corda/external/sgx_libm/ia32/frexpl.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

172 lines
4.6 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 "frexpl.c"
.text
..TXTST0:
# -- Begin frexpl
.text
.align 16,0x90
.globl frexpl
frexpl:
# parameter 1: 8 + %ebp
# parameter 2: 20 + %ebp
..B1.1:
..L1:
pushl %ebp
movl %esp, %ebp
andl $-16, %esp
subl $16, %esp
movl 20(%ebp), %edx
..B1.2:
fnstcw 14(%esp)
..B1.3:
movzwl 16(%ebp), %ecx
movl %ecx, %eax
andl $32767, %eax
cmpl $32767, %eax
je ..B1.16
..B1.4:
testl %eax, %eax
jne ..B1.14
..B1.5:
cmpl $0, 12(%ebp)
jne ..B1.8
..B1.6:
cmpl $0, 8(%ebp)
jne ..B1.8
..B1.7:
fldt 8(%ebp)
movl $0, (%edx)
movl %ebp, %esp
popl %ebp
ret
..B1.8:
movzwl 14(%esp), %eax
movl %eax, %ecx
andl $768, %ecx
cmpl $768, %ecx
call ..L2
..L2:
popl %ecx
lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%ecx), %ecx
je ..B1.15
..B1.9:
orl $-64768, %eax
movl $0, (%edx)
movw %ax, 12(%esp)
..B1.10:
fldcw 12(%esp)
..B1.11:
fldt 8(%ebp)
fmull _TWO_75@GOTOFF(%ecx)
fstpt 8(%ebp)
..B1.12:
fldcw 14(%esp)
..B1.13:
movzwl 16(%ebp), %ecx
movl %ecx, %eax
andl $-32768, %ecx
andl $32767, %eax
orl $-49154, %ecx
addl $-16457, %eax
movw %cx, 16(%ebp)
fldt 8(%ebp)
movl %eax, (%edx)
movl %ebp, %esp
popl %ebp
ret
..B1.14:
andl $-32768, %ecx
addl $-16382, %eax
orl $-49154, %ecx
movw %cx, 16(%ebp)
fldt 8(%ebp)
movl %eax, (%edx)
movl %ebp, %esp
popl %ebp
ret
..B1.15:
fldt 8(%ebp)
fmull _TWO_75@GOTOFF(%ecx)
fstpt 8(%ebp)
jmp ..B1.13
..B1.16:
movl $0, (%edx)
movzwl 14(%esp), %edx
movl %edx, %eax
andl $768, %eax
cmpl $768, %eax
je ..B1.22
..B1.17:
orl $-64768, %edx
movw %dx, 12(%esp)
..B1.18:
fldcw 12(%esp)
..B1.19:
fldt 8(%ebp)
fstpt (%esp)
..B1.20:
fldcw 14(%esp)
..B1.21:
fldt (%esp)
movl %ebp, %esp
popl %ebp
ret
..B1.22:
fldt 8(%ebp)
fstpt (%esp)
jmp ..B1.21
.align 16,0x90
.type frexpl,@function
.size frexpl,.-frexpl
.data
# -- End frexpl
.section .rodata, "a"
.align 4
.align 4
_TWO_75:
.long 0
.long 1151336448
.long 0
.long 994050048
.type _TWO_75,@object
.size _TWO_75,16
.data
.section .note.GNU-stack, ""
# End