u-boot/arch/sh/lib/lshrsi3.S

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/* SPDX-License-Identifier: GPL-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)
!
.global __lshrsi3
.align 2
__lshrsi3:
mov #31,r0
and r0,r5
mova __lshrsi3_table,r0
mov.b @(r0,r5),r5
#ifdef __sh1__
add r5,r0
jmp @r0
#else
braf r5
#endif
mov r4,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