From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:39283) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VCQ8S-0001n4-FW for qemu-devel@nongnu.org; Thu, 22 Aug 2013 04:20:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1VCQ8M-0007ss-Ay for qemu-devel@nongnu.org; Thu, 22 Aug 2013 04:20:52 -0400 Received: from mail-pa0-f43.google.com ([209.85.220.43]:57629) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1VCQ8M-0007sa-4x for qemu-devel@nongnu.org; Thu, 22 Aug 2013 04:20:46 -0400 Received: by mail-pa0-f43.google.com with SMTP id hz10so1881255pad.30 for ; Thu, 22 Aug 2013 01:20:45 -0700 (PDT) From: Alexey Kardashevskiy Date: Thu, 22 Aug 2013 18:20:30 +1000 Message-Id: <1377159632-7446-2-git-send-email-aik@ozlabs.ru> In-Reply-To: <1377159632-7446-1-git-send-email-aik@ozlabs.ru> References: <1377159632-7446-1-git-send-email-aik@ozlabs.ru> Subject: [Qemu-devel] [PATCH v2 1/3] int128: add int128_exts64() List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Alexey Kardashevskiy , Paolo Bonzini , Alex Williamson This adds macro to extend signed 64bit value to signed 128bit value. Signed-off-by: Alexey Kardashevskiy --- include/qemu/int128.h | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/include/qemu/int128.h b/include/qemu/int128.h index 9ed47aa..987a1a9 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 >> 63) ? -1 : 0 }; +} + static inline Int128 int128_and(Int128 a, Int128 b) { return (Int128) { a.lo & b.lo, a.hi & b.hi }; -- 1.8.4.rc4