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- /* Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
- 2004, 2005, 2006
- Free Software Foundation, Inc.
- * SPDX-License-Identifier: GPL-2.0+
- */
- !! 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
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