/* $NetBSD: ldivmod.S,v 1.1.1.1 2018/08/16 18:17:47 jmcneill Exp $ */ //------------------------------------------------------------------------------ // // 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. // //------------------------------------------------------------------------------ #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}