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[Qemu-devel] [PULL 3/8] int128: Add int128_exts64()
From: |
Alex Williamson |
Subject: |
[Qemu-devel] [PULL 3/8] int128: Add int128_exts64() |
Date: |
Mon, 02 Jun 2014 16:00:32 -0600 |
User-agent: |
StGit/0.17-dirty |
From: Alexey Kardashevskiy <address@hidden>
This adds macro to extend signed 64bit value to signed 128bit value.
Signed-off-by: Alexey Kardashevskiy <address@hidden>
Reviewed-by: Paolo Bonzini <address@hidden>
Signed-off-by: Alex Williamson <address@hidden>
---
include/qemu/int128.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/qemu/int128.h b/include/qemu/int128.h
index f597031..fb782aa 100644
--- a/include/qemu/int128.h
+++ b/include/qemu/int128.h
@@ -38,6 +38,11 @@ static inline Int128 int128_2_64(void)
return (Int128) { 0, 1 };
}
+static inline Int128 int128_exts64(int64_t a)
+{
+ return (Int128) { .lo = a, .hi = (a < 0) ? -1 : 0 };
+}
+
static inline Int128 int128_and(Int128 a, Int128 b)
{
return (Int128) { a.lo & b.lo, a.hi & b.hi };
- [Qemu-devel] [PULL 0/8] Series short description, Alex Williamson, 2014/06/02
- [Qemu-devel] [PULL 2/8] memory: Sanity check that no listeners remain on a destroyed AddressSpace, Alex Williamson, 2014/06/02
- [Qemu-devel] [PULL 1/8] vfio-pci: Quirk RTL8168 NIC, Alex Williamson, 2014/06/02
- [Qemu-devel] [PULL 3/8] int128: Add int128_exts64(),
Alex Williamson <=
- [Qemu-devel] [PULL 4/8] vfio: Fix 128 bit handling, Alex Williamson, 2014/06/02
- [Qemu-devel] [PULL 5/8] vfio: Rework to have error paths, Alex Williamson, 2014/06/02
- [Qemu-devel] [PULL 6/8] vfio: Introduce VFIO address spaces, Alex Williamson, 2014/06/02
- [Qemu-devel] [PULL 7/8] vfio: Create VFIOAddressSpace objects as needed, Alex Williamson, 2014/06/02
- [Qemu-devel] [PULL 8/8] vfio: Add guest side IOMMU support, Alex Williamson, 2014/06/02
- Re: [Qemu-devel] [PULL 0/8] Series short description, Alex Williamson, 2014/06/02
- Re: [Qemu-devel] [PULL 0/8] Series short description, Peter Maydell, 2014/06/03