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/lk-master/external/lib/libm/
A De_sqrtf.c55 if (ix<=0) { in __ieee754_sqrtf()
61 m = (ix>>23); in __ieee754_sqrtf()
63 for (i=0; (ix&0x00800000)==0; i++) ix<<=1; in __ieee754_sqrtf()
67 ix = (ix&0x007fffff)|0x00800000; in __ieee754_sqrtf()
69 ix += ix; in __ieee754_sqrtf()
73 ix += ix; in __ieee754_sqrtf()
79 if (t<=ix) { in __ieee754_sqrtf()
81 ix -= t; in __ieee754_sqrtf()
84 ix += ix; in __ieee754_sqrtf()
89 if (ix!=0) { in __ieee754_sqrtf()
[all …]
A Ds_tanf.c40 int32_t n, hx, ix; in tanf() local
43 ix = hx & 0x7fffffff; in tanf()
45 if (ix <= 0x3f490fda) { /* |x| ~<= pi/4 */ in tanf()
46 if (ix<0x39800000) /* |x| < 2**-12 */ in tanf()
50 if (ix<=0x407b53d1) { /* |x| ~<= 5*pi/4 */ in tanf()
51 if (ix<=0x4016cbe3) /* |x| ~<= 3pi/4 */ in tanf()
56 if (ix<=0x40e231d5) { /* |x| ~<= 9*pi/4 */ in tanf()
57 if (ix<=0x40afeddf) /* |x| ~<= 7*pi/4 */ in tanf()
64 else if (ix>=0x7f800000) return x-x; in tanf()
A Ds_cosf.c42 int32_t n, hx, ix; in cosf() local
45 ix = hx & 0x7fffffff; in cosf()
47 if (ix <= 0x3f490fda) { /* |x| ~<= pi/4 */ in cosf()
48 if (ix<0x39800000) /* |x| < 2**-12 */ in cosf()
52 if (ix<=0x407b53d1) { /* |x| ~<= 5*pi/4 */ in cosf()
53 if (ix>0x4016cbe3) /* |x| ~> 3*pi/4 */ in cosf()
62 if (ix<=0x40e231d5) { /* |x| ~<= 9*pi/4 */ in cosf()
63 if (ix>0x40afeddf) /* |x| ~> 7*pi/4 */ in cosf()
74 else if (ix>=0x7f800000) return x-x; in cosf()
A Ds_sinf.c42 int32_t n, hx, ix; in sinf() local
45 ix = hx & 0x7fffffff; in sinf()
47 if (ix <= 0x3f490fda) { /* |x| ~<= pi/4 */ in sinf()
48 if (ix<0x39800000) /* |x| < 2**-12 */ in sinf()
52 if (ix<=0x407b53d1) { /* |x| ~<= 5*pi/4 */ in sinf()
53 if (ix<=0x4016cbe3) { /* |x| ~<= 3pi/4 */ in sinf()
61 if (ix<=0x40e231d5) { /* |x| ~<= 9*pi/4 */ in sinf()
62 if (ix<=0x40afeddf) { /* |x| ~<= 7*pi/4 */ in sinf()
72 else if (ix>=0x7f800000) return x-x; in sinf()
A Ds_scalbnf.c30 int32_t k,ix; in scalbnf() local
31 GET_FLOAT_WORD(ix,x); in scalbnf()
32 k = (ix&0x7f800000)>>23; /* extract exponent */ in scalbnf()
34 if ((ix&0x7fffffff)==0) return x; /* +-0 */ in scalbnf()
36 GET_FLOAT_WORD(ix,x); in scalbnf()
37 k = ((ix&0x7f800000)>>23) - 25; in scalbnf()
44 {SET_FLOAT_WORD(x,(ix&0x807fffff)|(k<<23)); return x;} in scalbnf()
51 SET_FLOAT_WORD(x,(ix&0x807fffff)|(k<<23)); in scalbnf()
A Ds_atan.c77 int32_t ix,hx,id; in atan() local
80 ix = hx&0x7fffffff; in atan()
81 if(ix>=0x44100000) { /* if |x| >= 2^66 */ in atan()
