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- /* 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.
- !! [email protected]
- !! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines
- !! recoded in assembly by Toshiyasu Morita
- !! [email protected]
- /* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and
- ELF local label prefixes by J"orn Rennecke
- [email protected] */
- !
- ! __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
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