applied hint by Black_mirror for keyboard work after kernel restart

git-svn-id: svn://kolibrios.org@301 a494cfbc-eb01-0410-851d-a64ba20cac60
2007-01-30 16:36:36 +00:00 · 2007-01-30 16:36:36 +00:00 · b5e0fe41ca
parent 0e85b8f362
commit b5e0fe41ca
1 changed files with 7 additions and 0 deletions
--- a/kernel/trunk/boot/shutdown.inc
+++ b/kernel/trunk/boot/shutdown.inc
@ -368,6 +368,13 @@ restart_kernel_4000:
    jcxz    $+2
        sti

+; (hint by Black_mirror)
+; We must read data from keyboard port,
+; because there may be situation when previous keyboard interrupt is lost
+; (due to return to real mode and IRQ reprogramming)
+; and next interrupt will not be generated (as keyboard waits for handling)
+        in      al, 0x60
+
 ; bootloader interface
    push    0x1000
    pop    ds