From fe849ca438b8110bab519a119e512568b03ff907 Mon Sep 17 00:00:00 2001
From: Richard Qin <richard.qin.x@gmail.com>
Date: Tue, 22 Sep 2026 00:48:10 +0800
Subject: floatPower2

---
 bits.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/bits.c b/bits.c
index 0e2935d..c299fe0 100644
--- a/bits.c
+++ b/bits.c
@@ -311,5 +311,14 @@ int float64_f2i(unsigned uf1, unsigned uf2) {
  *   Difficulty: 4
  */
 unsigned floatPower2(int x) {
-    return 2;
+    if (x < -149) {
+        return 0;
+    }
+    if (x < -126) {
+        return 1 << (x + 149);
+    }
+    if (x <= 127) {
+        return (x + 127) << 23;
+    }
+    return 0x7F800000;
 }
-- 
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