mirror of
https://github.com/urbit/shrub.git
synced 2024-12-23 02:41:35 +03:00
391 lines
6.3 KiB
C
391 lines
6.3 KiB
C
/* j/e/rd.c
|
|
**
|
|
*/
|
|
#include "all.h"
|
|
#include <softfloat.h>
|
|
|
|
#define DOUBNAN 0x7ff8000000000000
|
|
|
|
union doub {
|
|
float64_t d;
|
|
c3_d c;
|
|
};
|
|
|
|
/* functions
|
|
*/
|
|
static inline c3_t
|
|
_nan_test(float64_t a)
|
|
{
|
|
return !f64_eq(a, a);
|
|
}
|
|
|
|
static inline float64_t
|
|
_nan_unify(float64_t a)
|
|
{
|
|
if ( _nan_test(a) )
|
|
{
|
|
*(c3_d*)(&a) = DOUBNAN;
|
|
}
|
|
return a;
|
|
}
|
|
|
|
static inline void
|
|
_set_rounding(c3_w a)
|
|
{
|
|
switch ( a )
|
|
{
|
|
default:
|
|
u3m_bail(c3__fail);
|
|
break;
|
|
case c3__n:
|
|
softfloat_roundingMode = softfloat_round_near_even;
|
|
break;
|
|
case c3__z:
|
|
softfloat_roundingMode = softfloat_round_minMag;
|
|
break;
|
|
case c3__u:
|
|
softfloat_roundingMode = softfloat_round_max;
|
|
break;
|
|
case c3__d:
|
|
softfloat_roundingMode = softfloat_round_min;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* add
|
|
*/
|
|
u3_noun
|
|
u3qer_add(u3_atom a,
|
|
u3_atom b,
|
|
u3_atom r)
|
|
{
|
|
union doub c, d, e;
|
|
_set_rounding(r);
|
|
c.c = u3r_chub(0, a);
|
|
d.c = u3r_chub(0, b);
|
|
e.d = _nan_unify(f64_add(c.d, d.d));
|
|
|
|
return u3i_chubs(1, &e.c);
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_add(u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_add(a, b, u3x_at(30, cor));
|
|
}
|
|
}
|
|
|
|
/* sub
|
|
*/
|
|
u3_noun
|
|
u3qer_sub(u3_atom a,
|
|
u3_atom b,
|
|
u3_atom r)
|
|
{
|
|
union doub c, d, e;
|
|
_set_rounding(r);
|
|
c.c = u3r_chub(0, a);
|
|
d.c = u3r_chub(0, b);
|
|
e.d = _nan_unify(f64_sub(c.d, d.d));
|
|
|
|
return u3i_chubs(1, &e.c);
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_sub(u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_sub(a, b, u3x_at(30, cor));
|
|
}
|
|
}
|
|
|
|
/* mul
|
|
*/
|
|
u3_noun
|
|
u3qer_mul(u3_atom a,
|
|
u3_atom b,
|
|
u3_atom r)
|
|
{
|
|
union doub c, d, e;
|
|
_set_rounding(r);
|
|
c.c = u3r_chub(0, a);
|
|
d.c = u3r_chub(0, b);
|
|
e.d = _nan_unify(f64_mul(c.d, d.d));
|
|
|
|
return u3i_chubs(1, &e.c);
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_mul(u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_mul(a, b, u3x_at(30, cor));
|
|
}
|
|
}
|
|
|
|
/* div
|
|
*/
|
|
u3_noun
|
|
u3qer_div(u3_atom a,
|
|
u3_atom b,
|
|
u3_atom r)
|
|
{
|
|
union doub c, d, e;
|
|
_set_rounding(r);
|
|
c.c = u3r_chub(0, a);
|
|
d.c = u3r_chub(0, b);
|
|
e.d = _nan_unify(f64_div(c.d, d.d));
|
|
|
|
return u3i_chubs(1, &e.c);
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_div(u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_div(a, b, u3x_at(30, cor));
|
|
}
|
|
}
|
|
|
|
/* sqt
|
|
*/
|
|
u3_noun
|
|
u3qer_sqt(u3_atom a,
|
|
u3_atom r)
|
|
{
|
|
union doub c, d;
