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-rw-r--r--hw/pc.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/pc.c b/hw/pc.c
index dfa3144aea..ba1f19d7e8 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -105,7 +105,7 @@ static void ioport80_write(void *opaque, hwaddr addr, uint64_t data,
 
 static uint64_t ioport80_read(void *opaque, hwaddr addr, unsigned size)
 {
-    return 0xffffffffffffffff;
+    return 0xffffffffffffffffULL;
 }
 
 /* MSDOS compatibility mode FPU exception support */
@@ -130,7 +130,7 @@ static void ioportF0_write(void *opaque, hwaddr addr, uint64_t data,
 
 static uint64_t ioportF0_read(void *opaque, hwaddr addr, unsigned size)
 {
-    return 0xffffffffffffffff;
+    return 0xffffffffffffffffULL;
 }
 
 /* TSC handling */