| //------------------------------------------------------------------------------ |
| // |
| // Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR> |
| // |
| // 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. |
| // |
| //------------------------------------------------------------------------------ |
| |
| |
| #include "edk2asm.h" |
| |
| .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} |
| |
| |
| |