1//------------------------------------------------------------------------------ 2// 3// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> 4// 5// This program and the accompanying materials 6// are licensed and made available under the terms and conditions of the BSD License 7// which accompanies this distribution. The full text of the license may be found at 8// http://opensource.org/licenses/bsd-license.php 9// 10// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12// 13//------------------------------------------------------------------------------ 14 15 16 .text 17 .align 2 18 GCC_ASM_EXPORT(__aeabi_ldivmod) 19 20// 21// A pair of (unsigned) long longs is returned in {{r0, r1}, {r2, r3}}, 22// the quotient in {r0, r1}, and the remainder in {r2, r3}. 23// 24//__value_in_regs lldiv_t 25//EFIAPI 26//__aeabi_ldivmod ( 27// IN UINT64 Dividen 28// IN UINT64 Divisor 29// )// 30// 31 32ASM_PFX(__aeabi_ldivmod): 33 push {r4,lr} 34 asrs r4,r1,#1 35 eor r4,r4,r3,LSR #1 36 bpl L_Test1 37 rsbs r0,r0,#0 38 rsc r1,r1,#0 39L_Test1: 40 tst r3,r3 41 bpl L_Test2 42 rsbs r2,r2,#0 43 rsc r3,r3,#0 44L_Test2: 45 bl ASM_PFX(__aeabi_uldivmod) 46 tst r4,#0x40000000 47 beq L_Test3 48 rsbs r0,r0,#0 49 rsc r1,r1,#0 50L_Test3: 51 tst r4,#0x80000000 52 beq L_Exit 53 rsbs r2,r2,#0 54 rsc r3,r3,#0 55L_Exit: 56 pop {r4,pc} 57 58 59 60