cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ashldi3.S (1680B)


      1/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
      2   Free Software Foundation, Inc.
      3
      4This file is free software; you can redistribute it and/or modify it
      5under the terms of the GNU General Public License as published by the
      6Free Software Foundation; either version 2, or (at your option) any
      7later version.
      8
      9In addition to the permissions in the GNU General Public License, the
     10Free Software Foundation gives you unlimited permission to link the
     11compiled version of this file into combinations with other programs,
     12and to distribute those combinations without any restriction coming
     13from the use of this file.  (The General Public License restrictions
     14do apply in other respects; for example, they cover modification of
     15the file, and distribution when not linked into a combine
     16executable.)
     17
     18This file is distributed in the hope that it will be useful, but
     19WITHOUT ANY WARRANTY; without even the implied warranty of
     20MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     21General Public License for more details.
     22
     23You should have received a copy of the GNU General Public License
     24along with this program; see the file COPYING.  If not, write to
     25the Free Software Foundation, 51 Franklin Street, Fifth Floor,
     26Boston, MA 02110-1301, USA.  */
     27
     28
     29#include <linux/linkage.h>
     30#include <asm/assembler.h>
     31
     32#ifdef __ARMEB__
     33#define al r1
     34#define ah r0
     35#else
     36#define al r0
     37#define ah r1
     38#endif
     39
     40ENTRY(__ashldi3)
     41ENTRY(__aeabi_llsl)
     42
     43	subs	r3, r2, #32
     44	rsb	ip, r2, #32
     45	movmi	ah, ah, lsl r2
     46	movpl	ah, al, lsl r3
     47 ARM(	orrmi	ah, ah, al, lsr ip	)
     48 THUMB(	lsrmi	r3, al, ip		)
     49 THUMB(	orrmi	ah, ah, r3		)
     50	mov	al, al, lsl r2
     51	ret	lr
     52
     53ENDPROC(__ashldi3)
     54ENDPROC(__aeabi_llsl)