From e0e08a12d4de86b558674fb9f90ad0b0204c26f0 Mon Sep 17 00:00:00 2001
From: Benji Dial <Benji3.141@gmail.com>
Date: Thu, 26 Dec 2019 15:50:21 -0500
Subject: working memory manager

---
 src/kernel/mem.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'src/kernel/mem.h')

diff --git a/src/kernel/mem.h b/src/kernel/mem.h
index 106db90..5c0d387 100644
--- a/src/kernel/mem.h
+++ b/src/kernel/mem.h
@@ -35,7 +35,11 @@ struct mmap_entry {
   struct mmap_entry *next;
 };
 
+#define MMAP_SIZE 65536
 struct mmap_entry *mmap_start;
+struct mmap_entry mmap_bss[MMAP_SIZE];
+uint32_t mmap_bitmap[MMAP_SIZE / 32];
+#define unmark_entry(entry) mmap_bitmap[((entry) - mmap_bss) >> 5] ^= 1 << (((entry) - mmap_bss) & 0x0000001f);
 void *allocate_block(uint32_t size, uint16_t proc_n);
 void deallocate_block(void *start);
 
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