From dd77bbd88cbbe64eca9e3e2387e0cdebcf77ba06 Mon Sep 17 00:00:00 2001
From: Camden Dixie O'Brien <cdo@wip.sh>
Date: Fri, 8 Nov 2024 18:12:46 +0000
Subject: [PATCH] Correct instruction description for idiv

---
 main.tex | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/main.tex b/main.tex
index 7adca55..e90cdd1 100644
--- a/main.tex
+++ b/main.tex
@@ -35,8 +35,8 @@
   inc \ D & D \leftarrow D + 1 \\ \hline
   dec \ D & D \leftarrow D - 1 \\ \hline
   imul S,D & D \leftarrow S \times D \\ \hline
-  idiv S & \mathtt{rax} \leftarrow \lfloor\mathtt{rax} \div S\rfloor \\
-  & \mathtt{rdx} \leftarrow \mathtt{rax}\mod{S} \\ \hline
+  idiv S & \mathtt{rax} \leftarrow \lfloor\mathtt{rdx}:\mathtt{rax} \div S\rfloor \\
+  & \mathtt{rdx} \leftarrow (\mathtt{rdx}:\mathtt{rax})\mod{S} \\ \hline
   \hline
   and S,D & D \leftarrow S \mathbin{\&} D \\ \hline
   or \ S,D & D \leftarrow S \mathbin{|} D \\ \hline