
    float64 da;
   
    da = long_to_float64(i);
    return da.d;
}
 
float __floattisf(long long i)
{
    float32 fa;
   
    fa = longlong_to_float32(i);
    return fa.f;
}
double __floattidf(long long i)
{
    float64 da;
   
    da = longlong_to_float64(i);
    return da.d;
}
 
float __floatunsisf(unsigned int i)
{
    float32 fa;
   
    fa = uint_to_float32(i);
    return fa.f;
}
double __floatunsidf(unsigned int i)
{
    float64 da;
   
    da = uint_to_float64(i);
    return da.d;
}
 
float __floatundisf(unsigned long i)
{
    float32 fa;
   
    fa = ulong_to_float32(i);
    return fa.f;
}
double __floatundidf(unsigned long i)
{
    float64 da;
   
    da = ulong_to_float64(i);
    return da.d;
}
 
float __floatuntisf(unsigned long long i)
{
    float32 fa;
   
    fa = ulonglong_to_float32(i);
    return fa.f;
}
double __floatuntidf(unsigned long long i)
{
    float64 da;
   
    da = ulonglong_to_float64(i);
    return da.d;
}
 
/* Comparison functions */
/* Comparison functions */
 
/* a<b .. -1
 * a=b ..  0
 * a>b ..  1
 * */
 
int __cmpsf2(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    if ( (isFloat32NaN(fa)) || (isFloat32NaN(fb)) ) {
        return 1; /* no special constant for unordered - maybe signaled? */
    };
 
   
    if (isFloat32eq(fa, fb)) {
        return 0;
    };
   
    if (isFloat32lt(fa, fb)) {
        return -1;
        };
    return 1;
}
 
int __unordsf2(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    return ( (isFloat32NaN(fa)) || (isFloat32NaN(fb)) );
}
 
/**
 * @return zero, if neither argument is a NaN and are equal
 * */
int __eqsf2(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    if ( (isFloat32NaN(fa)) || (isFloat32NaN(fb)) ) {
        /* TODO: sigNaNs*/
        return 1;
        };
    return isFloat32eq(fa, fb) - 1;
}
 
/* strange behavior, but it was in gcc documentation */
int __nesf2(float a, float b)
{
    return __eqsf2(a, b);
}
 
/* return value >= 0 if a>=b and neither is NaN */
int __gesf2(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    if ( (isFloat32NaN(fa)) || (isFloat32NaN(fb)) ) {
        /* TODO: sigNaNs*/
        return -1;
        };
   
    if (isFloat32eq(fa, fb)) {
        return 0;
    };
   
    if (isFloat32gt(fa, fb)) {
        return 1;
        };
   
    return -1;
}
 
/** Return negative value, if a<b and neither is NaN*/
int __ltsf2(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    if ( (isFloat32NaN(fa)) || (isFloat32NaN(fb)) ) {
        /* TODO: sigNaNs*/
        return 1;
        };
    if (isFloat32lt(fa, fb)) {
        return -1;
        };
    return 0;
}
 
/* return value <= 0 if a<=b and neither is NaN */
int __lesf2(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    if ( (isFloat32NaN(fa)) || (isFloat32NaN(fb)) ) {
        /* TODO: sigNaNs*/
        return 1;
        };
   
    if (isFloat32eq(fa, fb)) {
        return 0;
    };
   
    if (isFloat32lt(fa, fb)) {
        return -1;
        };
   
    return 1;
}
 
/** Return positive value, if a>b and neither is NaN*/
int __gtsf2(float a, float b)
{
    float32 fa, fb;
    fa.f = a;
    fb.f = b;
    if ( (isFloat32NaN(fa)) || (isFloat32NaN(fb)) ) {
        /* TODO: sigNaNs*/
        return -1;
        };
    if (isFloat32gt(fa, fb)) {
        return 1;
        };
    return 0;
}
 
/* Other functions */
 
float __powisf2(float a, int b)
{
/* TODO: */
    float32 fa;
    fa.binary = FLOAT32_NAN;
    return fa.f;
}
 
 

