| /* 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. |
| !! 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) |
| ! |
| ! __lshrsi3_r0 |
| ! |
| ! Entry: |
| ! |
| ! r0: Value to shift |
| ! r5: Shifts |
| ! |
| ! Exit: |
| ! |
| ! r0: Result |
| ! |
| ! Destroys: |
| ! |
| ! (none) |
| ! |
| .global __lshrsi3 |
| .global __lshrsi3_r0 |
| |
| .align 2 |
| __lshrsi3: |
| mov r5,r0 |
| .align 2 |
| __lshrsi3_r0: |
| and #31,r0 |
| mov.l r4,@-r15 |
| mov r0,r4 |
| mova lshrsi3_table,r0 |
| mov.b @(r0,r4),r4 |
| add r4,r0 |
| jmp @r0 |
| mov.l @r15+,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 |
