corda/external/sgx_libm/intel64/copysignl.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

120 lines
3.3 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 "copysignl.c"
.text
..TXTST0:
# -- Begin copysignl
.text
.align 16,0x90
.globl copysignl
copysignl:
# parameter 1: 64 + %rsp
# parameter 2: 80 + %rsp
..B1.1:
.cfi_startproc
..___tag_value_copysignl.1:
..L2:
subq $56, %rsp
.cfi_def_cfa_offset 64
xorb %sil, %sil
fldt 64(%rsp)
fstpt (%rsp)
..B1.2:
fnstcw 50(%rsp)
..B1.3:
movzwl 50(%rsp), %edx
movl %edx, %eax
andl $768, %eax
cmpl $768, %eax
je ..B1.7
..B1.4:
orl $-64768, %edx
movw %dx, 48(%rsp)
..B1.5:
fldcw 48(%rsp)
..B1.6:
movb $1, %sil
..B1.7:
fldt 80(%rsp)
lea _ones(%rip), %rax
fldt (%rsp)
movb 89(%rsp), %dl
andb $-128, %dl
fldl (%rax)
fmul %st, %st(1)
fxch %st(1)
fstpt 32(%rsp)
fmulp %st, %st(1)
movb 41(%rsp), %cl
andb $127, %cl
orb %dl, %cl
fstpt 16(%rsp)
testb %sil, %sil
movb %cl, 41(%rsp)
je ..B1.9
..B1.8:
fldcw 50(%rsp)
..B1.9:
fldt 32(%rsp)
addq $56, %rsp
.cfi_def_cfa_offset 8
ret
.align 16,0x90
.cfi_endproc
.type copysignl,@function
.size copysignl,.-copysignl
.data
# -- End copysignl
.section .rodata, "a"
.align 4
.align 4
_ones:
.long 0
.long 1072693248
.long 0
.long 3220176896
.type _ones,@object
.size _ones,16
.data
.section .note.GNU-stack, ""
// -- Begin DWARF2 SEGMENT .eh_frame
.section .eh_frame,"a",@progbits
.eh_frame_seg:
.align 1
# End