Rev 1031	Rev 1035
1	/*	1	/*
2	* Copyright (C) 2005 Josef Cejka	2	* Copyright (C) 2005 Josef Cejka
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	#include<softfloat.h>	29	#include<softfloat.h>
30	#include<sftypes.h>	30	#include<sftypes.h>
31		31
32	#include<add.h>	32	#include<add.h>
33	#include<sub.h>	33	#include<sub.h>
34	#include<mul.h>	34	#include<mul.h>
35	#include<div.h>	35	#include<div.h>
36		36
37	#include<conversion.h>	37	#include<conversion.h>
38	#include<comparison.h>	38	#include<comparison.h>
39	#include<other.h>	39	#include<other.h>
40		40
41	#include<functions.h>	41	#include<functions.h>
42		42
43	/* Arithmetic functions */	43	/* Arithmetic functions */
44		44
45	float __addsf3(float a, float b)	45	float __addsf3(float a, float b)
46	{	46	{
47	float32 fa, fb;	47	float32 fa, fb;
48	fa.f = a;	48	fa.f = a;
49	fb.f = b;	49	fb.f = b;
50	if (fa.parts.sign != fb.parts.sign) {	50	if (fa.parts.sign != fb.parts.sign) {
51	if (fa.parts.sign) {	51	if (fa.parts.sign) {
52	fa.parts.sign = 0;	52	fa.parts.sign = 0;
53	return subFloat32(fb, fa).f;	53	return subFloat32(fb, fa).f;
54	};	54	};
55	fb.parts.sign = 0;	55	fb.parts.sign = 0;
56	return subFloat32(fa, fb).f;	56	return subFloat32(fa, fb).f;
57	}	57	}
58	return addFloat32(fa, fb).f;	58	return addFloat32(fa, fb).f;
59	}	59	}
60		60
61	double __adddf3(double a, double b)	61	double __adddf3(double a, double b)
62	{	62	{
63	float64 da, db;	63	float64 da, db;
64	da.d = a;	64	da.d = a;
65	db.d = b;	65	db.d = b;
66	if (da.parts.sign != db.parts.sign) {	66	if (da.parts.sign != db.parts.sign) {
67	if (da.parts.sign) {	67	if (da.parts.sign) {
68	da.parts.sign = 0;	68	da.parts.sign = 0;
69	return subFloat64(db, da).d;	69	return subFloat64(db, da).d;
70	};	70	};
71	db.parts.sign = 0;	71	db.parts.sign = 0;
72	return subFloat64(da, db).d;	72	return subFloat64(da, db).d;
73	}	73	}
74	return addFloat64(da, db).d;	74	return addFloat64(da, db).d;
75	}	75	}
76		76
77	float __subsf3(float a, float b)	77	float __subsf3(float a, float b)
78	{	78	{
79	float32 fa, fb;	79	float32 fa, fb;
80	fa.f = a;	80	fa.f = a;
81	fb.f = b;	81	fb.f = b;
82	if (fa.parts.sign != fb.parts.sign) {	82	if (fa.parts.sign != fb.parts.sign) {
83	fb.parts.sign = !fb.parts.sign;	83	fb.parts.sign = !fb.parts.sign;
84	return addFloat32(fa, fb).f;	84	return addFloat32(fa, fb).f;
85	}	85	}
86	return subFloat32(fa, fb).f;	86	return subFloat32(fa, fb).f;
87	}	87	}
88		88
89	double __subdf3(double a, double b)	89	double __subdf3(double a, double b)
90	{	90	{
91	float64 da, db;	91	float64 da, db;
92	da.d = a;	92	da.d = a;
93	db.d = b;	93	db.d = b;
94	if (da.parts.sign != db.parts.sign) {	94	if (da.parts.sign != db.parts.sign) {
95	db.parts.sign = !db.parts.sign;	95	db.parts.sign = !db.parts.sign;
96	return addFloat64(da, db).d;	96	return addFloat64(da, db).d;
97	}	97	}
98	return subFloat64(da, db).d;	98	return subFloat64(da, db).d;
99	}	99	}
100		100
101	float __mulsf3(float a, float b)	101	float __mulsf3(float a, float b)
102	{	102	{
103	float32 fa, fb;	103	float32 fa, fb;
104	fa.f = a;	104	fa.f = a;
105	fb.f = b;	105	fb.f = b;
106	return mulFloat32(fa, fb).f;	106	return mulFloat32(fa, fb).f;
107	}	107	}
108		108
109	double __muldf3(double a, double b)	109	double __muldf3(double a, double b)
