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-rw-r--r--arch/x86/boot/rm_seg.inc13
1 files changed, 13 insertions, 0 deletions
diff --git a/arch/x86/boot/rm_seg.inc b/arch/x86/boot/rm_seg.inc
new file mode 100644
index 0000000..40067b9
--- /dev/null
+++ b/arch/x86/boot/rm_seg.inc
@@ -0,0 +1,13 @@
+/*
+ Real mode segment constants.
+
+ NOTE: Header file only for assembler
+*/
+
+# Addresses of RAM:
+.set BOOTSEG, 0x07c0 # Address of boot sector
+.set SDATASEG, 0x9000 # System data
+.set SETUPLEN, 1 # Number of setup sectors
+.set SETUPSEG, 0x9020 # Setup address
+.set KERNSEG, 0x0100 # Historical load address
+.set KERNADDR, KERNSEG * 0x10