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188 lines
2.8 KiB
188 lines
2.8 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH GCC-exception-2.0 |
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Copyright (C) 1994, 1995, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
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2004, 2005, 2006 |
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Free Software Foundation, Inc. |
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*/ |
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!! libgcc routines for the Renesas / SuperH SH CPUs. |
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!! Contributed by Steve Chamberlain. |
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!! sac@cygnus.com |
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!! ashiftrt_r4_x, ___ashrsi3, ___ashlsi3, ___lshrsi3 routines |
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!! recoded in assembly by Toshiyasu Morita |
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!! tm@netcom.com |
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/* SH2 optimizations for ___ashrsi3, ___ashlsi3, ___lshrsi3 and |
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ELF local label prefixes by J"orn Rennecke |
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amylaar@cygnus.com */ |
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! |
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! __lshrsi3 |
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! |
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! Entry: |
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! |
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! r4: Value to shift |
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! r5: Shifts |
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! |
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! Exit: |
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! |
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! r0: Result |
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! |
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! Destroys: |
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! |
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! (none) |
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! |
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! __lshrsi3_r0 |
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! |
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! Entry: |
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! |
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! r0: Value to shift |
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! r5: Shifts |
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! |
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! Exit: |
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! |
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! r0: Result |
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! |
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! Destroys: |
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! |
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! (none) |
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! |
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.global __lshrsi3 |
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.global __lshrsi3_r0 |
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.align 2 |
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__lshrsi3: |
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mov r5,r0 |
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.align 2 |
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__lshrsi3_r0: |
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and #31,r0 |
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mov.l r4,@-r15 |
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mov r0,r4 |
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mova lshrsi3_table,r0 |
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mov.b @(r0,r4),r4 |
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add r4,r0 |
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jmp @r0 |
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mov.l @r15+,r0 |
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.align 2 |
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lshrsi3_table: |
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.byte lshrsi3_0-lshrsi3_table |
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.byte lshrsi3_1-lshrsi3_table |
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.byte lshrsi3_2-lshrsi3_table |
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.byte lshrsi3_3-lshrsi3_table |
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.byte lshrsi3_4-lshrsi3_table |
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.byte lshrsi3_5-lshrsi3_table |
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.byte lshrsi3_6-lshrsi3_table |
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.byte lshrsi3_7-lshrsi3_table |
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.byte lshrsi3_8-lshrsi3_table |
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.byte lshrsi3_9-lshrsi3_table |
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.byte lshrsi3_10-lshrsi3_table |
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.byte lshrsi3_11-lshrsi3_table |
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.byte lshrsi3_12-lshrsi3_table |
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.byte lshrsi3_13-lshrsi3_table |
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.byte lshrsi3_14-lshrsi3_table |
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.byte lshrsi3_15-lshrsi3_table |
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.byte lshrsi3_16-lshrsi3_table |
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.byte lshrsi3_17-lshrsi3_table |
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.byte lshrsi3_18-lshrsi3_table |
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.byte lshrsi3_19-lshrsi3_table |
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.byte lshrsi3_20-lshrsi3_table |
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.byte lshrsi3_21-lshrsi3_table |
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.byte lshrsi3_22-lshrsi3_table |
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.byte lshrsi3_23-lshrsi3_table |
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.byte lshrsi3_24-lshrsi3_table |
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.byte lshrsi3_25-lshrsi3_table |
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.byte lshrsi3_26-lshrsi3_table |
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.byte lshrsi3_27-lshrsi3_table |
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.byte lshrsi3_28-lshrsi3_table |
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.byte lshrsi3_29-lshrsi3_table |
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.byte lshrsi3_30-lshrsi3_table |
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.byte lshrsi3_31-lshrsi3_table |
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lshrsi3_6: |
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shlr2 r0 |
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lshrsi3_4: |
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shlr2 r0 |
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lshrsi3_2: |
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rts |
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shlr2 r0 |
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lshrsi3_7: |
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shlr2 r0 |
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lshrsi3_5: |
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shlr2 r0 |
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lshrsi3_3: |
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shlr2 r0 |
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lshrsi3_1: |
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rts |
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shlr r0 |
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lshrsi3_14: |
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shlr2 r0 |
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lshrsi3_12: |
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shlr2 r0 |
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lshrsi3_10: |
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shlr2 r0 |
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lshrsi3_8: |
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rts |
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shlr8 r0 |
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lshrsi3_15: |
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shlr2 r0 |
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lshrsi3_13: |
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shlr2 r0 |
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lshrsi3_11: |
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shlr2 r0 |
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lshrsi3_9: |
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shlr8 r0 |
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rts |
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shlr r0 |
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lshrsi3_22: |
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shlr2 r0 |
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lshrsi3_20: |
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shlr2 r0 |
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lshrsi3_18: |
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shlr2 r0 |
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lshrsi3_16: |
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rts |
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shlr16 r0 |
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lshrsi3_23: |
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shlr2 r0 |
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lshrsi3_21: |
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shlr2 r0 |
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lshrsi3_19: |
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shlr2 r0 |
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lshrsi3_17: |
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shlr16 r0 |
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rts |
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shlr r0 |
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lshrsi3_30: |
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shlr2 r0 |
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lshrsi3_28: |
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shlr2 r0 |
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lshrsi3_26: |
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shlr2 r0 |
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lshrsi3_24: |
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shlr16 r0 |
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rts |
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shlr8 r0 |
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lshrsi3_31: |
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shlr2 r0 |
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lshrsi3_29: |
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shlr2 r0 |
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lshrsi3_27: |
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shlr2 r0 |
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lshrsi3_25: |
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shlr16 r0 |
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shlr8 r0 |
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rts |
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shlr r0 |
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lshrsi3_0: |
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rts |
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nop
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