110	{	110	{
111	float64 da, db;	111	float64 da, db;
112	da.d = a;	112	da.d = a;
113	db.d = b;	113	db.d = b;
114	return mulFloat64(da, db).d;	114	return mulFloat64(da, db).d;
115	}	115	}
116		116
117	float __divsf3(float a, float b)	117	float __divsf3(float a, float b)
118	{	118	{
119	float32 fa, fb;	119	float32 fa, fb;
120	fa.f = a;	120	fa.f = a;
121	fb.f = b;	121	fb.f = b;
122	return divFloat32(fa, fb).f;	122	return divFloat32(fa, fb).f;
123	}	123	}
124		124
125	double __divdf3(double a, double b)	125	double __divdf3(double a, double b)
126	{	126	{
127	float64 da, db;	127	float64 da, db;
128	da.d = a;	128	da.d = a;
129	db.d = b;	129	db.d = b;
130	return divFloat64(da, db).d;	130	return divFloat64(da, db).d;
131	}	131	}
132		132
133	float __negsf2(float a)	133	float __negsf2(float a)
134	{	134	{
135	float32 fa;	135	float32 fa;
136	fa.f = a;	136	fa.f = a;
137	fa.parts.sign = !fa.parts.sign;	137	fa.parts.sign = !fa.parts.sign;
138	return fa.f;	138	return fa.f;
139	}	139	}
140		140
141	double __negdf2(double a)	141	double __negdf2(double a)
142	{	142	{
143	float64 fa;	143	float64 fa;
144	fa.d = a;	144	fa.d = a;
145	fa.parts.sign = !fa.parts.sign;	145	fa.parts.sign = !fa.parts.sign;
146	return fa.d;	146	return fa.d;
147	}	147	}
148		148
149	/* Conversion functions */	149	/* Conversion functions */
150		150
151	double __extendsfdf2(float a)	151	double __extendsfdf2(float a)
152	{	152	{
153	float32 fa;	153	float32 fa;
154	fa.f = a;	154	fa.f = a;
155	return convertFloat32ToFloat64(fa).d;	155	return convertFloat32ToFloat64(fa).d;
156	}	156	}
157		157
158	float __truncdfsf2(double a)	158	float __truncdfsf2(double a)
159	{	159	{
160	float64 da;	160	float64 da;
161	da.d = a;	161	da.d = a;
162	return convertFloat64ToFloat32(da).f;	162	return convertFloat64ToFloat32(da).f;
163	}	163	}
164		164
165	int __fixsfsi(float a)	165	int __fixsfsi(float a)
166	{	166	{
167	float32 fa;	167	float32 fa;
168	fa.f = a;	168	fa.f = a;
169		169
170	return float32_to_int(fa);	170	return float32_to_int(fa);
171	}	171	}
172	int __fixdfsi(double a)	172	int __fixdfsi(double a)
173	{	173	{
174	float64 da;	174	float64 da;
175	da.d = a;	175	da.d = a;
176		176
177	return float64_to_int(da);	177	return float64_to_int(da);
178	}	178	}
179		179
180	long __fixsfdi(float a)	180	long __fixsfdi(float a)
181	{	181	{
182	float32 fa;	182	float32 fa;
183	fa.f = a;	183	fa.f = a;
184		184
185	return float32_to_long(fa);	185	return float32_to_long(fa);
186	}	186	}
187	long __fixdfdi(double a)	187	long __fixdfdi(double a)
188	{	188	{
189	float64 da;	189	float64 da;
190	da.d = a;	190	da.d = a;
191		191
192	return float64_to_long(da);	192	return float64_to_long(da);
193	}	193	}
194		194
195	long long __fixsfti(float a)	195	long long __fixsfti(float a)
196	{	196	{
197	float32 fa;	197	float32 fa;
198	fa.f = a;	198	fa.f = a;
199		199
200	return float32_to_longlong(fa);	200	return float32_to_longlong(fa);
201	}	201	}
202	long long __fixdfti(double a)	202	long long __fixdfti(double a)
203	{	203	{
204	float64 da;	204	float64 da;
205	da.d = a;	205	da.d = a;
206		206
207	return float64_to_longlong(da);	207	return float64_to_longlong(da);
208	}	208	}
209		209
210	unsigned int __fixunssfsi(float a)	210	unsigned int __fixunssfsi(float a)
211	{	211	{
212	float32 fa;	212	float32 fa;
