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/c/clz.c | 75 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 vere/pkg/noun/jets/c/clz.c

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

diff --git a/vere/pkg/noun/jets/c/clz.c b/vere/pkg/noun/jets/c/clz.c
new file mode 100644
index 0000000..f8da45a
--- /dev/null
+++ b/vere/pkg/noun/jets/c/clz.c
@@ -0,0 +1,75 @@
+/// @file
+
+#include "jets/q.h"
+#include "jets/w.h"
+
+#include "noun.h"
+
+u3_atom
+u3qc_clz(u3_atom boq, u3_atom sep, u3_atom a)
+{
+  if ( !_(u3a_is_cat(boq)) || (boq >= 32) ) {
+    return u3m_bail(c3__fail);
+  }
+
+  if ( !_(u3a_is_cat(sep)) ) {
+    return u3m_bail(c3__fail);
+  }
+
+  c3_g boq_g = boq;
+  c3_w sep_w = sep;
+  c3_w tot_w = sep_w << boq_g;
+
+  if ( (tot_w >> boq_g) != sep_w ) {
+    return u3m_bail(c3__fail);
+  }
+
+  c3_w met_w = u3r_met(0, a);
+
+  if ( met_w <= tot_w ) {
+    tot_w -= met_w;
+    return u3i_word(tot_w);
+  }
+  else {
+    c3_w wid_w = tot_w >>  5;
+    c3_w bit_w = tot_w  & 31;
+    c3_w wor_w;
+
+    if ( bit_w ) {
+      wor_w  = u3r_word(wid_w, a);
+      wor_w &= (1 << bit_w) - 1;
+
+      if ( wor_w ) {
+        return bit_w - (32 - c3_lz_w(wor_w));
+      }
+    }
+
+    while ( wid_w-- ) {
+      wor_w = u3r_word(wid_w, a);
+
+      if ( wor_w ) {
+        bit_w += c3_lz_w(wor_w);
+        break;
+      }
+
+      bit_w += 32;
+    }
+
+    return u3i_word(bit_w);
+  }
+}
+
+u3_noun
+u3wc_clz(u3_noun cor)
+{
+  u3_atom boq, sep, vat;
+  {
+    u3_noun sam = u3h(u3t(cor));
+    u3_noun bit = u3h(sam);
+
+    u3x_bite(bit, &boq, &sep);
+    vat = u3x_atom(u3t(sam));
+  }
+
+  return u3qc_clz(boq, sep, vat);
+}
-- 
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