From fcedfddf00b3f994e4f4e40332ac7fc192c63244 Mon Sep 17 00:00:00 2001
From: polwex <polwex@sortug.com>
Date: Sun, 5 Oct 2025 21:56:51 +0700
Subject: claude is gud

---
 vere/pkg/noun/jets/e/rs.c | 390 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 390 insertions(+)
 create mode 100644 vere/pkg/noun/jets/e/rs.c

(limited to 'vere/pkg/noun/jets/e/rs.c')

diff --git a/vere/pkg/noun/jets/e/rs.c b/vere/pkg/noun/jets/e/rs.c
new file mode 100644
index 0000000..360d1c9
--- /dev/null
+++ b/vere/pkg/noun/jets/e/rs.c
@@ -0,0 +1,390 @@
+/// @file
+
+#include "jets/q.h"
+#include "jets/w.h"
+
+#include "noun.h"
+#include "softfloat.h"
+
+#define SINGNAN 0x7fc00000
+
+  union sing {
+    float32_t s;
+    c3_w c;
+  };
+
+  static inline c3_t
+  _nan_test(float32_t a)
+  {
+    return !f32_eq(a, a);
+  }
+
+  static inline float32_t
+  _nan_unify(float32_t a)
+  {
+    if ( _nan_test(a) )
+    {
+      *(c3_w*)(&a) = SINGNAN;
+    }
+    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
+  u3qet_add(u3_atom a,
+            u3_atom b,
+            u3_atom r)
+  {
+    union sing c, d, e;
+    _set_rounding(r);
+    c.c = u3r_word(0, a);
+    d.c = u3r_word(0, b);
+    e.s = _nan_unify(f32_add(c.s, d.s));
+
+    return u3i_words(1, &e.c);
+  }
+
+  u3_noun
+  u3wet_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 u3qet_add(a, b, u3x_at(30, cor));
+    }
+  }
+
+/* sub
+*/
+  u3_noun
+  u3qet_sub(u3_atom a,
+            u3_atom b,
+            u3_atom r)
+  {
+    union sing c, d, e;
+    _set_rounding(r);
+    c.c = u3r_word(0, a);
+    d.c = u3r_word(0, b);
+    e.s = _nan_unify(f32_sub(c.s, d.s));
+
+    return u3i_words(1, &e.c);
+  }
+
+  u3_noun
+  u3wet_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 u3qet_sub(a, b, u3x_at(30, cor));
+    }
+  }
+
+/* mul
+*/
+  u3_noun
+  u3qet_mul(u3_atom a,
+            u3_atom b,
+            u3_atom r)
+  {
+    union sing c, d, e;
+    _set_rounding(r);
+    c.c = u3r_word(0, a);
+    d.c = u3r_word(0, b);
+    e.s = _nan_unify(f32_mul(c.s, d.s));
+
+    return u3i_words(1, &e.c);
+  }
+
+  u3_noun
+  u3wet_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 u3qet_mul(a, b, u3x_at(30, cor));
+    }
+  }
+
+/* div
+*/
+  u3_noun
+  u3qet_div(u3_atom a,
+            u3_atom b,
+            u3_atom r)
+  {
+    union sing c, d, e;
+    _set_rounding(r);
+    c.c = u3r_word(0, a);
+    d.c = u3r_word(0, b);
+    e.s = _nan_unify(f32_div(c.s, d.s));
+
+    return u3i_words(1, &e.c);
+  }
+
+  u3_noun
+  u3wet_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 u3qet_div(a, b, u3x_at(30, cor));
+    }
+  }
+
+/* sqt
+*/
+  u3_noun
+  u3qet_sqt(u3_atom a,
+            u3_atom r)
+  {
+    union sing c, d;
+    _set_rounding(r);
+    c.c = u3r_word(0, a);
+    d.s = _nan_unify(f32_sqrt(c.s));
+
+    return u3i_words(1, &d.c);
+  }
+
+  u3_noun
+  u3wet_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 u3qet_sqt(a, u3x_at(30, cor));
+    }
+  }
+
+/* fma
+*/
+  u3_noun
+  u3qet_fma(u3_atom a,
+            u3_atom b,
+            u3_atom c,
+            u3_atom r)
+  {
+    union sing d, e, f, g;
+    _set_rounding(r);
+    d.c = u3r_word(0, a);
+    e.c = u3r_word(0, b);
+    f.c = u3r_word(0, c);
+    g.s = _nan_unify(f32_mulAdd(d.s, e.s, f.s));
+
+    return u3i_words(1, &g.c);
+  }
+
+  u3_noun
+  u3wet_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 u3qet_fma(a, b, c, u3x_at(30, cor));
+    }
+  }
+
+/* lth
+*/
+  u3_noun
+  u3qet_lth(u3_atom a,
+            u3_atom b)
+  {
+    union sing c, d;
+    c.c = u3r_word(0, a);
+    d.c = u3r_word(0, b);
+
+    return __(f32_lt(c.s, d.s));
+  }
+
+  u3_noun
+  u3wet_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 u3qet_lth(a, b);
+    }
+  }
+
+/* lte
+*/
+  u3_noun
+  u3qet_lte(u3_atom a,
+            u3_atom b)
+  {
+    union sing c, d;
+    c.c = u3r_word(0, a);
+    d.c = u3r_word(0, b);
+
+    return __(f32_le(c.s, d.s));
+  }
+
+  u3_noun
+  u3wet_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 u3qet_lte(a, b);
+    }
+  }
+
+/* equ
+*/
+  u3_noun
+  u3qet_equ(u3_atom a,
+            u3_atom b)
+  {
+    union sing c, d;
+    c.c = u3r_word(0, a);
+    d.c = u3r_word(0, b);
+
+    return __(f32_eq(c.s, d.s));
+  }
+
+  u3_noun
+  u3wet_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 u3qet_equ(a, b);
+    }
+  }
+
+/* gte
+*/
+  u3_noun
+  u3qet_gte(u3_atom a,
+            u3_atom b)
+  {
+    union sing c, d;
+    c.c = u3r_word(0, a);
+    d.c = u3r_word(0, b);
+
+    return __(f32_le(d.s, c.s));
+  }
+
+  u3_noun
+  u3wet_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 u3qet_gte(a, b);
+    }
+  }
+
+/* gth
+*/
+  u3_noun
+  u3qet_gth(u3_atom a,
+            u3_atom b)
+  {
+    union sing c, d;
+    c.c = u3r_word(0, a);
+    d.c = u3r_word(0, b);
+
+    return __(f32_lt(d.s, c.s));
+  }
+
+  u3_noun
+  u3wet_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 u3qet_gth(a, b);
+    }
+  }
-- 
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