213	fa.f = a;	213	fa.f = a;
214		214
215	return float32_to_uint(fa);	215	return float32_to_uint(fa);
216	}	216	}
217	unsigned int __fixunsdfsi(double a)	217	unsigned int __fixunsdfsi(double a)
218	{	218	{
219	float64 da;	219	float64 da;
220	da.d = a;	220	da.d = a;
221		221
222	return float64_to_uint(da);	222	return float64_to_uint(da);
223	}	223	}
224		224
225	unsigned long __fixunssfdi(float a)	225	unsigned long __fixunssfdi(float a)
226	{	226	{
227	float32 fa;	227	float32 fa;
228	fa.f = a;	228	fa.f = a;
229		229
230	return float32_to_ulong(fa);	230	return float32_to_ulong(fa);
231	}	231	}
232	unsigned long __fixunsdfdi(double a)	232	unsigned long __fixunsdfdi(double a)
233	{	233	{
234	float64 da;	234	float64 da;
235	da.d = a;	235	da.d = a;
236		236
237	return float64_to_ulong(da);	237	return float64_to_ulong(da);
238	}	238	}
239		239
240	unsigned long long __fixunssfti(float a)	240	unsigned long long __fixunssfti(float a)
241	{	241	{
242	float32 fa;	242	float32 fa;
243	fa.f = a;	243	fa.f = a;
244		244
245	return float32_to_ulonglong(fa);	245	return float32_to_ulonglong(fa);
246	}	246	}
247	unsigned long long __fixunsdfti(double a)	247	unsigned long long __fixunsdfti(double a)
248	{	248	{
249	float64 da;	249	float64 da;
250	da.d = a;	250	da.d = a;
251		251
252	return float64_to_ulonglong(da);	252	return float64_to_ulonglong(da);
253	}	253	}
254		254
255	float __floatsisf(int i)	255	float __floatsisf(int i)
256	{	256	{
257	float32 fa;	257	float32 fa;
258		258
259	fa = int_to_float32(i);	259	fa = int_to_float32(i);
260	return fa.f;	260	return fa.f;
261	}	261	}
262	double __floatsidf(int i)	262	double __floatsidf(int i)
263	{	263	{
264	float64 da;	264	float64 da;
265		265
266	da = int_to_float64(i);	266	da = int_to_float64(i);
267	return da.d;	267	return da.d;
268	}	268	}
269		269
270	float __floatdisf(long i)	270	float __floatdisf(long i)
271	{	271	{
272	float32 fa;	272	float32 fa;
273		273
274	fa = long_to_float32(i);	274	fa = long_to_float32(i);
275	return fa.f;	275	return fa.f;
276	}	276	}
277	double __floatdidf(long i)	277	double __floatdidf(long i)
278	{	278	{
279	float64 da;	279	float64 da;
280		280
281	da = long_to_float64(i);	281	da = long_to_float64(i);
282	return da.d;	282	return da.d;
283	}	283	}
284		284
285	float __floattisf(long long i)	285	float __floattisf(long long i)
286	{	286	{
287	float32 fa;	287	float32 fa;
288		288
289	fa = longlong_to_float32(i);	289	fa = longlong_to_float32(i);
290	return fa.f;	290	return fa.f;
291	}	291	}
292	double __floattidf(long long i)	292	double __floattidf(long long i)
293	{	293	{
294	float64 da;	294	float64 da;
295		295
296	da = longlong_to_float64(i);	296	da = longlong_to_float64(i);
297	return da.d;	297	return da.d;
298	}	298	}
299		299
300	float __floatunsisf(unsigned int i)	300	float __floatunsisf(unsigned int i)
301	{	301	{
302	float32 fa;	302	float32 fa;
303		303
304	fa = uint_to_float32(i);	304	fa = uint_to_float32(i);
305	return fa.f;	305	return fa.f;
306	}	306	}
307	double __floatunsidf(unsigned int i)	307	double __floatunsidf(unsigned int i)
308	{	308	{
309	float64 da;	309	float64 da;
310		310
311	da = uint_to_float64(i);	311	da = uint_to_float64(i);
312	return da.d;	312	return da.d;
313	}	313	}
314		314
