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#include "edk2asm.h" 17 18 .text 19 .align 2 20 GCC_ASM_EXPORT(__aeabi_ldivmod) 21 22// 23// A pair of (unsigned) long longs is returned in {{r0, r1}, {r2, r3}}, 24// the quotient in {r0, r1}, and the remainder in {r2, r3}. 25// 26//__value_in_regs lldiv_t 27//EFIAPI 28//__aeabi_ldivmod ( 29// IN UINT64 Dividen 30// IN UINT64 Divisor 31// )// 32// 33 34ASM_PFX(__aeabi_ldivmod): 35 push {r4,lr} 36 asrs r4,r1,#1 37 eor r4,r4,r3,LSR #1 38 bpl L_Test1 39 rsbs r0,r0,#0 40 rsc r1,r1,#0 41L_Test1: 42 tst r3,r3 43 bpl L_Test2 44 rsbs r2,r2,#0 45 rsc r3,r3,#0 46L_Test2: 47 bl ASM_PFX(__aeabi_uldivmod) 48 tst r4,#0x40000000 49 beq L_Test3 50 rsbs r0,r0,#0 51 rsc r1,r1,#0 52L_Test3: 53 tst r4,#0x80000000 54 beq L_Exit 55 rsbs r2,r2,#0 56 rsc r3,r3,#0 57L_Exit: 58 pop {r4,pc} 59 60 61 62