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Diffstat (limited to 'arch/c6x/lib/llshl.S')
| -rw-r--r-- | arch/c6x/lib/llshl.S | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/arch/c6x/lib/llshl.S b/arch/c6x/lib/llshl.S new file mode 100644 index 000000000..327249961 --- /dev/null +++ b/arch/c6x/lib/llshl.S @@ -0,0 +1,25 @@ +;; SPDX-License-Identifier: GPL-2.0-or-later +;; Copyright (C) 2010 Texas Instruments Incorporated +;; Contributed by Mark Salter <msalter@redhat.com>. +;; + +;; uint64_t __c6xabi_llshl(uint64_t val, uint shift) + +#include <linux/linkage.h> + + .text +ENTRY(__c6xabi_llshl) + mv .l1x B4,A1 + [!A1] b .s2 B3 ; just return if zero shift + mvk .s1 32,A0 + sub .d1 A0,A1,A0 + cmplt .l1 0,A0,A2 + [A2] shru .s1 A4,A0,A0 + [!A2] neg .l1 A0,A5 +|| [A2] shl .s1 A5,A1,A5 + [!A2] shl .s1 A4,A5,A5 +|| [A2] or .d1 A5,A0,A5 +|| [!A2] mvk .l1 0,A4 + [A2] shl .s1 A4,A1,A4 + bnop .s2 B3,5 +ENDPROC(__c6xabi_llshl) |