315	float __floatundisf(unsigned long i)	315	float __floatundisf(unsigned long i)
316	{	316	{
317	float32 fa;	317	float32 fa;
318		318
319	fa = ulong_to_float32(i);	319	fa = ulong_to_float32(i);
320	return fa.f;	320	return fa.f;
321	}	321	}
322	double __floatundidf(unsigned long i)	322	double __floatundidf(unsigned long i)
323	{	323	{
324	float64 da;	324	float64 da;
325		325
326	da = ulong_to_float64(i);	326	da = ulong_to_float64(i);
327	return da.d;	327	return da.d;
328	}	328	}
329		329
330	float __floatuntisf(unsigned long long i)	330	float __floatuntisf(unsigned long long i)
331	{	331	{
332	float32 fa;	332	float32 fa;
333		333
334	fa = ulonglong_to_float32(i);	334	fa = ulonglong_to_float32(i);
335	return fa.f;	335	return fa.f;
336	}	336	}
337	double __floatuntidf(unsigned long long i)	337	double __floatuntidf(unsigned long long i)
338	{	338	{
339	float64 da;	339	float64 da;
340		340
341	da = ulonglong_to_float64(i);	341	da = ulonglong_to_float64(i);
342	return da.d;	342	return da.d;
343	}	343	}
344		344
345	/* Comparison functions */	345	/* Comparison functions */
346	/* Comparison functions */	346	/* Comparison functions */
347		347
348	/* a<b .. -1	348	/* a<b .. -1
349	* a=b .. 0	349	* a=b .. 0
350	* a>b .. 1	350	* a>b .. 1
351	* */	351	* */
352		352
353	int __cmpsf2(float a, float b)	353	int __cmpsf2(float a, float b)
354	{	354	{
355	float32 fa, fb;	355	float32 fa, fb;
356	fa.f = a;	356	fa.f = a;
357	fb.f = b;	357	fb.f = b;
358	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {	358	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {
359	return 1; /* no special constant for unordered - maybe signaled? */	359	return 1; /* no special constant for unordered - maybe signaled? */
360	};	360	};
361		361
362		362
363	if (isFloat32eq(fa, fb)) {	363	if (isFloat32eq(fa, fb)) {
364	return 0;	364	return 0;
365	};	365	};
366		366
367	if (isFloat32lt(fa, fb)) {	367	if (isFloat32lt(fa, fb)) {
368	return -1;	368	return -1;
369	};	369	};
370	return 1;	370	return 1;
371	}	371	}
372		372
373	int __unordsf2(float a, float b)	373	int __unordsf2(float a, float b)
374	{	374	{
375	float32 fa, fb;	375	float32 fa, fb;
376	fa.f = a;	376	fa.f = a;
377	fb.f = b;	377	fb.f = b;
378	return ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) );	378	return ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) );
379	}	379	}
380		380
381	/**	381	/**
382	* @return zero, if neither argument is a NaN and are equal	382	* @return zero, if neither argument is a NaN and are equal
383	* */	383	* */
384	int __eqsf2(float a, float b)	384	int __eqsf2(float a, float b)
385	{	385	{
386	float32 fa, fb;	386	float32 fa, fb;
387	fa.f = a;	387	fa.f = a;
388	fb.f = b;	388	fb.f = b;
389	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {	389	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {
390	/* TODO: sigNaNs*/	390	/* TODO: sigNaNs*/
391	return 1;	391	return 1;
392	};	392	};
393	return isFloat32eq(fa, fb) - 1;	393	return isFloat32eq(fa, fb) - 1;
394	}	394	}
395		395
396	/* strange behavior, but it was in gcc documentation */	396	/* strange behavior, but it was in gcc documentation */
397	int __nesf2(float a, float b)	397	int __nesf2(float a, float b)
398	{	398	{
399	return __eqsf2(a, b);	399	return __eqsf2(a, b);
400	}	400	}
401		401
402	/* return value >= 0 if a>=b and neither is NaN */	402	/* return value >= 0 if a>=b and neither is NaN */
403	int __gesf2(float a, float b)	403	int __gesf2(float a, float b)
404	{	404	{
405	float32 fa, fb;	405	float32 fa, fb;
406	fa.f = a;	406	fa.f = a;
407	fb.f = b;	407	fb.f = b;
408	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {	408	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {
409	/* TODO: sigNaNs*/	409	/* TODO: sigNaNs*/
410	return -1;	410	return -1;
411	};	411	};
412		412
413	if (isFloat32eq(fa, fb)) {	413	if (isFloat32eq(fa, fb)) {
414	return 0;	414	return 0;
415	};	415	};
416		416
417	if (isFloat32gt(fa, fb)) {	417	if (isFloat32gt(fa, fb)) {
418	return 1;	418	return 1;
419	};	419	};
420		420
421	return -1;	421	return -1;
422	}	422	}
423		423
424	/** Return negative value, if a<b and neither is NaN*/	424	/** Return negative value, if a<b and neither is NaN*/
425	int __ltsf2(float a, float b)	425	int __ltsf2(float a, float b)
426	{	426	{
427	float32 fa, fb;	427	float32 fa, fb;
428	fa.f = a;	428	fa.f = a;
429	fb.f = b;	429	fb.f = b;
430	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {	430	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {
431	/* TODO: sigNaNs*/	431	/* TODO: sigNaNs*/
432	return 1;	432	return 1;
433	};	433	};
434	if (isFloat32lt(fa, fb)) {	434	if (isFloat32lt(fa, fb)) {
435	return -1;	435	return -1;
436	};	436	};
437	return 0;	437	return 0;
438	}	438	}
439		439
440	/* return value <= 0 if a<=b and neither is NaN */	440	/* return value <= 0 if a<=b and neither is NaN */
441	int __lesf2(float a, float b)	441	int __lesf2(float a, float b)
442	{	442	{
443	float32 fa, fb;	443	float32 fa, fb;
444	fa.f = a;	444	fa.f = a;
445	fb.f = b;	445	fb.f = b;
446	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {	446	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {
447	/* TODO: sigNaNs*/	447	/* TODO: sigNaNs*/
448	return 1;	448	return 1;
449	};	449	};
450		450
451	if (isFloat32eq(fa, fb)) {	451	if (isFloat32eq(fa, fb)) {
452	return 0;	452	return 0;
453	};	453	};
454		454
455	if (isFloat32lt(fa, fb)) {	455	if (isFloat32lt(fa, fb)) {
456	return -1;	456	return -1;
457	};	457	};
458		458
459	return 1;	459	return 1;
460	}	460	}
461		461
462	/** Return positive value, if a>b and neither is NaN*/	462	/** Return positive value, if a>b and neither is NaN*/
463	int __gtsf2(float a, float b)	463	int __gtsf2(float a, float b)
464	{	464	{
465	float32 fa, fb;	465	float32 fa, fb;
466	fa.f = a;	466	fa.f = a;
467	fb.f = b;	467	fb.f = b;
468	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {	468	if ( (isFloat32NaN(fa)) \|\| (isFloat32NaN(fb)) ) {
469	/* TODO: sigNaNs*/	469	/* TODO: sigNaNs*/
470	return -1;	470	return -1;
471	};	471	};
472	if (isFloat32gt(fa, fb)) {	472	if (isFloat32gt(fa, fb)) {
473	return 1;	473	return 1;
474	};	474	};
475	return 0;	475	return 0;
476	}	476	}
477		477
478	/* Other functions */	478	/* Other functions */
479		479
480	float __powisf2(float a, int b)	480	float __powisf2(float a, int b)
481	{	481	{
482	/* TODO: */	482	/* TODO: */
-		483	float32 fa;
-		484	fa.binary = FLOAT32_NAN;
-		485	return fa.f;
483	}	486	}
484		487
485		488

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(root)/uspace/trunk/softfloat/generic/softfloat.c @ 1657 – Rev 1031 → 1035