171 lines
2.8 KiB
ArmAsm
171 lines
2.8 KiB
ArmAsm
|
/* 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
|