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| author | Aleksa Vuckovic <aleksav013@gmail.com> | 2022-09-03 23:53:53 +0200 |
|---|---|---|
| committer | Aleksa Vuckovic <aleksav013@gmail.com> | 2022-09-04 16:42:56 +0200 |
| commit | 6e9b3275d75e0cdbae1e8f7e4dda8880bb6346bc (patch) | |
| tree | d6c7daf073f41ec2df196a322e8d1210d8e126a1 /kernel/src/boot/boot.S | |
| parent | 11ced165e0df11cc3c889eb0cc402467361c421b (diff) | |
gdt & tss
Diffstat (limited to 'kernel/src/boot/boot.S')
| -rw-r--r-- | kernel/src/boot/boot.S | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/kernel/src/boot/boot.S b/kernel/src/boot/boot.S index 81584ce..e0c5326 100644 --- a/kernel/src/boot/boot.S +++ b/kernel/src/boot/boot.S @@ -1,10 +1,10 @@ .code32 -.global _start .extern begin_long_mode .set KERNEL_VMA, 0xc0000000 .section .boot.text, "a" +.global _start _start: cli mov $stack_top - KERNEL_VMA, %esp @@ -136,7 +136,7 @@ no_long_mode: .section .text 4: - lgdt gdt_pointer + lgdt gdtp ljmp $0x08, $begin_long_mode @@ -189,9 +189,6 @@ gdt_data = . - gdt .byte PRESENT | NOT_SYS | RW .byte GRAN_4K | SZ_32 | 0xF .byte 0 -gdt_tss = . - gdt - .long 0x00000068 - .long 0x00CF8900 -gdt_pointer: +gdtp: .word . - gdt - 1 .quad gdt |