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189 lines
2.8 KiB
189 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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! __ashlsi3 |
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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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! __ashlsi3_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 __ashlsi3 |
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.global __ashlsi3_r0 |
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.align 2 |
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__ashlsi3: |
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mov r5,r0 |
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.align 2 |
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__ashlsi3_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 ashlsi3_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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ashlsi3_table: |
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.byte ashlsi3_0-ashlsi3_table |
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.byte ashlsi3_1-ashlsi3_table |
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.byte ashlsi3_2-ashlsi3_table |
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.byte ashlsi3_3-ashlsi3_table |
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.byte ashlsi3_4-ashlsi3_table |
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.byte ashlsi3_5-ashlsi3_table |
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.byte ashlsi3_6-ashlsi3_table |
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.byte ashlsi3_7-ashlsi3_table |
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.byte ashlsi3_8-ashlsi3_table |
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.byte ashlsi3_9-ashlsi3_table |
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.byte ashlsi3_10-ashlsi3_table |
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.byte ashlsi3_11-ashlsi3_table |
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.byte ashlsi3_12-ashlsi3_table |
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.byte ashlsi3_13-ashlsi3_table |
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.byte ashlsi3_14-ashlsi3_table |
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.byte ashlsi3_15-ashlsi3_table |
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.byte ashlsi3_16-ashlsi3_table |
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.byte ashlsi3_17-ashlsi3_table |
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.byte ashlsi3_18-ashlsi3_table |
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.byte ashlsi3_19-ashlsi3_table |
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.byte ashlsi3_20-ashlsi3_table |
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.byte ashlsi3_21-ashlsi3_table |
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.byte ashlsi3_22-ashlsi3_table |
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.byte ashlsi3_23-ashlsi3_table |
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.byte ashlsi3_24-ashlsi3_table |
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.byte ashlsi3_25-ashlsi3_table |
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.byte ashlsi3_26-ashlsi3_table |
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.byte ashlsi3_27-ashlsi3_table |
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.byte ashlsi3_28-ashlsi3_table |
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.byte ashlsi3_29-ashlsi3_table |
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.byte ashlsi3_30-ashlsi3_table |
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.byte ashlsi3_31-ashlsi3_table |
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ashlsi3_6: |
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shll2 r0 |
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ashlsi3_4: |
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shll2 r0 |
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ashlsi3_2: |
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rts |
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shll2 r0 |
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ashlsi3_7: |
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shll2 r0 |
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ashlsi3_5: |
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shll2 r0 |
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ashlsi3_3: |
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shll2 r0 |
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ashlsi3_1: |
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rts |
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shll r0 |
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ashlsi3_14: |
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shll2 r0 |
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ashlsi3_12: |
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shll2 r0 |
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ashlsi3_10: |
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shll2 r0 |
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ashlsi3_8: |
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rts |
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shll8 r0 |
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ashlsi3_15: |
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shll2 r0 |
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ashlsi3_13: |
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shll2 r0 |
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ashlsi3_11: |
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shll2 r0 |
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ashlsi3_9: |
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shll8 r0 |
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rts |
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shll r0 |
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ashlsi3_22: |
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shll2 r0 |
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ashlsi3_20: |
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shll2 r0 |
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ashlsi3_18: |
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shll2 r0 |
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ashlsi3_16: |
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rts |
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shll16 r0 |
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ashlsi3_23: |
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shll2 r0 |
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ashlsi3_21: |
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shll2 r0 |
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ashlsi3_19: |
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shll2 r0 |
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ashlsi3_17: |
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shll16 r0 |
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rts |
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shll r0 |
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ashlsi3_30: |
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shll2 r0 |
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ashlsi3_28: |
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shll2 r0 |
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ashlsi3_26: |
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shll2 r0 |
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ashlsi3_24: |
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shll16 r0 |
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rts |
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shll8 r0 |
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ashlsi3_31: |
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shll2 r0 |
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ashlsi3_29: |
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shll2 r0 |
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ashlsi3_27: |
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shll2 r0 |
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ashlsi3_25: |
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shll16 r0 |
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shll8 r0 |
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rts |
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shll r0 |
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ashlsi3_0: |
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rts |
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nop
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