/* 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  */

!
! __ashrsi3
!
! Entry:
!
! r4: Value to shift
! r5: Shifts
!
! Exit:
!
! r0: Result
!
! Destroys:
!
! (none)
!
! __ashrsi3_r0
!
! Entry:
!
! r4: Value to shift
! r0: Shifts
!
! Exit:
!
! r0: Result
!
! Destroys:
!
! (none)

        .global __ashrsi3
        .global __ashrsi3_r0
        
        .align  2
__ashrsi3:
        mov     r5,r0
        .align  2
__ashrsi3_r0:
        and     #31,r0
        mov.l   r4,@-r15
        mov     r0,r4
        mova    ashrsi3_table,r0
        mov.b   @(r0,r4),r4
        add     r4,r0
        jmp     @r0
        mov.l   @r15+,r0

        .align  2
ashrsi3_table:
        .byte           ashrsi3_0-ashrsi3_table
        .byte           ashrsi3_1-ashrsi3_table
        .byte           ashrsi3_2-ashrsi3_table
        .byte           ashrsi3_3-ashrsi3_table
        .byte           ashrsi3_4-ashrsi3_table
        .byte           ashrsi3_5-ashrsi3_table
        .byte           ashrsi3_6-ashrsi3_table
        .byte           ashrsi3_7-ashrsi3_table
        .byte           ashrsi3_8-ashrsi3_table
        .byte           ashrsi3_9-ashrsi3_table
        .byte           ashrsi3_10-ashrsi3_table
        .byte           ashrsi3_11-ashrsi3_table
        .byte           ashrsi3_12-ashrsi3_table
        .byte           ashrsi3_13-ashrsi3_table
        .byte           ashrsi3_14-ashrsi3_table
        .byte           ashrsi3_15-ashrsi3_table
        .byte           ashrsi3_16-ashrsi3_table
        .byte           ashrsi3_17-ashrsi3_table
        .byte           ashrsi3_18-ashrsi3_table
        .byte           ashrsi3_19-ashrsi3_table
        .byte           ashrsi3_20-ashrsi3_table
        .byte           ashrsi3_21-ashrsi3_table
        .byte           ashrsi3_22-ashrsi3_table
        .byte           ashrsi3_23-ashrsi3_table
        .byte           ashrsi3_24-ashrsi3_table
        .byte           ashrsi3_25-ashrsi3_table
        .byte           ashrsi3_26-ashrsi3_table
        .byte           ashrsi3_27-ashrsi3_table
        .byte           ashrsi3_28-ashrsi3_table
        .byte           ashrsi3_29-ashrsi3_table
        .byte           ashrsi3_30-ashrsi3_table
        .byte           ashrsi3_31-ashrsi3_table

ashrsi3_31:
        rotcl   r0
        rts
        subc    r0,r0

ashrsi3_30:
        shar    r0
ashrsi3_29:
        shar    r0
ashrsi3_28:
        shar    r0
ashrsi3_27:
        shar    r0
ashrsi3_26:
        shar    r0
ashrsi3_25:
        shar    r0
ashrsi3_24:
        shlr16  r0
        shlr8   r0
        rts
        exts.b  r0,r0

ashrsi3_23:
        shar    r0
ashrsi3_22:
        shar    r0
ashrsi3_21:
        shar    r0
ashrsi3_20:
        shar    r0
ashrsi3_19:
        shar    r0
ashrsi3_18:
        shar    r0
ashrsi3_17:
        shar    r0
ashrsi3_16:
        shlr16  r0
        rts
        exts.w  r0,r0

ashrsi3_15:
        shar    r0
ashrsi3_14:
        shar    r0
ashrsi3_13:
        shar    r0
ashrsi3_12:
        shar    r0
ashrsi3_11:
        shar    r0
ashrsi3_10:
        shar    r0
ashrsi3_9:
        shar    r0
ashrsi3_8:
        shar    r0
ashrsi3_7:
        shar    r0
ashrsi3_6:
        shar    r0
ashrsi3_5:
        shar    r0
ashrsi3_4:
        shar    r0
ashrsi3_3:
        shar    r0
ashrsi3_2:
        shar    r0
ashrsi3_1:
        rts
        shar    r0

ashrsi3_0:
        rts
        nop