From 0a48084bb24bf9484c6d096942ca45f12c625ac2 Mon Sep 17 00:00:00 2001
From: Raine <raine@ixvd.net>
Date: Tue, 30 Jan 2024 15:48:58 +0100
Subject: [PATCH] feat: even-odd stupidness

---
 experiments/even-odd/create.py | 26 ++++++++++++++++++++++++++
 experiments/even-odd/ref.md    |  2 ++
 wiki                           |  2 +-
 3 files changed, 29 insertions(+), 1 deletion(-)
 create mode 100644 experiments/even-odd/create.py
 create mode 100644 experiments/even-odd/ref.md

diff --git a/experiments/even-odd/create.py b/experiments/even-odd/create.py
new file mode 100644
index 0000000..a3f5d3d
--- /dev/null
+++ b/experiments/even-odd/create.py
@@ -0,0 +1,26 @@
+import struct
+import time
+
+bitWidth = 32
+startTime = time.time()
+
+with open('isEven.bin', 'wb') as file:
+   
+    file.write(b"\x31\xC0")                     # XOR EAX, EAX
+
+    for i in range(2**bitWidth):
+        print(f"[{round(time.time() - startTime, 1)}s elapsed] status: {i}/{2**bitWidth} ({2**bitWidth - i} left)", end='\r')
+
+        ib = struct.pack("<I", i)               # Encode i as 32 bit little endian integer
+
+        file.write(b"\x81\xF9" + ib)            # CMP ECX, i
+
+        if i%2 == 0:
+            file.write(b"\x75\x03")             # JNE +3
+            file.write(b"\xFF\xC0")             # INC EAX
+            file.write(b"\xC3")                 # RET
+        else:
+            file.write(b"\x75\x01")             # JNE +1
+            file.write(b"\xC3")                 # RET
+
+    file.write(b"\xC3")                         # Fallback RET
diff --git a/experiments/even-odd/ref.md b/experiments/even-odd/ref.md
new file mode 100644
index 0000000..2131404
--- /dev/null
+++ b/experiments/even-odd/ref.md
@@ -0,0 +1,2 @@
+This idea is from this deranged post:
+https://andreasjhkarlsson.github.io//jekyll/update/2023/12/27/4-billion-if-statements.html
diff --git a/wiki b/wiki
index b04ae4e..88692c6 160000
--- a/wiki
+++ b/wiki
@@ -1 +1 @@
-Subproject commit b04ae4e652f236922a65fe4fbfdde36da732d24b
+Subproject commit 88692c6bec89f94416fb7f694ebf364bde71e468