Subversion Repositories HelenOS-historic

Compare Revisions

Ignore whitespace Rev 265 → Rev 266

/SPARTAN/trunk/test/print/print1/test.c
31,6 → 31,7
void test(void)
{
__u64 u64const = 0x0123456789ABCDEFLL;
double d;
printf(" Printf test \n");
printf(" Q %Q %q \n",u64const, u64const);
printf(" L %L %l \n",0x01234567 ,0x01234567);
47,5 → 48,11
printf(" E %.10E %.8e (-987654321.123456789e12 for precision 10 & 8)\n",-987654321.123456789e12,-987654321.123456789e12);
printf(" E %.10E %.8e (123456789.987654321e12 for precision 10 & 8)\n",123456789.987654321e12,123456789.987654321e12);
printf(" E %.10E %.8e (987654321.123456789e12 for precision 10 & 8)\n",987654321.123456789e12,987654321.123456789e12);
u64const =0x7fffffffffffffffLL;
d =*((double *)((void *)(&u64const)));
printf(" E %.10E (NaN)\n",d);
u64const =(0xfff0000000000000LL);
d =*(double *)(void *)(&u64const);
printf(" E %.10E (-Inf)\n",d);
return;
}
/SPARTAN/trunk/src/debug/print.c
49,19 → 49,23
unsigned char buf[DEFAULT_DOUBLE_BUFFER_SIZE];
unsigned long in1,in2;
/*
 
if (fmath_is_nan(num)) {
print_str("NaN");
return;
}
*/
if (fmath_is_negative(num)) {
if (num<0.0) {
putchar('-');
num=num*-1.0;
}
num=fmath_abs(num);
 
 
if (fmath_is_infinity(num)) {
print_str("Inf");
return;
}
 
if ((modifier=='E')||(modifier=='e')) {
intval2=fmath_fint(fmath_get_decimal_exponent(num),&intval);
exponent=intval;
78,12 → 82,6
return;
}
 
/*
if (fmath_is_infinity(num)) {
print_str("Inf");
}
*/
//TODO: rounding constant - when we got fraction >= 0.5, we must increment last printed number
 
/* Here is problem with cumulative error while printing big double values -> we will divide
/SPARTAN/trunk/arch/ppc/include/fmath.h
34,9 → 34,6
typedef union { double bf; unsigned char ldd[8]; } fmath_ld_union_t;
 
int fmath_is_negative(double num);
//int fmath_is_exponent_negative(double num);
 
/**returns exponent in binary encoding*/
signed short fmath_get_binary_exponent(double num);
 
53,11 → 50,6
*/
double fmath_fint(double num, double *intp);
 
/** Return absolute value from num */
double fmath_abs(double num);
 
double fmath_set_sign(double num,__u8 sign);
 
/** count base^exponent from positive exponent
* @param base
* @param exponent - Must be > 0.0
65,3 → 57,8
*/
double fmath_dpow(double base, double exponent) ;
 
/** return 1, if num is NaN */
int fmath_is_nan(double num);
 
/** return 1, if fmath is a infinity */
int fmath_is_infinity(double num);
/SPARTAN/trunk/arch/ppc/src/fmath.c
32,15 → 32,6
//TODO:
#define FMATH_MANTISA_MASK ( 0x000fffffffffffffLL )
 
int fmath_is_negative(double num)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
return ((fmath_ld_union.ldd[7])&0x80)==0x80; //first bit is sign, IA32 is little endian -> 8th byte
*/
return 0;
}
 
signed short fmath_get_binary_exponent(double num)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
116,23 → 107,7
return 0.0;
};
double fmath_set_sign(double num,__u8 sign)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
fmath_ld_union.ldd[7]=((fmath_ld_union.ldd[7])&0x7f)|(sign<<7); // change 64th bit (IA32 is a little endian)
return fmath_ld_union.bf;
*/ return 1.0;
}
 
double fmath_abs(double num)
{ //TODO:
/*
return fmath_set_sign(num,0);
*/
return 1.0;
}
 
double fmath_dpow(double base, double exponent)
{ //TODO:
/* double value=1.0;
157,3 → 132,30
return 1.0;
}
 
 
int fmath_is_nan(double num)
{
/* __u16 exp;
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
exp=(((fmath_ld_union.ldd[7])&0x7f)<<4) + (((fmath_ld_union.ldd[6])&0xf0)>>4); // exponent is 11 bits lenght, so sevent bits is in 8th byte and 4 bits in 7th
 
