u-boot/arch/arm/lib/_ashrdi3.S

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ArmAsm
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/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
Free Software Foundation, Inc.
* SPDX-License-Identifier: GPL-2.0+
*/
#ifdef __ARMEB__
#define al r1
#define ah r0
#else
#define al r0
#define ah r1
#endif
.globl __ashrdi3
.globl __aeabi_lasr
__ashrdi3:
__aeabi_lasr:
subs r3, r2, #32
rsb ip, r2, #32
movmi al, al, lsr r2
movpl al, ah, asr r3
orrmi al, al, ah, lsl ip
mov ah, ah, asr r2
mov pc, lr