linux_dsm_epyc7002/arch/riscv/lib/tishift.S
Olof Johansson a266cdba17
RISC-V: lib: minor asm cleanup
Fix tab/space conversion and use ENTRY/ENDPROC macros.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
2018-12-21 08:17:02 -08:00

46 lines
917 B
ArmAsm

/*
* Copyright (C) 2018 Free Software Foundation, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation, version 2.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#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)