Create and load a stack

8 years ago · 9819e17a28
parent 5ebdd89ffb
commit 9819e17a28
1 changed files with 7 additions and 0 deletions
--- a/src/arch/x86_64/boot.asm
+++ b/src/arch/x86_64/boot.asm
@ -3,6 +3,8 @@ global start
 section .text
 bits 32
 start:
+    mov esp, stack_top
+
    ; print `OK` to screen
    mov dword [0xb8000], 0x2f4b2f4f
    hlt
@ -15,3 +17,8 @@ error:
    mov dword [0xb8008], 0x4f204f20
    mov byte  [0xb800a], al
    hlt
+
+section .bss
+stack_bottom:
+    resb 64
+stack_top: