From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- arch/c6x/lib/llshr.S | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 arch/c6x/lib/llshr.S (limited to 'arch/c6x/lib/llshr.S') diff --git a/arch/c6x/lib/llshr.S b/arch/c6x/lib/llshr.S new file mode 100644 index 00000000..fde1bec7 --- /dev/null +++ b/arch/c6x/lib/llshr.S @@ -0,0 +1,38 @@ +;; Copyright (C) 2010 Texas Instruments Incorporated +;; Contributed by Mark Salter . +;; +;; This program is free software; you can redistribute it and/or modify +;; it under the terms of the GNU General Public License as published by +;; the Free Software Foundation; either version 2 of the License, or +;; (at your option) any later version. +;; +;; This program is distributed in the hope that it will be useful, +;; but WITHOUT ANY WARRANTY; without even the implied warranty of +;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +;; GNU General Public License for more details. +;; +;; You should have received a copy of the GNU General Public License +;; along with this program; if not, write to the Free Software +;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +;; uint64_t __c6xabi_llshr(uint64_t val, uint shift) + +#include + + .text +ENTRY(__c6xabi_llshr) + 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] shr .s1 A5,A4,A4 +|| [A2] or .d1 A4,A0,A4 + [!A2] shr .s1 A5,0x1f,A5 + [A2] shr .s1 A5,A1,A5 + bnop .s2 B3,5 +ENDPROC(__c6xabi_llshr) -- cgit v1.3.1