X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=blobdiff_plain;f=ArmPkg%2FLibrary%2FCompilerIntrinsicsLib%2FArm%2Fldivmod.S;h=e7a05de58913804f0851919d5fe6c17b38d2543a;hp=6ec2bc4aac4e337be00e49fd39319d57f650d15d;hb=3402aac7d985bf8a9f9d3c639f3fe93609380513;hpb=54a7013153082b9c9b7dba30b662abacd8e524b0 diff --git a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ldivmod.S b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ldivmod.S index 6ec2bc4aac..e7a05de589 100755 --- a/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ldivmod.S +++ b/ArmPkg/Library/CompilerIntrinsicsLib/Arm/ldivmod.S @@ -1,59 +1,59 @@ -//------------------------------------------------------------------------------ -// -// Copyright (c) 2008 - 2009, Apple Inc. 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. -// -//------------------------------------------------------------------------------ - - - .text - .align 2 - .globl ASM_PFX(__aeabi_ldivmod) - -// -// A pair of (unsigned) long longs is returned in {{r0, r1}, {r2, r3}}, -// the quotient in {r0, r1}, and the remainder in {r2, r3}. -// -//__value_in_regs lldiv_t -//EFIAPI -//__aeabi_ldivmod ( -// IN UINT64 Dividen -// IN UINT64 Divisor -// )// -// - -ASM_PFX(__aeabi_ldivmod): - PUSH {r4,lr} - ASRS r4,r1,#1 - EOR r4,r4,r3,LSR #1 - BPL L_Test1 - RSBS r0,r0,#0 - RSC r1,r1,#0 -L_Test1: - TST r3,r3 - BPL L_Test2 - RSBS r2,r2,#0 - RSC r3,r3,#0 -L_Test2: - BL ASM_PFX(__aeabi_uldivmod) - TST r4,#0x40000000 - BEQ L_Test3 - RSBS r0,r0,#0 - RSC r1,r1,#0 -L_Test3: - TST r4,#0x80000000 - BEQ L_Exit - RSBS r2,r2,#0 - RSC r3,r3,#0 -L_Exit: - POP {r4,pc} - - - +//------------------------------------------------------------------------------ +// +// Copyright (c) 2008 - 2009, Apple Inc. 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. +// +//------------------------------------------------------------------------------ + + + .text + .align 2 + GCC_ASM_EXPORT(__aeabi_ldivmod) + +// +// A pair of (unsigned) long longs is returned in {{r0, r1}, {r2, r3}}, +// the quotient in {r0, r1}, and the remainder in {r2, r3}. +// +//__value_in_regs lldiv_t +//EFIAPI +//__aeabi_ldivmod ( +// IN UINT64 Dividen +// IN UINT64 Divisor +// )// +// + +ASM_PFX(__aeabi_ldivmod): + push {r4,lr} + asrs r4,r1,#1 + eor r4,r4,r3,LSR #1 + bpl L_Test1 + rsbs r0,r0,#0 + rsc r1,r1,#0 +L_Test1: + tst r3,r3 + bpl L_Test2 + rsbs r2,r2,#0 + rsc r3,r3,#0 +L_Test2: + bl ASM_PFX(__aeabi_uldivmod) + tst r4,#0x40000000 + beq L_Test3 + rsbs r0,r0,#0 + rsc r1,r1,#0 +L_Test3: + tst r4,#0x80000000 + beq L_Exit + rsbs r2,r2,#0 + rsc r3,r3,#0 +L_Exit: + pop {r4,pc} + + +