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Diffstat (limited to '')
| -rw-r--r-- | arch/c6x/lib/llshru.S | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/arch/c6x/lib/llshru.S b/arch/c6x/lib/llshru.S new file mode 100644 index 000000000..103128f50 --- /dev/null +++ b/arch/c6x/lib/llshru.S @@ -0,0 +1,26 @@ +;; SPDX-License-Identifier: GPL-2.0-or-later +;; Copyright (C) 2010 Texas Instruments Incorporated +;; Contributed by Mark Salter <msalter@redhat.com>. +;; + +;; uint64_t __c6xabi_llshru(uint64_t val, uint shift) + +#include <linux/linkage.h> + + .text +ENTRY(__c6xabi_llshru) + mv .l1x B4,A1 + [!A1] b .s2 B3 ; return if zero shift count + mvk .s1 32,A0 + sub .d1 A0,A1,A0 + cmplt .l1 0,A0,A2 + [A2] shl .s1 A5,A0,A0 + nop + [!A2] neg .l1 A0,A4 +|| [A2] shru .s1 A4,A1,A4 + [!A2] shru .s1 A5,A4,A4 +|| [A2] or .d1 A4,A0,A4 +|| [!A2] mvk .l1 0,A5 + [A2] shru .s1 A5,A1,A5 + bnop .s2 B3,5 +ENDPROC(__c6xabi_llshru) |