| //------------------------------------------------------------------------------ | |
| // | |
| // 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. | |
| // | |
| //------------------------------------------------------------------------------ | |
| .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} | |