kernel heap: dont trash ES

2019-03-23 21:27:06 +00:00 · 2019-03-23 21:27:06 +00:00 · 40a7c52bae
commit 40a7c52bae
parent 4489dd1b47
1 changed files with 4 additions and 0 deletions
--- a/kernel/heap.asm
+++ b/kernel/heap.asm
@ -5,10 +5,14 @@ heap_init:
  push ax ; byte value (0)
  push cx ; loop counter
  push di ; target ptr
+  push es
+  mov ax, ds
+  mov es, ax
  xor ax, ax
  mov cx, [heap_size]
  mov di, heap
  rep stosb ; rep makes this loop cx times, incrementing di, writing al
+  pop es
  pop di
  pop cx
  pop ax