if (exp!=0x07ff) return 0;
if (fmath_get_binary_mantisa(num)>=FMATH_NAN) return 1;
*/
return 0;
}
 
int fmath_is_infinity(double num)
{
/* __u16 exp;
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
exp=(((fmath_ld_union.ldd[7])&0x7f)<<4) + (((fmath_ld_union.ldd[6])&0xf0)>>4); // exponent is 11 bits lenght, so sevent bits is in 8th byte and 4 bits in 7th
 
if (exp!=0x07ff) return 0;
if (fmath_get_binary_mantisa(num)==0x0) return 1;
*/ return 0;
}
 
/SPARTAN/trunk/arch/ia64/include/fmath.h
34,9 → 34,6
typedef union { double bf; unsigned char ldd[8]; } fmath_ld_union_t;
 
int fmath_is_negative(double num);
//int fmath_is_exponent_negative(double num);
 
/**returns exponent in binary encoding*/
signed short fmath_get_binary_exponent(double num);
 
53,11 → 50,6
*/
double fmath_fint(double num, double *intp);
 
/** Return absolute value from num */
double fmath_abs(double num);
 
double fmath_set_sign(double num,__u8 sign);
 
/** count base^exponent from positive exponent
* @param base
* @param exponent - Must be > 0.0
65,3 → 57,8
*/
double fmath_dpow(double base, double exponent) ;
 
/** return 1, if num is NaN */
int fmath_is_nan(double num);
 
/** return 1, if fmath is a infinity */
int fmath_is_infinity(double num);
/SPARTAN/trunk/arch/ia64/src/fmath.c
32,15 → 32,6
//TODO:
#define FMATH_MANTISA_MASK ( 0x000fffffffffffffLL )
 
int fmath_is_negative(double num)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
return ((fmath_ld_union.ldd[7])&0x80)==0x80; //first bit is sign, IA32 is little endian -> 8th byte
*/
return 0;
}
 
signed short fmath_get_binary_exponent(double num)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
116,23 → 107,7
return 0.0;
};
double fmath_set_sign(double num,__u8 sign)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
fmath_ld_union.ldd[7]=((fmath_ld_union.ldd[7])&0x7f)|(sign<<7); // change 64th bit (IA32 is a little endian)
return fmath_ld_union.bf;
*/ return 1.0;
}
 
double fmath_abs(double num)
{ //TODO:
/*
return fmath_set_sign(num,0);
*/
return 1.0;
}
 
double fmath_dpow(double base, double exponent)
{ //TODO:
/* double value=1.0;
157,3 → 132,30
return 1.0;
}
 
 
int fmath_is_nan(double num)
{
/* __u16 exp;
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
exp=(((fmath_ld_union.ldd[7])&0x7f)<<4) + (((fmath_ld_union.ldd[6])&0xf0)>>4); // exponent is 11 bits lenght, so sevent bits is in 8th byte and 4 bits in 7th
 
if (exp!=0x07ff) return 0;
if (fmath_get_binary_mantisa(num)>=FMATH_NAN) return 1;
*/
return 0;
}
 
int fmath_is_infinity(double num)
{
/* __u16 exp;
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
exp=(((fmath_ld_union.ldd[7])&0x7f)<<4) + (((fmath_ld_union.ldd[6])&0xf0)>>4); // exponent is 11 bits lenght, so sevent bits is in 8th byte and 4 bits in 7th
 
if (exp!=0x07ff) return 0;
if (fmath_get_binary_mantisa(num)==0x0) return 1;
*/ return 0;
}
 
/SPARTAN/trunk/arch/mips/include/fmath.h
34,9 → 34,6
typedef union { double bf; unsigned char ldd[8]; } fmath_ld_union_t;
 
int fmath_is_negative(double num);
//int fmath_is_exponent_negative(double num);
 
/**returns exponent in binary encoding*/
signed short fmath_get_binary_exponent(double num);
 
53,11 → 50,6
*/
double fmath_fint(double num, double *intp);
 
/** Return absolute value from num */
double fmath_abs(double num);
 
double fmath_set_sign(double num,__u8 sign);
 
