WIP FPC-III support
[linux/fpc-iii.git] / arch / c6x / lib / llshru.S
blob103128f50770abd88a9ff8970f9abd893c90bcd4
1 ;; SPDX-License-Identifier: GPL-2.0-or-later
2 ;;  Copyright (C) 2010 Texas Instruments Incorporated
3 ;;  Contributed by Mark Salter <msalter@redhat.com>.
4 ;;
6 ;;  uint64_t __c6xabi_llshru(uint64_t val, uint shift)
8 #include <linux/linkage.h>
10         .text
11 ENTRY(__c6xabi_llshru)
12          mv     .l1x    B4,A1
13    [!A1] b      .s2     B3              ; return if zero shift count
14          mvk    .s1     32,A0
15          sub    .d1     A0,A1,A0
16          cmplt  .l1     0,A0,A2
17    [A2]  shl    .s1     A5,A0,A0
18          nop
19    [!A2] neg    .l1     A0,A4
20 || [A2]  shru   .s1     A4,A1,A4
21    [!A2] shru   .s1     A5,A4,A4
22 || [A2]  or     .d1     A4,A0,A4
23 || [!A2] mvk    .l1     0,A5
24    [A2]  shru   .s1     A5,A1,A5
25          bnop   .s2     B3,5
26 ENDPROC(__c6xabi_llshru)