Set up interrupt table at startup directly (less code), not calling setint

2020-04-21 20:22:42 +02:00 · 2020-04-21 20:22:42 +02:00 · bbfcd42f61
commit bbfcd42f61
parent 94829aed1e
1 changed files with 5 additions and 7 deletions
--- a/boot/kernel.asm
+++ b/boot/kernel.asm
@ -244,14 +244,12 @@ init:	cli
 	call select

 	; Set int 0x20 to 0x2F
-	mov bx, ivects+0x7C00-$$
+	mov di, (0x20*4)
+	mov si, ivects+0x7C00-$$
 	mov cx, 0x10
-	mov al, 0x20
-.loop:	mov dx, [bx]
-	call setint
-	inc al
-	inc bx
-	inc bx
+.loop:	movsw
+	mov ax, cs
+	stosw
 	loop .loop

 	mov si, banner