diff options
Diffstat (limited to '')
| -rw-r--r-- | arch/sh/lib/ashlsi3.S | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/arch/sh/lib/ashlsi3.S b/arch/sh/lib/ashlsi3.S new file mode 100644 index 000000000..4df4401cd --- /dev/null +++ b/arch/sh/lib/ashlsi3.S @@ -0,0 +1,189 @@ +/* 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 */ + +! +! __ashlsi3 +! +! Entry: +! +! r4: Value to shift +! r5: Shifts +! +! Exit: +! +! r0: Result +! +! Destroys: +! +! (none) +! +! __ashlsi3_r0 +! +! Entry: +! +! r4: Value to shift +! r0: Shifts +! +! Exit: +! +! r0: Result +! +! Destroys: +! +! (none) + + + .global __ashlsi3 + .global __ashlsi3_r0 + + .align 2 +__ashlsi3: + mov r5,r0 + .align 2 +__ashlsi3_r0: + and #31,r0 + mov.l r4,@-r15 + mov r0,r4 + mova ashlsi3_table,r0 + mov.b @(r0,r4),r4 + add r4,r0 + jmp @r0 + mov.l @r15+,r0 + + .align 2 +ashlsi3_table: + .byte ashlsi3_0-ashlsi3_table + .byte ashlsi3_1-ashlsi3_table + .byte ashlsi3_2-ashlsi3_table + .byte ashlsi3_3-ashlsi3_table + .byte ashlsi3_4-ashlsi3_table + .byte ashlsi3_5-ashlsi3_table + .byte ashlsi3_6-ashlsi3_table + .byte ashlsi3_7-ashlsi3_table + .byte ashlsi3_8-ashlsi3_table + .byte ashlsi3_9-ashlsi3_table + .byte ashlsi3_10-ashlsi3_table + .byte ashlsi3_11-ashlsi3_table + .byte ashlsi3_12-ashlsi3_table + .byte ashlsi3_13-ashlsi3_table + .byte ashlsi3_14-ashlsi3_table + .byte ashlsi3_15-ashlsi3_table + .byte ashlsi3_16-ashlsi3_table + .byte ashlsi3_17-ashlsi3_table + .byte ashlsi3_18-ashlsi3_table + .byte ashlsi3_19-ashlsi3_table + .byte ashlsi3_20-ashlsi3_table + .byte ashlsi3_21-ashlsi3_table + .byte ashlsi3_22-ashlsi3_table + .byte ashlsi3_23-ashlsi3_table + .byte ashlsi3_24-ashlsi3_table + .byte ashlsi3_25-ashlsi3_table + .byte ashlsi3_26-ashlsi3_table + .byte ashlsi3_27-ashlsi3_table + .byte ashlsi3_28-ashlsi3_table + .byte ashlsi3_29-ashlsi3_table + .byte ashlsi3_30-ashlsi3_table + .byte ashlsi3_31-ashlsi3_table + +ashlsi3_6: + shll2 r0 +ashlsi3_4: + shll2 r0 +ashlsi3_2: + rts + shll2 r0 + +ashlsi3_7: + shll2 r0 +ashlsi3_5: + shll2 r0 +ashlsi3_3: + shll2 r0 +ashlsi3_1: + rts + shll r0 + +ashlsi3_14: + shll2 r0 +ashlsi3_12: + shll2 r0 +ashlsi3_10: + shll2 r0 +ashlsi3_8: + rts + shll8 r0 + +ashlsi3_15: + shll2 r0 +ashlsi3_13: + shll2 r0 +ashlsi3_11: + shll2 r0 +ashlsi3_9: + shll8 r0 + rts + shll r0 + +ashlsi3_22: + shll2 r0 +ashlsi3_20: + shll2 r0 +ashlsi3_18: + shll2 r0 +ashlsi3_16: + rts + shll16 r0 + +ashlsi3_23: + shll2 r0 +ashlsi3_21: + shll2 r0 +ashlsi3_19: + shll2 r0 +ashlsi3_17: + shll16 r0 + rts + shll r0 + +ashlsi3_30: + shll2 r0 +ashlsi3_28: + shll2 r0 +ashlsi3_26: + shll2 r0 +ashlsi3_24: + shll16 r0 + rts + shll8 r0 + +ashlsi3_31: + shll2 r0 +ashlsi3_29: + shll2 r0 +ashlsi3_27: + shll2 r0 +ashlsi3_25: + shll16 r0 + shll8 r0 + rts + shll r0 + +ashlsi3_0: + rts + nop |