diff options
author | AJFISH <AJFISH@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-12-06 01:57:05 +0000 |
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committer | AJFISH <AJFISH@6f19259b-4bc3-4df7-8a09-765794883524> | 2009-12-06 01:57:05 +0000 |
commit | 2ef2b01e07c02db339f34004445734a2dbdd80e1 (patch) | |
tree | 19532a6be8d8bdb0aef04bd00c1efb582f6dc841 /ArmPkg/Library/CompilerIntrinsicsLib/Arm/ucmpdi2.c | |
parent | f7753a96ba1653ddd31b01c198a352f6332ac404 (diff) | |
download | edk2-platforms-2ef2b01e07c02db339f34004445734a2dbdd80e1.tar.xz |
Adding support for BeagleBoard.
ArmPkg - Supoprt for ARM specific things that can change as the architecture changes. Plus semihosting JTAG drivers.
EmbeddedPkg - Generic support for an embeddded platform. Including a light weight command line shell.
BeagleBoardPkg - Platform specifics for BeagleBoard. SD Card works, but USB has issues. Looks like a bug in the open source USB stack (Our internal stack works fine).
git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@9518 6f19259b-4bc3-4df7-8a09-765794883524
Diffstat (limited to 'ArmPkg/Library/CompilerIntrinsicsLib/Arm/ucmpdi2.c')
-rw-r--r-- | ArmPkg/Library/CompilerIntrinsicsLib/Arm/ucmpdi2.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ucmpdi2.c b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ucmpdi2.c new file mode 100644 index 0000000000..0cf1404b32 --- /dev/null +++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ucmpdi2.c @@ -0,0 +1,82 @@ +/** @file + Compiler intrinsic for 64-bit compare, ported from LLVM code. + + Copyright (c) 2008-2009, Apple Inc. All rights reserved. + + All rights reserved. This program and the accompanying materials + are licensed and made available under the terms and conditions of the BSD License + which accompanies this distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. + +**/ +/** + University of Illinois/NCSA + Open Source License + + Copyright (c) 2003-2008 University of Illinois at Urbana-Champaign. + All rights reserved. + + Developed by: + + LLVM Team + + University of Illinois at Urbana-Champaign + + http://llvm.org + + Permission is hereby granted, free of charge, to any person obtaining a copy of + this software and associated documentation files (the "Software"), to deal with + the Software without restriction, including without limitation the rights to + use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies + of the Software, and to permit persons to whom the Software is furnished to do + so, subject to the following conditions: + + * Redistributions of source code must retain the above copyright notice, + this list of conditions and the following disclaimers. + + * Redistributions in binary form must reproduce the above copyright notice, + this list of conditions and the following disclaimers in the + documentation and/or other materials provided with the distribution. + + * Neither the names of the LLVM Team, University of Illinois at + Urbana-Champaign, nor the names of its contributors may be used to + endorse or promote products derived from this Software without specific + prior written permission. + + THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS + FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE + CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS WITH THE + SOFTWARE. +**/ + + +#include "Llvm_int_lib.h" + + +// Returns: if (a < b) returns 0 +// if (a == b) returns 1 +// if (a > b) returns 2 + +UINT32 +__ucmpdi2(UINT64 a, UINT64 b) +{ + udwords x; + x.all = a; + udwords y; + y.all = b; + if (x.high < y.high) + return 0; + if (x.high > y.high) + return 2; + if (x.low < y.low) + return 0; + if (x.low > y.low) + return 2; + return 1; +} |