inital commit

2018-10-07 15:16:25 +01:00
parent 9d99a5ff25
commit ae052c66f1
7 changed files with 178 additions and 0 deletions
--- a/kernel.asm
+++ b/kernel.asm
@@ -0,0 +1,21 @@
+;;kernel.asm
+bits 32                      ; tells nasm to use 32 bit
+section .text
+        ;multiboot spec
+        align 4
+        dd 0x1BADB002            ;magic
+        dd 0x00                  ;flags
+        dd - (0x1BADB002 + 0x00) ;checksum. m+f+c should be zero
+
+global start
+extern kmain
+
+start:
+    cli                       ; blocks interupts i think
+    mov ESP, stack_space      ; sets stack pointer
+    call kmain                ; calls kmain c++ function
+    hlt                       ; halts CPU
+
+section .bss
+resb 8192                     ; 8 kb stack
+stack_space: