Changeset 93590 in vbox for trunk/src/VBox/Devices

Timestamp:

Feb 3, 2022 4:45:47 PM (3 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

149727

Message:

DevDP8390: Manual 0xff loop write optimization (gcc 10+ does this on its own, causing trouble).

File:

• trunk/src/VBox/Devices/Network/DevDP8390.cpp (modified) (2 diffs)

trunk/src/VBox/Devices/Network/DevDP8390.cpp

@@ -3660 +3660 @@
     }
     else
-    {
-        while (cb-- > 0)
-            *pbData++ = 0xff;
-    }
+        memset(pv, 0xff, cb);
 
 //    STAM_PROFILE_STOP(&pThis->CTX_MID_Z(Stat,MemoryRead), a);
@@ -3715 +3712 @@
     {
         Log3Func(("#%d: Ignoring read of %u bytes from address %X\n", pDevIns->iInstance, cb, off));
-        while (cb-- > 0)
-            *pbData++ = 0xff;
+        memset(pv, 0xff, cb);
     }
     return VINF_SUCCESS;