diff options
| author | Marvin Borner | 2019-09-19 19:56:59 +0200 |
|---|---|---|
| committer | Marvin Borner | 2019-09-19 20:05:38 +0200 |
| commit | 05e1fedcc9cd30d1a34a65e640da45e980b4f859 (patch) | |
| tree | 9cfb7620907ac126f26cdfe9363cb73ed74ea179 /src/kernel/boot.asm | |
| parent | ffd82e18b5259fab477ad375a7af8550fac526d8 (diff) | |
Moved source to kernel directory
Diffstat (limited to 'src/kernel/boot.asm')
| -rw-r--r-- | src/kernel/boot.asm | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/kernel/boot.asm b/src/kernel/boot.asm new file mode 100644 index 0000000..eddd3a4 --- /dev/null +++ b/src/kernel/boot.asm @@ -0,0 +1,50 @@ +[BITS 32] +global start +start: + mov esp, _sys_stack ; Points stack to stack area + jmp stublet + +; Align with 4 Bytes +ALIGN 4 +mboot: + ; Multiboot macros + MULTIBOOT_PAGE_ALIGN equ 1<<0 + MULTIBOOT_MEMORY_INFO equ 1<<1 + MULTIBOOT_AOUT_KLUDGE equ 1<<16 + MULTIBOOT_HEADER_MAGIC equ 0x1BADB002 + MULTIBOOT_HEADER_FLAGS equ MULTIBOOT_PAGE_ALIGN | MULTIBOOT_MEMORY_INFO | MULTIBOOT_AOUT_KLUDGE + MULTIBOOT_CHECKSUM equ -(MULTIBOOT_HEADER_MAGIC + MULTIBOOT_HEADER_FLAGS) + EXTERN code, bss, end + + ; GRUB Multiboot header + dd MULTIBOOT_HEADER_MAGIC + dd MULTIBOOT_HEADER_FLAGS + dd MULTIBOOT_CHECKSUM + + ; AOUT kludge + dd mboot + dd code + dd bss + dd end + dd start + +; Endless loop +stublet: + extern kernel_main + call kernel_main + jmp $ + +%include "src/kernel/gdt/gdt.asm" + +%include "src/kernel/interrupts/idt.asm" + +%include "src/kernel/interrupts/isr.asm" + +%include "src/kernel/interrupts/irq.asm" + +%include "src/kernel/io/io.asm" + +; Store the stack +SECTION .bss + resb 8192 ; Reserve 8KiB +_sys_stack:
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