linux-sg2042/arch/riscv/lib/tishift.S

38 lines
507 B
ArmAsm

/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (C) 2018 Free Software Foundation, Inc.
*/
#include <linux/linkage.h>
ENTRY(__lshrti3)
beqz a2, .L1
li a5,64
sub a5,a5,a2
addi sp,sp,-16
sext.w a4,a5
blez a5, .L2
sext.w a2,a2
sll a4,a1,a4
srl a0,a0,a2
srl a1,a1,a2
or a0,a0,a4
sd a1,8(sp)
sd a0,0(sp)
ld a0,0(sp)
ld a1,8(sp)
addi sp,sp,16
ret
.L1:
ret
.L2:
negw a4,a4
srl a1,a1,a4
sd a1,0(sp)
sd zero,8(sp)
ld a0,0(sp)
ld a1,8(sp)
addi sp,sp,16
ret
ENDPROC(__lshrti3)