1 files changed, 9 insertions, 3 deletions
diff --git a/devices/pic_8259.c b/devices/pic_8259.c
index 62164d3..d3a2f6a 100644
--- a/devices/pic_8259.c
+++ b/devices/pic_8259.c
@@ -36,9 +36,15 @@ pic_init()
 void
 pic_enable()
 {
-  // PIC masks
-  outb(0xfc, PIC1 + DATA);
-  outb(0xff, PIC2 + DATA);
+  unsigned char mask1 = 0xff;
+  mask1 &= ~(1 << 0); // irq0 timer
+  mask1 &= ~(1 << 1); // irq1 keyboard
+  // mask1 &= ~(1 << 2); // irq1 cascade
+  outb(mask1, PIC1 + DATA);
+
+  unsigned char mask2 = 0xff;
+  // mask2 &= ~(1 << 4); // irq12 mouse
+  outb(mask2, PIC2 + DATA);
 
   enable_interrupts();
 }