84 if(ix>0x7ff00000|| in atan()
85 (ix==0x7ff00000&&(low!=0))) in atan()
89 } if (ix < 0x3fdc0000) { /* |x| < 0.4375 */ in atan()
90 if (ix < 0x3e400000) { /* |x| < 2^-27 */ in atan()
96 if (ix < 0x3ff30000) { /* |x| < 1.1875 */ in atan()
97 if (ix < 0x3fe60000) { /* 7/16 <=|x|<11/16 */ in atan()
103 if (ix < 0x40038000) { /* |x| < 2.4375 */ in atan()
A De_rem_pio2.c59 int32_t e0,i,j,nx,n,ix,hx; in __ieee754_rem_pio2() local
63 ix = hx&0x7fffffff; in __ieee754_rem_pio2()
68 if (ix <= 0x400f6a7a) { /* |x| ~<= 5pi/4 */ in __ieee754_rem_pio2()
71 if (ix <= 0x4002d97c) { /* |x| ~<= 3pi/4 */ in __ieee754_rem_pio2()
97 if (ix <= 0x401c463b) { /* |x| ~<= 9pi/4 */ in __ieee754_rem_pio2()
98 if (ix <= 0x4015fdbc) { /* |x| ~<= 7pi/4 */ in __ieee754_rem_pio2()
99 if (ix == 0x4012d97c) /* |x| ~= 3pi/2 */ in __ieee754_rem_pio2()
142 j = ix>>20; in __ieee754_rem_pio2()
169 if (ix>=0x7ff00000) { /* x is inf or NaN */ in __ieee754_rem_pio2()
175 e0 = (ix>>20)-1046; /* e0 = ilogb(z)-23; */ in __ieee754_rem_pio2()
[all …]
A De_pow.c103 int32_t hx,hy,ix,iy; in __ieee754_pow() local
108 ix = hx&0x7fffffff; iy = hy&0x7fffffff; in __ieee754_pow()
114 if(ix > 0x7ff00000 || ((ix==0x7ff00000)&&(lx!=0)) || in __ieee754_pow()
141 if(((ix-0x3ff00000)|lx)==0) in __ieee754_pow()
161 if(ix==0x7ff00000||ix==0||ix==0x3ff00000){ in __ieee754_pow()
165 if(((ix-0x3ff00000)|yisint)==0) { in __ieee754_pow()
208 if(ix<0x00100000) in __ieee754_pow()
210 n += ((ix)>>20)-0x3ff; in __ieee754_pow()
211 j = ix&0x000fffff; in __ieee754_pow()
216 else {k=0;n+=1;ix -= 0x00100000;} in __ieee754_pow()
[all …]
A Ds_tan.c57 int32_t n, ix; in tan() local
60 GET_HIGH_WORD(ix,x); in tan()
63 ix &= 0x7fffffff; in tan()
64 if (ix <= 0x3fe921fb) { in tan()
65 if (ix<0x3e400000) /* x < 2**-27 */ in tan()
71 else if (ix>=0x7ff00000) return x-x; /* NaN */ in tan()
A De_powf.c62 int32_t hx,hy,ix,iy,is; in __ieee754_powf() local
66 ix = hx&0x7fffffff; iy = hy&0x7fffffff; in __ieee754_powf()
72 if(ix > 0x7f800000 || in __ieee754_powf()
93 if (ix==0x3f800000) in __ieee754_powf()
111 if(ix==0x7f800000||ix==0||ix==0x3f800000){ in __ieee754_powf()
115 if(((ix-0x3f800000)|yisint)==0) { in __ieee754_powf()
150 if(ix<0x00800000) in __ieee754_powf()
152 n += ((ix)>>23)-0x7f; in __ieee754_powf()
153 j = ix&0x007fffff; in __ieee754_powf()
158 else {k=0;n+=1;ix -= 0x00800000;} in __ieee754_powf()
[all …]
A Ds_cos.c58 int32_t n, ix; in cos() local
61 GET_HIGH_WORD(ix,x); in cos()
