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  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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roms/u-boot/arch/sh/lib/ashrsi3.S
 
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/* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
 
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   2004, 2005, 2006
 
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   Free Software Foundation, Inc.
 
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 * SPDX-License-Identifier:     GPL-2.0+
 
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 */
 
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!! libgcc routines for the Renesas / SuperH SH CPUs.
 
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!! Contributed by Steve Chamberlain.
 
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!! sac@cygnus.com
 
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!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines
 
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!! recoded in assembly by Toshiyasu Morita
 
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!! tm@netcom.com
 
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/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and
 
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   ELF local label prefixes by J"orn Rennecke
 
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   amylaar@cygnus.com  */
 
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!
 
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! __ashrsi3
 
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!
 
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! Entry:
 
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!
 
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! r4: Value to shift
 
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! r5: Shifts
 
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!
 
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! Exit:
 
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!
 
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! r0: Result
 
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!
 
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! Destroys:
 
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!
 
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! (none)
 
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!
 
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        .global __ashrsi3
 
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        .align  2
 
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__ashrsi3:
 
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        mov     #31,r0
 
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        and     r0,r5
 
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        mova    ashrsi3_table,r0
 
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        mov.b   @(r0,r5),r5
 
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#ifdef __sh1__
 
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        add     r5,r0
 
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        jmp     @r0
 
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#else
 
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        braf    r5
 
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#endif
 
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        mov     r4,r0
 
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        .align  2
 
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ashrsi3_table:
 
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        .byte           ashrsi3_0-ashrsi3_table
 
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        .byte           ashrsi3_1-ashrsi3_table
 
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        .byte           ashrsi3_2-ashrsi3_table
 
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        .byte           ashrsi3_3-ashrsi3_table
 
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        .byte           ashrsi3_4-ashrsi3_table
 
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        .byte           ashrsi3_5-ashrsi3_table
 
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        .byte           ashrsi3_6-ashrsi3_table
 
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        .byte           ashrsi3_7-ashrsi3_table
 
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        .byte           ashrsi3_8-ashrsi3_table
 
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        .byte           ashrsi3_9-ashrsi3_table
 
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        .byte           ashrsi3_10-ashrsi3_table
 
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        .byte           ashrsi3_11-ashrsi3_table
 
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        .byte           ashrsi3_12-ashrsi3_table
 
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        .byte           ashrsi3_13-ashrsi3_table
 
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        .byte           ashrsi3_14-ashrsi3_table
 
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        .byte           ashrsi3_15-ashrsi3_table
 
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        .byte           ashrsi3_16-ashrsi3_table
 
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        .byte           ashrsi3_17-ashrsi3_table
 
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        .byte           ashrsi3_18-ashrsi3_table
 
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        .byte           ashrsi3_19-ashrsi3_table
 
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        .byte           ashrsi3_20-ashrsi3_table
 
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        .byte           ashrsi3_21-ashrsi3_table
 
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        .byte           ashrsi3_22-ashrsi3_table
 
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        .byte           ashrsi3_23-ashrsi3_table
 
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        .byte           ashrsi3_24-ashrsi3_table
 
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        .byte           ashrsi3_25-ashrsi3_table
 
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        .byte           ashrsi3_26-ashrsi3_table
 
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        .byte           ashrsi3_27-ashrsi3_table
 
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        .byte           ashrsi3_28-ashrsi3_table
 
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        .byte           ashrsi3_29-ashrsi3_table
 
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        .byte           ashrsi3_30-ashrsi3_table
 
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        .byte           ashrsi3_31-ashrsi3_table
 
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ashrsi3_31:
 
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        rotcl   r0
 
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        rts
 
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        subc    r0,r0
 
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ashrsi3_30:
 
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        shar    r0
 
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ashrsi3_29:
 
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        shar    r0
 
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ashrsi3_28:
 
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        shar    r0
 
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ashrsi3_27:
 
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        shar    r0
 
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ashrsi3_26:
 
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        shar    r0
 
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ashrsi3_25:
 
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        shar    r0
 
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ashrsi3_24:
 
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        shlr16  r0
 
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        shlr8   r0
 
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        rts
 
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        exts.b  r0,r0
 
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ashrsi3_23:
 
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        shar    r0
 
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ashrsi3_22:
 
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        shar    r0
 
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ashrsi3_21:
 
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        shar    r0
 
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ashrsi3_20:
 
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        shar    r0
 
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ashrsi3_19:
 
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        shar    r0
 
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ashrsi3_18:
 
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        shar    r0
 
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ashrsi3_17:
 
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        shar    r0
 
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ashrsi3_16:
 
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        shlr16  r0
 
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        rts
 
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        exts.w  r0,r0
 
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ashrsi3_15:
 
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        shar    r0
 
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ashrsi3_14:
 
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        shar    r0
 
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ashrsi3_13:
 
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        shar    r0
 
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ashrsi3_12:
 
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        shar    r0
 
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ashrsi3_11:
 
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        shar    r0
 
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ashrsi3_10:
 
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        shar    r0
 
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ashrsi3_9:
 
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        shar    r0
 
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ashrsi3_8:
 
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        shar    r0
 
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ashrsi3_7:
 
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        shar    r0
 
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ashrsi3_6:
 
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        shar    r0
 
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ashrsi3_5:
 
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        shar    r0
 
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ashrsi3_4:
 
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        shar    r0
 
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ashrsi3_3:
 
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        shar    r0
 
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ashrsi3_2:
 
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        shar    r0
 
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ashrsi3_1:
 
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        rts
 
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        shar    r0
 
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ashrsi3_0:
 
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        rts
 
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        nop