corda/external/sgx_libm/ia32/fabsl.S
Angie Chinchilla 9441de4c38 Initial release of Intel SGX for Linux.
This release is used in conjunction with the linux-sgx-driver Intial release:
https://github.com/01org/linux-sgx-driver
commit-id: 0e865ce5e6b297a787bcdc12d98bada8174be6d7

Intel-id: 33399

Signed-off-by: Angie Chinchilla <angie.v.chinchilla@intel.com>
2016-06-23 18:51:53 -04:00

122 lines
3.4 KiB
ArmAsm

/*
* Math library
*
* Copyright (C) 2016 Intel Corporation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*
* Author Name <jingwei.zhang@intel.com>
* History:
* 03-14-2016 Initial version. numerics svn rev. 12864
*/
.file "fabsl.c"
.text
..TXTST0:
# -- Begin fabsl
.text
.align 16,0x90
.globl fabsl
fabsl:
# parameter 1: 32 + %esp
..B1.1:
..L1:
subl $28, %esp
..B1.2:
fnstcw 14(%esp)
..B1.3:
movzwl 14(%esp), %edx
movl %edx, %eax
andl $768, %eax
cmpl $768, %eax
je ..B1.15
..B1.4:
orl $-64768, %edx
movw %dx, 12(%esp)
..B1.5:
fldcw 12(%esp)
..B1.6:
movl $1, %eax
..B1.7:
movzwl 40(%esp), %edx
andl $32767, %edx
cmpl $32767, %edx
je ..B1.12
..B1.8:
fldt 32(%esp)
movzbl 41(%esp), %ecx
andl $128, %ecx
shrl $7, %ecx
call ..L2
..L2:
popl %edx
lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%edx), %edx
fmull ones@GOTOFF(%edx,%ecx,8)
fstpt (%esp)
..B1.9:
testl %eax, %eax
je ..B1.11
..B1.10:
fldcw 14(%esp)
..B1.11:
fldt (%esp)
addl $28, %esp
ret
..B1.12:
cmpl $-2147483648, 36(%esp)
jne ..B1.14
..B1.13:
cmpl $0, 32(%esp)
je ..B1.8
..B1.14:
fldt 32(%esp)
movzbl 41(%esp), %edx
fstpt (%esp)
andl $127, %edx
movb %dl, 9(%esp)
jmp ..B1.9
..B1.15:
xorl %eax, %eax
jmp ..B1.7
.align 16,0x90
.type fabsl,@function
.size fabsl,.-fabsl
.data
# -- End fabsl
.section .rodata, "a"
.align 8
.align 8
ones:
.long 0x00000000,0x3ff00000
.long 0x00000000,0xbff00000
.type ones,@object
.size ones,16
.data
.section .note.GNU-stack, ""
# End