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//------------------------------------------------------------------------------
//
// Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
// Copyright (c) 2018, Pete Batard. All rights reserved.<BR>
//
// SPDX-License-Identifier: BSD-2-Clause-Patent
//
//------------------------------------------------------------------------------
IMPORT __aeabi_uldivmod
EXPORT __aeabi_ldivmod
EXPORT __rt_sdiv64
AREA s___aeabi_ldivmod, CODE, READONLY, ARM
ARM
;
;INT64
;EFIAPI
;__rt_sdiv64 (
; IN INT64 Divisor
; IN INT64 Dividend
; );
;
__rt_sdiv64
; Swap r0-r1 and r2-r3
MOV r12, r0
MOV r0, r2
MOV r2, r12
MOV r12, r1
MOV r1, r3
MOV r3, r12
B __aeabi_ldivmod
;
;INT64
;EFIAPI
;__aeabi_ldivmod (
; IN INT64 Dividend
; IN INT64 Divisor
; );
;
__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 __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}
END
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