diff options
| author | Joursoir <chat@joursoir.net> | 2021-09-28 00:20:44 +0000 |
|---|---|---|
| committer | Joursoir <chat@joursoir.net> | 2021-09-28 00:20:44 +0000 |
| commit | 03fd31416142eb0239d861b6f6a4f2f789df9657 (patch) | |
| tree | fe06e059f92c75ff4e674d25d712990b5cb0748d | |
| parent | 657cbdedb6edeec1340fa36b501c3b2e9fc6df0a (diff) | |
| download | mfsos-03fd31416142eb0239d861b6f6a4f2f789df9657.tar.gz mfsos-03fd31416142eb0239d861b6f6a4f2f789df9657.tar.bz2 mfsos-03fd31416142eb0239d861b6f6a4f2f789df9657.zip | |
x86/boot: add real mode segment constants
| -rw-r--r-- | arch/x86/boot/rm_seg.inc | 13 |
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 |