linux/arch/x86/math-emu/mul_Xsig.S
Jiri Slaby 6d685e5318 x86/asm/32: Change all ENTRY+ENDPROC to SYM_FUNC_*
These are all functions which are invoked from elsewhere, so annotate
them as global using the new SYM_FUNC_START and their ENDPROC's by
SYM_FUNC_END.

Now, ENTRY/ENDPROC can be forced to be undefined on X86, so do so.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Allison Randal <allison@lohutok.net>
Cc: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Andy Shevchenko <andy@infradead.org>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Cc: Bill Metzenthen <billm@melbpc.org.au>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: Darren Hart <dvhart@infradead.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: linux-arch@vger.kernel.org
Cc: linux-crypto@vger.kernel.org
Cc: linux-efi <linux-efi@vger.kernel.org>
Cc: linux-efi@vger.kernel.org
Cc: linux-pm@vger.kernel.org
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Matt Fleming <matt@codeblueprint.co.uk>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: platform-driver-x86@vger.kernel.org
Cc: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Will Deacon <will@kernel.org>
Cc: x86-ml <x86@kernel.org>
Link: https://lkml.kernel.org/r/20191011115108.12392-28-jslaby@suse.cz
2019-10-18 12:03:43 +02:00

180 lines
4.2 KiB
ArmAsm

/* SPDX-License-Identifier: GPL-2.0 */
/*---------------------------------------------------------------------------+
| mul_Xsig.S |
| |
| Multiply a 12 byte fixed point number by another fixed point number. |
| |
| Copyright (C) 1992,1994,1995 |
| W. Metzenthen, 22 Parker St, Ormond, Vic 3163, |
| Australia. E-mail billm@jacobi.maths.monash.edu.au |
| |
| Call from C as: |
| void mul32_Xsig(Xsig *x, unsigned b) |
| |
| void mul64_Xsig(Xsig *x, unsigned long long *b) |
| |
| void mul_Xsig_Xsig(Xsig *x, unsigned *b) |
| |
| The result is neither rounded nor normalized, and the ls bit or so may |
| be wrong. |
| |
+---------------------------------------------------------------------------*/
.file "mul_Xsig.S"
#include "fpu_emu.h"
.text
SYM_FUNC_START(mul32_Xsig)
pushl %ebp
movl %esp,%ebp
subl $16,%esp
pushl %esi
movl PARAM1,%esi
movl PARAM2,%ecx
xor %eax,%eax
movl %eax,-4(%ebp)
movl %eax,-8(%ebp)
movl (%esi),%eax /* lsl of Xsig */
mull %ecx /* msl of b */
movl %edx,-12(%ebp)
movl 4(%esi),%eax /* midl of Xsig */
mull %ecx /* msl of b */
addl %eax,-12(%ebp)
adcl %edx,-8(%ebp)
adcl $0,-4(%ebp)
movl 8(%esi),%eax /* msl of Xsig */
mull %ecx /* msl of b */
addl %eax,-8(%ebp)
adcl %edx,-4(%ebp)
movl -12(%ebp),%eax
movl %eax,(%esi)
movl -8(%ebp),%eax
movl %eax,4(%esi)
movl -4(%ebp),%eax
movl %eax,8(%esi)
popl %esi
leave
ret
SYM_FUNC_END(mul32_Xsig)
SYM_FUNC_START(mul64_Xsig)
pushl %ebp
movl %esp,%ebp
subl $16,%esp
pushl %esi
movl PARAM1,%esi
movl PARAM2,%ecx
xor %eax,%eax
movl %eax,-4(%ebp)
movl %eax,-8(%ebp)
movl (%esi),%eax /* lsl of Xsig */
mull 4(%ecx) /* msl of b */
movl %edx,-12(%ebp)
movl 4(%esi),%eax /* midl of Xsig */
mull (%ecx) /* lsl of b */
addl %edx,-12(%ebp)
adcl $0,-8(%ebp)
adcl $0,-4(%ebp)
movl 4(%esi),%eax /* midl of Xsig */
mull 4(%ecx) /* msl of b */
addl %eax,-12(%ebp)
adcl %edx,-8(%ebp)
adcl $0,-4(%ebp)
movl 8(%esi),%eax /* msl of Xsig */
mull (%ecx) /* lsl of b */
addl %eax,-12(%ebp)
adcl %edx,-8(%ebp)
adcl $0,-4(%ebp)
movl 8(%esi),%eax /* msl of Xsig */
mull 4(%ecx) /* msl of b */
addl %eax,-8(%ebp)
adcl %edx,-4(%ebp)
movl -12(%ebp),%eax
movl %eax,(%esi)
movl -8(%ebp),%eax
movl %eax,4(%esi)
movl -4(%ebp),%eax
movl %eax,8(%esi)
popl %esi
leave
ret
SYM_FUNC_END(mul64_Xsig)
SYM_FUNC_START(mul_Xsig_Xsig)
pushl %ebp
movl %esp,%ebp
subl $16,%esp
pushl %esi
movl PARAM1,%esi
movl PARAM2,%ecx
xor %eax,%eax
movl %eax,-4(%ebp)
movl %eax,-8(%ebp)
movl (%esi),%eax /* lsl of Xsig */
mull 8(%ecx) /* msl of b */
movl %edx,-12(%ebp)
movl 4(%esi),%eax /* midl of Xsig */
mull 4(%ecx) /* midl of b */
addl %edx,-12(%ebp)
adcl $0,-8(%ebp)
adcl $0,-4(%ebp)
movl 8(%esi),%eax /* msl of Xsig */
mull (%ecx) /* lsl of b */
addl %edx,-12(%ebp)
adcl $0,-8(%ebp)
adcl $0,-4(%ebp)
movl 4(%esi),%eax /* midl of Xsig */
mull 8(%ecx) /* msl of b */
addl %eax,-12(%ebp)
adcl %edx,-8(%ebp)
adcl $0,-4(%ebp)
movl 8(%esi),%eax /* msl of Xsig */
mull 4(%ecx) /* midl of b */
addl %eax,-12(%ebp)
adcl %edx,-8(%ebp)
adcl $0,-4(%ebp)
movl 8(%esi),%eax /* msl of Xsig */
mull 8(%ecx) /* msl of b */
addl %eax,-8(%ebp)
adcl %edx,-4(%ebp)
movl -12(%ebp),%edx
movl %edx,(%esi)
movl -8(%ebp),%edx
movl %edx,4(%esi)
movl -4(%ebp),%edx
movl %edx,8(%esi)
popl %esi
leave
ret
SYM_FUNC_END(mul_Xsig_Xsig)