[Qemu-devel] [5876] hw/apic.c: use fls() from host-utils

[Aurelien Jarno <aurelien@aurel32.net>]

Revision: 5876
          http://svn.sv.gnu.org/viewvc/?view=rev&root=qemu&revision=5876
Author:   aurel32
Date:     2008-12-04 20:57:02 +0000 (Thu, 04 Dec 2008)

Log Message:
-----------
hw/apic.c: use fls() from host-utils

...and fix a bug, the implementation in hw/apic.c was wrong.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

Modified Paths:
--------------
    trunk/hw/apic.c

Modified: trunk/hw/apic.c
===================================================================
--- trunk/hw/apic.c	2008-12-04 20:35:16 UTC (rev 5875)
+++ trunk/hw/apic.c	2008-12-04 20:57:02 UTC (rev 5876)
@@ -105,12 +105,6 @@
 static void apic_set_irq(APICState *s, int vector_num, int trigger_mode);
 static void apic_update_irq(APICState *s);
 
-/* Find first bit starting from msb */
-static int fls_bit(uint32_t value)
-{
-    return 31 - clz32(value);
-}
-
 /* Find first bit starting from lsb */
 static int ffs_bit(uint32_t value)
 {
@@ -306,7 +300,7 @@
     int i;
     for(i = 7; i >= 0; i--) {
         if (tab[i] != 0) {
-            return i * 32 + fls_bit(tab[i]);
+            return i * 32 + fls(tab[i]);
         }
     }
     return -1;