64 ix &= 0x7fffffff; in cos()
65 if (ix <= 0x3fe921fb) { in cos()
66 if (ix<0x3e46a09e) /* if x < 2**-27 * sqrt(2) */ in cos()
72 else if (ix>=0x7ff00000) return x-x; in cos()
A Ds_sin.c58 int32_t n, ix; in sin() local
61 GET_HIGH_WORD(ix,x); in sin()
64 ix &= 0x7fffffff; in sin()
65 if (ix <= 0x3fe921fb) { in sin()
66 if (ix<0x3e500000) /* |x| < 2**-26 */ in sin()
72 else if (ix>=0x7ff00000) return x-x; in sin()
A De_rem_pio2f.c52 int32_t e0,n,ix,hx; in __ieee754_rem_pio2f() local
55 ix = hx&0x7fffffff; in __ieee754_rem_pio2f()
57 if (ix<0x4dc90fdb) { /* |x| ~< 2^28*(pi/2), medium size */ in __ieee754_rem_pio2f()
74 if (ix>=0x7f800000) { /* x is inf or NaN */ in __ieee754_rem_pio2f()
79 e0 = (ix>>23)-150; /* e0 = ilogb(|x|)-23; */ in __ieee754_rem_pio2f()
80 SET_FLOAT_WORD(z, ix - ((int32_t)(e0<<23))); in __ieee754_rem_pio2f()
A De_fmod.c31 int32_t n,hx,hy,hz,ix,iy,sx,i; in __ieee754_fmod() local
53 for (ix = -1043, i=lx; i>0; i<<=1) ix -=1; in __ieee754_fmod()
55 for (ix = -1022,i=(hx<<11); i>0; i<<=1) ix -=1; in __ieee754_fmod()
57 } else ix = (hx>>20)-1023; in __ieee754_fmod()
69 if(ix >= -1022) in __ieee754_fmod()
72 n = -1022-ix; in __ieee754_fmod()
95 n = ix - iy; in __ieee754_fmod()
A De_asin.c74 int32_t hx,ix; in __ieee754_asin() local
76 ix = hx&0x7fffffff; in __ieee754_asin()
77 if(ix>= 0x3ff00000) { /* |x|>= 1 */ in __ieee754_asin()
80 if(((ix-0x3ff00000)|lx)==0) in __ieee754_asin()
84 } else if (ix<0x3fe00000) { /* |x|<0.5 */ in __ieee754_asin()
85 if(ix<0x3e400000) { /* if |x| < 2**-27 */ in __ieee754_asin()
100 if(ix>=0x3FEF3333) { /* if |x| > 0.975 */ in __ieee754_asin()
A De_asinf.c45 int32_t hx,ix; in __ieee754_asinf() local
47 ix = hx&0x7fffffff; in __ieee754_asinf()
48 if(ix==0x3f800000) { in __ieee754_asinf()
51 } else if(ix> 0x3f800000) { /* |x|>= 1 */ in __ieee754_asinf()
53 } else if (ix<0x3f000000) { /* |x|<0.5 */ in __ieee754_asinf()
54 if(ix<0x32000000) { /* if |x| < 2**-27 */ in __ieee754_asinf()
69 if(ix>=0x3F79999A) { /* if |x| > 0.975 */ in __ieee754_asinf()
A De_atan2.c64 int32_t k,m,hx,hy,ix,iy; in __ieee754_atan2() local
68 ix = hx&0x7fffffff; in __ieee754_atan2()
71 if(((ix|((lx|-lx)>>31))>0x7ff00000)|| in __ieee754_atan2()
87 if((ix|lx)==0) return (hy<0)? -pi_o_2-tiny: pi_o_2+tiny; in __ieee754_atan2()
90 if(ix==0x7ff00000) { in __ieee754_atan2()
111 k = (iy-ix)>>20; in __ieee754_atan2()
A De_acos.c65 int32_t hx,ix; in __ieee754_acos() local
67 ix = hx&0x7fffffff; in __ieee754_acos()
