/* SPDX-License-Identifier: GPL-2.0+ WITH GCC-exception-2.0

   Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
   2004, 2005, 2006
   Free Software Foundation, Inc.
*/

!! libgcc routines for the Renesas / SuperH SH CPUs.
!! Contributed by Steve Chamberlain.
!! sac@cygnus.com

!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines
!! recoded in assembly by Toshiyasu Morita
!! tm@netcom.com

/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and
   ELF local label prefixes by J"orn Rennecke
   amylaar@cygnus.com  */

!
! __lshrsi3
!
! Entry:
!
! r4: Value to shift
! r5: Shifts
!
! Exit:
!
! r0: Result
!
! Destroys:
!
! (none)
!
! __lshrsi3_r0
!
! Entry:
!
! r0: Value to shift
! r5: Shifts
!
! Exit:
!
! r0: Result
!
! Destroys:
!
! (none)
!
        .global __lshrsi3
        .global __lshrsi3_r0
        
        .align  2
__lshrsi3:
        mov     r5,r0
        .align  2
__lshrsi3_r0:
        and     #31,r0
        mov.l   r4,@-r15
        mov     r0,r4
        mova    lshrsi3_table,r0
        mov.b   @(r0,r4),r4
        add     r4,r0
        jmp     @r0
        mov.l   @r15+,r0

        .align  2
lshrsi3_table:
        .byte           lshrsi3_0-lshrsi3_table
        .byte           lshrsi3_1-lshrsi3_table
        .byte           lshrsi3_2-lshrsi3_table
        .byte           lshrsi3_3-lshrsi3_table
        .byte           lshrsi3_4-lshrsi3_table
        .byte           lshrsi3_5-lshrsi3_table
        .byte           lshrsi3_6-lshrsi3_table
        .byte           lshrsi3_7-lshrsi3_table
        .byte           lshrsi3_8-lshrsi3_table
        .byte           lshrsi3_9-lshrsi3_table
        .byte           lshrsi3_10-lshrsi3_table
        .byte           lshrsi3_11-lshrsi3_table
        .byte           lshrsi3_12-lshrsi3_table
        .byte           lshrsi3_13-lshrsi3_table
        .byte           lshrsi3_14-lshrsi3_table
        .byte           lshrsi3_15-lshrsi3_table
        .byte           lshrsi3_16-lshrsi3_table
        .byte           lshrsi3_17-lshrsi3_table
        .byte           lshrsi3_18-lshrsi3_table
        .byte           lshrsi3_19-lshrsi3_table
        .byte           lshrsi3_20-lshrsi3_table
        .byte           lshrsi3_21-lshrsi3_table
        .byte           lshrsi3_22-lshrsi3_table
        .byte           lshrsi3_23-lshrsi3_table
        .byte           lshrsi3_24-lshrsi3_table
        .byte           lshrsi3_25-lshrsi3_table
        .byte           lshrsi3_26-lshrsi3_table
        .byte           lshrsi3_27-lshrsi3_table
        .byte           lshrsi3_28-lshrsi3_table
        .byte           lshrsi3_29-lshrsi3_table
        .byte           lshrsi3_30-lshrsi3_table
        .byte           lshrsi3_31-lshrsi3_table

lshrsi3_6:
        shlr2   r0
lshrsi3_4:
        shlr2   r0
lshrsi3_2:
        rts
        shlr2   r0

lshrsi3_7:
        shlr2   r0
lshrsi3_5:
        shlr2   r0
lshrsi3_3:
        shlr2   r0
lshrsi3_1:
        rts
        shlr    r0

lshrsi3_14:
        shlr2   r0
lshrsi3_12:
        shlr2   r0
lshrsi3_10:
        shlr2   r0
lshrsi3_8:
        rts
        shlr8   r0

lshrsi3_15:
        shlr2   r0
lshrsi3_13:
        shlr2   r0
lshrsi3_11:
        shlr2   r0
lshrsi3_9:
        shlr8   r0
        rts
        shlr    r0

lshrsi3_22:
        shlr2   r0
lshrsi3_20:
        shlr2   r0
lshrsi3_18:
        shlr2   r0
lshrsi3_16:
        rts
        shlr16  r0

lshrsi3_23:
        shlr2   r0
lshrsi3_21:
        shlr2   r0
lshrsi3_19:
        shlr2   r0
lshrsi3_17:
        shlr16  r0
        rts
        shlr    r0

lshrsi3_30:
        shlr2   r0
lshrsi3_28:
        shlr2   r0
lshrsi3_26:
        shlr2   r0
lshrsi3_24:
        shlr16  r0
        rts
        shlr8   r0

lshrsi3_31:
        shlr2   r0
lshrsi3_29:
        shlr2   r0
lshrsi3_27:
        shlr2   r0
lshrsi3_25:
        shlr16  r0
        shlr8   r0
        rts
        shlr    r0

lshrsi3_0:
        rts
        nop