39 lines
1.3 KiB
ArmAsm
39 lines
1.3 KiB
ArmAsm
;; Copyright (C) 2010 Texas Instruments Incorporated
|
|
;; Contributed by Mark Salter <msalter@redhat.com>.
|
|
;;
|
|
;; 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; either version 2 of the License, or
|
|
;; (at your option) any later version.
|
|
;;
|
|
;; 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.
|
|
;;
|
|
;; You should have received a copy of the GNU General Public License
|
|
;; along with this program; if not, write to the Free Software
|
|
;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
|
|
|
|
;; uint64_t __c6xabi_llshr(uint64_t val, uint shift)
|
|
|
|
#include <linux/linkage.h>
|
|
|
|
.text
|
|
ENTRY(__c6xabi_llshr)
|
|
mv .l1x B4,A1
|
|
[!A1] b .s2 B3 ; return if zero shift count
|
|
mvk .s1 32,A0
|
|
sub .d1 A0,A1,A0
|
|
cmplt .l1 0,A0,A2
|
|
[A2] shl .s1 A5,A0,A0
|
|
nop
|
|
[!A2] neg .l1 A0,A4
|
|
|| [A2] shru .s1 A4,A1,A4
|
|
[!A2] shr .s1 A5,A4,A4
|
|
|| [A2] or .d1 A4,A0,A4
|
|
[!A2] shr .s1 A5,0x1f,A5
|
|
[A2] shr .s1 A5,A1,A5
|
|
bnop .s2 B3,5
|
|
ENDPROC(__c6xabi_llshr)
|