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179 lines
2.8 KiB
179 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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! __ashrsi3 |
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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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! __ashrsi3_r0 |
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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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! r0: 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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.global __ashrsi3 |
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.global __ashrsi3_r0 |
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.align 2 |
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__ashrsi3: |
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mov r5,r0 |
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.align 2 |
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__ashrsi3_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 ashrsi3_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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ashrsi3_table: |
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.byte ashrsi3_0-ashrsi3_table |
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.byte ashrsi3_1-ashrsi3_table |
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.byte ashrsi3_2-ashrsi3_table |
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.byte ashrsi3_3-ashrsi3_table |
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.byte ashrsi3_4-ashrsi3_table |
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.byte ashrsi3_5-ashrsi3_table |
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.byte ashrsi3_6-ashrsi3_table |
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.byte ashrsi3_7-ashrsi3_table |
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.byte ashrsi3_8-ashrsi3_table |
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.byte ashrsi3_9-ashrsi3_table |
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.byte ashrsi3_10-ashrsi3_table |
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.byte ashrsi3_11-ashrsi3_table |
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.byte ashrsi3_12-ashrsi3_table |
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.byte ashrsi3_13-ashrsi3_table |
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.byte ashrsi3_14-ashrsi3_table |
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.byte ashrsi3_15-ashrsi3_table |
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.byte ashrsi3_16-ashrsi3_table |
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.byte ashrsi3_17-ashrsi3_table |
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.byte ashrsi3_18-ashrsi3_table |
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.byte ashrsi3_19-ashrsi3_table |
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.byte ashrsi3_20-ashrsi3_table |
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.byte ashrsi3_21-ashrsi3_table |
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.byte ashrsi3_22-ashrsi3_table |
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.byte ashrsi3_23-ashrsi3_table |
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.byte ashrsi3_24-ashrsi3_table |
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.byte ashrsi3_25-ashrsi3_table |
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.byte ashrsi3_26-ashrsi3_table |
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.byte ashrsi3_27-ashrsi3_table |
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.byte ashrsi3_28-ashrsi3_table |
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.byte ashrsi3_29-ashrsi3_table |
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.byte ashrsi3_30-ashrsi3_table |
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.byte ashrsi3_31-ashrsi3_table |
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ashrsi3_31: |
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rotcl r0 |
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rts |
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subc r0,r0 |
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ashrsi3_30: |
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shar r0 |
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ashrsi3_29: |
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shar r0 |
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ashrsi3_28: |
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shar r0 |
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ashrsi3_27: |
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shar r0 |
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ashrsi3_26: |
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shar r0 |
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ashrsi3_25: |
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shar r0 |
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ashrsi3_24: |
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shlr16 r0 |
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shlr8 r0 |
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rts |
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exts.b r0,r0 |
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ashrsi3_23: |
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shar r0 |
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ashrsi3_22: |
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shar r0 |
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ashrsi3_21: |
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shar r0 |
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ashrsi3_20: |
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shar r0 |
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ashrsi3_19: |
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shar r0 |
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ashrsi3_18: |
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shar r0 |
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ashrsi3_17: |
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shar r0 |
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ashrsi3_16: |
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shlr16 r0 |
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rts |
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exts.w r0,r0 |
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ashrsi3_15: |
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shar r0 |
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ashrsi3_14: |
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shar r0 |
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ashrsi3_13: |
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shar r0 |
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ashrsi3_12: |
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shar r0 |
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ashrsi3_11: |
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shar r0 |
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ashrsi3_10: |
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shar r0 |
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ashrsi3_9: |
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shar r0 |
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ashrsi3_8: |
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shar r0 |
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ashrsi3_7: |
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shar r0 |
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ashrsi3_6: |
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shar r0 |
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ashrsi3_5: |
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shar r0 |
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ashrsi3_4: |
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shar r0 |
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ashrsi3_3: |
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shar r0 |
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ashrsi3_2: |
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shar r0 |
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ashrsi3_1: |
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rts |
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shar r0 |
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ashrsi3_0: |
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rts |
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nop
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