From 3b3fa349d44a35847b2377fb56e2531f699acdf4 Mon Sep 17 00:00:00 2001
From: Ain <41307858+nero@users.noreply.github.com>
Date: Tue, 16 Apr 2019 07:23:22 +0000
Subject: [PATCH] Make interrupt landing pads safe against external DS values

---
 kernel/intr.asm | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/kernel/intr.asm b/kernel/intr.asm
index 5a6eb5e..7542223 100644
--- a/kernel/intr.asm
+++ b/kernel/intr.asm
@@ -77,42 +77,42 @@ intr_init:
 
 irq0:
   int 0x48
-  or byte [intr_flip], 0x01
+  or byte [cs:intr_flip], 0x01
   jmp irqret
 
 irq1:
   int 0x49
-  or byte [intr_flip], 0x02
+  or byte [cs:intr_flip], 0x02
   jmp irqret
 
 irq2:
   int 0x4A
-  or byte [intr_flip], 0x04
+  or byte [cs:intr_flip], 0x04
   jmp irqret
 
 irq3:
   int 0x4B
-  or byte [intr_flip], 0x08
+  or byte [cs:intr_flip], 0x08
   jmp irqret
 
 irq4:
   int 0x4C
-  or byte [intr_flip], 0x10
+  or byte [cs:intr_flip], 0x10
   jmp irqret
 
 irq5:
   int 0x4D
-  or byte [intr_flip], 0x20
+  or byte [cs:intr_flip], 0x20
   jmp irqret
 
 irq6:
   int 0x4E
-  or byte [intr_flip], 0x40
+  or byte [cs:intr_flip], 0x40
   jmp irqret
 
 irq7:
   int 0x4F
-  or byte [intr_flip], 0x80
+  or byte [cs:intr_flip], 0x80
   jmp irqret
 
 hwiret: