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| author | Jake Mannens <jake72360@gmail.com> | 2018-06-20 04:39:25 +1000 |
|---|---|---|
| committer | Jake Mannens <jake72360@gmail.com> | 2018-06-20 04:39:25 +1000 |
| commit | a4ea0b14840ef5946408a3893f3f1c92ed57ae80 (patch) | |
| tree | 0290ff480f8d9156b6bfcd35d009028e08cb5041 /kernel/boot.s | |
| parent | f6858b7333139441215e83e070e098bf09056762 (diff) | |
Added a very basic types.h header file that defines NULL, size_t and
time_t.
Moved the kernel's loading point down to address 0 in
conventional memory and updated linker scripts accordingly.
Began to experiment with loading a binary blob into extended memory
(0x100000), switching to userspace mode, and executing it.
Diffstat (limited to 'kernel/boot.s')
| -rw-r--r-- | kernel/boot.s | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/kernel/boot.s b/kernel/boot.s index e41c0b2..024abf0 100644 --- a/kernel/boot.s +++ b/kernel/boot.s @@ -17,11 +17,14 @@ kboot: cli call flush_gdt call flush_idt - call timer_init + ;call timer_init call kmain cli hlt +tss: + times 104 db 0 + gdt: ; null descriptor dq 0 @@ -53,6 +56,7 @@ gdt: db 0xF2 db 0xCF db 0x00 + ; task state segment gdtp: dw ($-gdt-1) |