Files
Linux_Drivers/u-boot-2021.10/arch/arm/lib/ashrdi3.S
sam.xiang f8fc109960 [uboot] create uboot from github:
repo: https://github.com/u-boot/u-boot
	commit: d80bb749fab53da72c4a0e09b8c2d2aaa3103c91

Change-Id: Ie6434426e1ec15bc08bb1832798e371f3fd5fb29
2023-03-10 20:30:57 +08:00

34 lines
604 B
ArmAsm

/* SPDX-License-Identifier: GPL-2.0+ */
/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
Free Software Foundation, Inc.
*/
#include <linux/linkage.h>
#include <asm/assembler.h>
#ifdef __ARMEB__
#define al r1
#define ah r0
#else
#define al r0
#define ah r1
#endif
.pushsection .text.__ashrdi3, "ax"
ENTRY(__ashrdi3)
ENTRY(__aeabi_lasr)
subs r3, r2, #32
rsb ip, r2, #32
movmi al, al, lsr r2
movpl al, ah, asr r3
ARM( orrmi al, al, ah, lsl ip )
THUMB( lslmi r3, ah, ip )
THUMB( orrmi al, al, r3 )
mov ah, ah, asr r2
ret lr
ENDPROC(__ashrdi3)
ENDPROC(__aeabi_lasr)
.popsection