/** count base^exponent from positive exponent
* @param base
* @param exponent - Must be > 0.0
65,3 → 57,8
*/
double fmath_dpow(double base, double exponent) ;
 
/** return 1, if num is NaN */
int fmath_is_nan(double num);
 
/** return 1, if fmath is a infinity */
int fmath_is_infinity(double num);
/SPARTAN/trunk/arch/mips/src/fmath.c
32,15 → 32,6
//TODO:
#define FMATH_MANTISA_MASK ( 0x000fffffffffffffLL )
 
int fmath_is_negative(double num)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
return ((fmath_ld_union.ldd[7])&0x80)==0x80; //first bit is sign, IA32 is little endian -> 8th byte
*/
return 0;
}
 
signed short fmath_get_binary_exponent(double num)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
116,23 → 107,7
return 0.0;
};
double fmath_set_sign(double num,__u8 sign)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
fmath_ld_union.ldd[7]=((fmath_ld_union.ldd[7])&0x7f)|(sign<<7); // change 64th bit (IA32 is a little endian)
return fmath_ld_union.bf;
*/ return 1.0;
}
 
double fmath_abs(double num)
{ //TODO:
/*
return fmath_set_sign(num,0);
*/
return 1.0;
}
 
double fmath_dpow(double base, double exponent)
{ //TODO:
/* double value=1.0;
157,3 → 132,30
return 1.0;
}
 
 
int fmath_is_nan(double num)
{
/* __u16 exp;
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
exp=(((fmath_ld_union.ldd[7])&0x7f)<<4) + (((fmath_ld_union.ldd[6])&0xf0)>>4); // exponent is 11 bits lenght, so sevent bits is in 8th byte and 4 bits in 7th
 
if (exp!=0x07ff) return 0;
if (fmath_get_binary_mantisa(num)>=FMATH_NAN) return 1;
*/
return 0;
}
 
int fmath_is_infinity(double num)
{
/* __u16 exp;
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
exp=(((fmath_ld_union.ldd[7])&0x7f)<<4) + (((fmath_ld_union.ldd[6])&0xf0)>>4); // exponent is 11 bits lenght, so sevent bits is in 8th byte and 4 bits in 7th
 
if (exp!=0x07ff) return 0;
if (fmath_get_binary_mantisa(num)==0x0) return 1;
*/ return 0;
}
 
/SPARTAN/trunk/arch/amd64/include/fmath.h
34,9 → 34,6
typedef union { double bf; unsigned char ldd[8]; } fmath_ld_union_t;
 
int fmath_is_negative(double num);
//int fmath_is_exponent_negative(double num);
 
/**returns exponent in binary encoding*/
signed short fmath_get_binary_exponent(double num);
 
53,11 → 50,6
*/
double fmath_fint(double num, double *intp);
 
/** Return absolute value from num */
double fmath_abs(double num);
 
double fmath_set_sign(double num,__u8 sign);
 
/** count base^exponent from positive exponent
* @param base
* @param exponent - Must be > 0.0
65,3 → 57,8
*/
double fmath_dpow(double base, double exponent) ;
 
/** return 1, if num is NaN */
int fmath_is_nan(double num);
 
/** return 1, if fmath is a infinity */
int fmath_is_infinity(double num);
/SPARTAN/trunk/arch/amd64/src/fmath.c
32,15 → 32,6
//TODO:
#define FMATH_MANTISA_MASK ( 0x000fffffffffffffLL )
 
int fmath_is_negative(double num)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
return ((fmath_ld_union.ldd[7])&0x80)==0x80; //first bit is sign, IA32 is little endian -> 8th byte
*/
return 0;
}
 
signed short fmath_get_binary_exponent(double num)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
116,23 → 107,7
return 0.0;
};
double fmath_set_sign(double num,__u8 sign)
{ //TODO:
/* fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
fmath_ld_union.ldd[7]=((fmath_ld_union.ldd[7])&0x7f)|(sign<<7); // change 64th bit (IA32 is a little endian)
return fmath_ld_union.bf;
*/ return 1.0;
}
 
double fmath_abs(double num)
{ //TODO:
/*
return fmath_set_sign(num,0);
*/
return 1.0;
}
 
double fmath_dpow(double base, double exponent)
{ //TODO:
/* double value=1.0;
157,3 → 132,30
return 1.0;
}
 
