From e3de0bdced81720fd904ff38d7c62fc55764c42f Mon Sep 17 00:00:00 2001
From: dzwdz
Date: Tue, 20 Jul 2021 19:24:53 +0200
Subject: global PAGE_MASK define

it's pretty useful, so it makes sense to define it alongside PAGE_SIZE
---
 src/kernel/arch/generic.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'src/kernel/arch/generic.h')

diff --git a/src/kernel/arch/generic.h b/src/kernel/arch/generic.h
index 22efe58..7ce3d46 100644
--- a/src/kernel/arch/generic.h
+++ b/src/kernel/arch/generic.h
@@ -6,6 +6,7 @@
 // i have no idea where else to put it
 // some code assumes that it's a power of 2
 #define PAGE_SIZE 4096
+#define PAGE_MASK (PAGE_SIZE - 1)
 
 // linker.ld
 extern char _bss_end;
-- 
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