First commit: add folder structure, make process, kernel main function, base for framebuffer driver

2024-05-18 22:06:31 +02:00
commit 25405a7c11
21 changed files with 444 additions and 0 deletions
--- a/loader.s
+++ b/loader.s
@@ -0,0 +1,28 @@
+global loader
+
+MAGIC_NUMBER      equ 0x1BADB002   ; multiboot magic 
+FLAGS             equ 0x0 
+CHECKSUM          equ -MAGIC_NUMBER
+KERNEL_STACK_SIZE equ 4096
+
+section .text:
+align 4
+  dd MAGIC_NUMBER
+  dd FLAGS
+  dd CHECKSUM
+
+extern kmain
+
+loader:
+  ; mov eax, 0xCAFEBABE
+  push dword 42
+  call kmain
+
+.loop:
+  jmp .loop
+
+section .bss
+align 4 
+kernel_stack:
+  resb KERNEL_STACK_SIZE
+  mov esp, kernel_stack + KERNEL_STACK_SIZE