 
int fmath_is_nan(double num)
{
/* __u16 exp;
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
exp=(((fmath_ld_union.ldd[7])&0x7f)<<4) + (((fmath_ld_union.ldd[6])&0xf0)>>4); // exponent is 11 bits lenght, so sevent bits is in 8th byte and 4 bits in 7th
 
if (exp!=0x07ff) return 0;
if (fmath_get_binary_mantisa(num)>=FMATH_NAN) return 1;
*/
return 0;
}
 
int fmath_is_infinity(double num)
{
/* __u16 exp;
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
exp=(((fmath_ld_union.ldd[7])&0x7f)<<4) + (((fmath_ld_union.ldd[6])&0xf0)>>4); // exponent is 11 bits lenght, so sevent bits is in 8th byte and 4 bits in 7th
 
if (exp!=0x07ff) return 0;
if (fmath_get_binary_mantisa(num)==0x0) return 1;
*/ return 0;
}
 
/SPARTAN/trunk/arch/ia32/include/fmath.h
34,9 → 34,6
typedef union { double bf; unsigned char ldd[8]; } fmath_ld_union_t;
 
int fmath_is_negative(double num);
//int fmath_is_exponent_negative(double num);
 
/**returns exponent in binary encoding*/
signed short fmath_get_binary_exponent(double num);
 
53,11 → 50,6
*/
double fmath_fint(double num, double *intp);
 
/** Return absolute value from num */
double fmath_abs(double num);
 
double fmath_set_sign(double num,__u8 sign);
 
/** count base^exponent from positive exponent
* @param base
* @param exponent - Must be > 0.0
65,3 → 57,8
*/
double fmath_dpow(double base, double exponent) ;
 
/** return 1, if num is NaN */
int fmath_is_nan(double num);
 
/** return 1, if fmath is a infinity */
int fmath_is_infinity(double num);
/SPARTAN/trunk/arch/ia32/src/fmath.c
30,15 → 30,7
#include <print.h>
 
#define FMATH_MANTISA_MASK ( 0x000fffffffffffffLL )
 
int fmath_is_negative(double num)
{
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
return ((fmath_ld_union.ldd[7])&0x80)==0x80; /*first bit is sign, IA32 is little endian -> 8th byte*/
 
}
 
#define FMATH_NAN ( 0x0001000000000001LL )
signed short fmath_get_binary_exponent(double num)
{
fmath_ld_union_t fmath_ld_union;
77,7 → 69,6
if (exp<0) {
*intp = 0.0;
*intp = fmath_set_sign(0.0L,fmath_is_negative(num));
return num;
}
85,7 → 76,6
if (exp>51) {
*intp=num;
num=0.0;
num= fmath_set_sign(0.0L,fmath_is_negative(*intp));
return num;
}
106,19 → 96,7
return fmath_ld_union_num.bf-fmath_ld_union_int.bf;
};
double fmath_set_sign(double num,__u8 sign)
{
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
fmath_ld_union.ldd[7]=((fmath_ld_union.ldd[7])&0x7f)|(sign<<7); /* change 64th bit (IA32 is a little endian)*/
return fmath_ld_union.bf;
}
 
double fmath_abs(double num)
{
return fmath_set_sign(num,0);
}
 
double fmath_dpow(double base, double exponent)
{
double value=1.0;
141,3 → 119,28
return value;
}
 
int fmath_is_nan(double num)
{
__u16 exp;
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
exp=(((fmath_ld_union.ldd[7])&0x7f)<<4) + (((fmath_ld_union.ldd[6])&0xf0)>>4); /* exponent is 11 bits lenght, so sevent bits is in 8th byte and 4 bits in 7th */
 
if (exp!=0x07ff) return 0;
if (fmath_get_binary_mantisa(num)>=FMATH_NAN) return 1;
return 0;
}
 
int fmath_is_infinity(double num)
{
__u16 exp;
fmath_ld_union_t fmath_ld_union;
fmath_ld_union.bf = num;
exp=(((fmath_ld_union.ldd[7])&0x7f)<<4) + (((fmath_ld_union.ldd[6])&0xf0)>>4); /* exponent is 11 bits lenght, so sevent bits is in 8th byte and 4 bits in 7th */
 
if (exp!=0x07ff) return 0;
if (fmath_get_binary_mantisa(num)==0x0) return 1;
return 0;
}