68 if(ix>=0x3ff00000) { /* |x| >= 1 */ in __ieee754_acos()
71 if(((ix-0x3ff00000)|lx)==0) { /* |x|==1 */ in __ieee754_acos()
77 if(ix<0x3fe00000) { /* |x| < 0.5 */ in __ieee754_acos()
78 if(ix<=0x3c600000) return pio2_hi+pio2_lo;/*if|x|<2**-57*/ in __ieee754_acos()
A De_acosf.c43 int32_t hx,ix; in __ieee754_acosf() local
45 ix = hx&0x7fffffff; in __ieee754_acosf()
46 if(ix==0x3f800000) { /* |x|==1 */ in __ieee754_acosf()
49 } else if(ix>0x3f800000) { /* |x| >= 1 */ in __ieee754_acosf()
52 if(ix<0x3f000000) { /* |x| < 0.5 */ in __ieee754_acosf()
53 if(ix<=0x23000000) return pio2_hi+pio2_lo;/*if|x|<2**-57*/ in __ieee754_acosf()
A Ds_fabsf.c30 u_int32_t ix; in fabsf() local
31 GET_FLOAT_WORD(ix,x); in fabsf()
32 SET_FLOAT_WORD(x,ix&0x7fffffff); in fabsf()
A Ds_copysignf.c30 u_int32_t ix,iy; in copysignf() local
31 GET_FLOAT_WORD(ix,x); in copysignf()
33 SET_FLOAT_WORD(x,(ix&0x7fffffff)|(iy&0x80000000)); in copysignf()
A Dk_tan.c82 int32_t ix, hx; in __kernel_tan() local
85 ix = hx & 0x7fffffff; /* high word of |x| */ in __kernel_tan()
86 if (ix >= 0x3FE59428) { /* |x| >= 0.6744 */ in __kernel_tan()
111 if (ix >= 0x3FE59428) { in __kernel_tan()
/lk-master/external/platform/pico/rp2_common/pico_float/
A Dfloat_math.c41 ui32 ix=*(i32*)&x; in fisnan() local
82 ix=((ix&0x7fffffff)|(iy&0x80000000)); in fcopysign()
121 return (ix>>e)&1; in fisoddint()
127 return ix>>31; in fisstrictneg()
132 return ix>>31; in fisneg()
137 ix^=0x80000000; in fneg()
145 ix&=0x007fffff; in fispo2()
146 return ix==0; in fispo2()
169 ix&=~m; in WRAPPER_FUNC()
190 ix+=m; in WRAPPER_FUNC()
[all …]
/lk-master/external/platform/pico/rp2_common/pico_double/
A Ddouble_math.c43 ui64 ix=*(i64*)&x; in disnan() local
57 ui64 ix=*(ui64*)&x; in dgetsignexp() local
62 ui64 ix=*(ui64*)&x; in dgetexp() local
86 ix=((ix&0x7fffffffffffffffULL)|(iy&0x8000000000000000ULL)); in dcopysign()
124 return (ix>>e)&1; in disoddint()
130 return ix>>63; in disstrictneg()
135 return ix>>63; in disneg()
149 return ix==0; in dispo2()
172 ix&=~m; in WRAPPER_FUNC()
193 ix+=m; in WRAPPER_FUNC()
[all …]
/lk-master/external/platform/lpc15xx/lpcopen/lpc_chip_15xx/src/
A Diocon_15xx.c51 uint32_t ix; in Chip_IOCON_SetPinMuxing() local
53 for (ix = 0; ix < arrayLength; ix++ ) { in Chip_IOCON_SetPinMuxing()
54 Chip_IOCON_PinMuxSet(pIOCON, pinArray[ix].port, pinArray[ix].pin, pinArray[ix].modefunc); in Chip_IOCON_SetPinMuxing()

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