|
|
_set_rounding(r);
|
|
c.c = u3r_chub(0, a);
|
|
d.d = _nan_unify(f64_sqrt(c.d));
|
|
|
|
return u3i_chubs(1, &d.c);
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_sqt(u3_noun cor)
|
|
{
|
|
u3_noun a;
|
|
|
|
if ( c3n == (a = u3r_at(u3x_sam, cor)) ||
|
|
c3n == u3ud(a) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_sqt(a, u3x_at(30, cor));
|
|
}
|
|
}
|
|
|
|
/* fma
|
|
*/
|
|
u3_noun
|
|
u3qer_fma(u3_atom a,
|
|
u3_atom b,
|
|
u3_atom c,
|
|
u3_atom r)
|
|
{
|
|
union doub d, e, f, g;
|
|
_set_rounding(r);
|
|
d.c = u3r_chub(0, a);
|
|
e.c = u3r_chub(0, b);
|
|
f.c = u3r_chub(0, c);
|
|
g.d = _nan_unify(f64_mulAdd(d.d, e.d, f.d));
|
|
|
|
return u3i_chubs(1, &g.c);
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_fma(u3_noun cor)
|
|
{
|
|
u3_noun a, b, c;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_6, &b, u3x_sam_7, &c, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) ||
|
|
c3n == u3ud(c) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_fma(a, b, c, u3x_at(30, cor));
|
|
}
|
|
}
|
|
|
|
/* lth
|
|
*/
|
|
u3_noun
|
|
u3qer_lth(u3_atom a,
|
|
u3_atom b)
|
|
{
|
|
union doub c, d;
|
|
c.c = u3r_chub(0, a);
|
|
d.c = u3r_chub(0, b);
|
|
|
|
return __(f64_lt(c.d, d.d));
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_lth(u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_lth(a, b);
|
|
}
|
|
}
|
|
|
|
/* lte
|
|
*/
|
|
u3_noun
|
|
u3qer_lte(u3_atom a,
|
|
u3_atom b)
|
|
{
|
|
union doub c, d;
|
|
c.c = u3r_chub(0, a);
|
|
d.c = u3r_chub(0, b);
|
|
|
|
return __(f64_le(c.d, d.d));
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_lte(u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_lte(a, b);
|
|
}
|
|
}
|
|
|
|
/* equ
|
|
*/
|
|
u3_noun
|
|
u3qer_equ(u3_atom a,
|
|
u3_atom b)
|
|
{
|
|
union doub c, d;
|
|
c.c = u3r_chub(0, a);
|
|
d.c = u3r_chub(0, b);
|
|
|
|
return __(f64_eq(c.d, d.d));
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_equ(u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_equ(a, b);
|
|
}
|
|
}
|
|
|
|
/* gte
|
|
*/
|
|
u3_noun
|
|
u3qer_gte(u3_atom a,
|
|
u3_atom b)
|
|
{
|
|
union doub c, d;
|
|
c.c = u3r_chub(0, a);
|
|
d.c = u3r_chub(0, b);
|
|
|
|
return __(f64_le(d.d, c.d));
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_gte(u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_gte(a, b);
|
|
}
|
|
}
|
|
|
|
/* gth
|
|
*/
|
|
u3_noun
|
|
u3qer_gth(u3_atom a,
|
|
u3_atom b)
|
|
{
|
|
union doub c, d;
|
|
c.c = u3r_chub(0, a);
|
|
d.c = u3r_chub(0, b);
|
|
|
|
return __(f64_lt(d.d, c.d));
|
|
}
|
|
|
|
u3_noun
|
|
u3wer_gth(u3_noun cor)
|
|
{
|
|
u3_noun a, b;
|
|
|
|
if ( c3n == u3r_mean(cor, u3x_sam_2, &a, u3x_sam_3, &b, 0) ||
|
|
c3n == u3ud(a) ||
|
|
c3n == u3ud(b) )
|
|
{
|
|
return u3m_bail(c3__exit);
|
|
}
|
|
else {
|
|
return u3qer_gth(a, b);
|
|
}
|
|
}
|