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| 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/ldivmod.asm | |
| parent | f7753a96ba1653ddd31b01c198a352f6332ac404 (diff) | |
| download | edk2-2ef2b01e07c02db339f34004445734a2dbdd80e1.tar.gz edk2-2ef2b01e07c02db339f34004445734a2dbdd80e1.tar.bz2 edk2-2ef2b01e07c02db339f34004445734a2dbdd80e1.zip | |
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/ldivmod.asm')
| -rw-r--r-- | ArmPkg/Library/CompilerIntrinsicsLib/Arm/ldivmod.asm | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ldivmod.asm b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ldivmod.asm new file mode 100644 index 0000000000..cb81608b01 --- /dev/null +++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ldivmod.asm @@ -0,0 +1,54 @@ +//------------------------------------------------------------------------------ +// +// 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. +// +//------------------------------------------------------------------------------ + + + EXPORT __aeabi_ldivmod + EXTERN __aeabi_uldivmod + + AREA Math, CODE, READONLY + +; +;UINT32 +;EFIAPI +;__aeabi_uidivmode ( +; IN UINT32 Dividen +; IN UINT32 Divisor +; ); +; + +__aeabi_ldivmod + PUSH {r4,lr} + ASRS r4,r1,#1 + EOR r4,r4,r3,LSR #1 + BPL {pc} + 0xc ; 0x18 + RSBS r0,r0,#0 + RSC r1,r1,#0 + TST r3,r3 + BPL {pc} + 0xc ; 0x28 + RSBS r2,r2,#0 + RSC r3,r3,#0 + BL __aeabi_uldivmod ; + TST r4,#0x40000000 + BEQ {pc} + 0xc ; 0x3c + RSBS r0,r0,#0 + RSC r1,r1,#0 + TST r4,#0x80000000 + BEQ {pc} + 0xc ; 0x4c + RSBS r2,r2,#0 + RSC r3,r3,#0 + POP {r4,pc} + + END + + |