1 files changed, 16 insertions, 0 deletions
diff --git a/doc/design/memory_map.txt b/doc/design/memory_map.txt
new file mode 100644
index 0000000..28aed8a
--- /dev/null
+++ b/doc/design/memory_map.txt
@@ -0,0 +1,16 @@
+0x0000 - 0x03ff : interrupt vector table
+0x0400 - 0x04ff : bios data area
+0x0500 - 0x05ff : structure pointers
+  0x00 dword : fat pointer
+0x0600 - 0x1fff : not assigned
+0x2000 - 0x3fff : memory map
+  for each word : 1 page
+    0x0000 = free
+    0x0001 = unavailable
+    0x0002 = kernel
+    other = process number
+
+0x4000 - 0x6fff : not assigned
+0x7000 - 0x7bff : bootloader scratch
+  0x7000 : memory map bios buffer
+0x7c00 - 0x7fff : bootloader
+\ No newline at end of file