corda/external/sgx_libm/ia32/sqrtl.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

201 lines
4.9 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 "sqrtl.c"
.text
..TXTST0:
# -- Begin sqrtl
.text
.align 16,0x90
.globl sqrtl
sqrtl:
# parameter 1: 32 + %esp
..B1.1:
..L1:
subl $28, %esp
..B1.2:
fnstcw 14(%esp)
..B1.3:
movzwl 40(%esp), %ecx
andl $32767, %ecx
call ..L2
..L2:
popl %eax
lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%eax), %eax
cmpl $32767, %ecx
je ..B1.26
..B1.4:
movzbl 41(%esp), %edx
testl $128, %edx
jne ..B1.14
..B1.5:
movzwl 14(%esp), %edx
movl %edx, %eax
andl $768, %eax
cmpl $768, %eax
je ..B1.13
..B1.6:
orl $-64768, %edx
movw %dx, 12(%esp)
..B1.7:
fldcw 12(%esp)
..B1.8:
movl $1, %eax
..B1.9:
fldt 32(%esp)
fsqrt
fstpt (%esp)
..B1.10:
testl %eax, %eax
je ..B1.12
..B1.11:
fldcw 14(%esp)
..B1.12:
fldt (%esp)
addl $28, %esp
ret
..B1.13:
xorl %eax, %eax
jmp ..B1.9
..B1.14:
testl %ecx, %ecx
jne ..B1.18
..B1.15:
cmpl $0, 36(%esp)
jne ..B1.18
..B1.16:
cmpl $0, 32(%esp)
jne ..B1.18
..B1.17:
fldt 32(%esp)
addl $28, %esp
ret
..B1.18:
movzwl 14(%esp), %ecx
movl %ecx, %edx
andl $768, %edx
cmpl $768, %edx
je ..B1.25
..B1.19:
orl $-64768, %ecx
movw %cx, 12(%esp)
..B1.20:
fldcw 12(%esp)
..B1.21:
movl $1, %edx
..B1.22:
fldl _infs@GOTOFF(%eax)
testl %edx, %edx
fmull _zeros@GOTOFF(%eax)
fstpt (%esp)
je ..B1.24
..B1.23:
fldcw 14(%esp)
..B1.24:
fldt (%esp)
addl $28, %esp
ret
..B1.25:
xorl %edx, %edx
jmp ..B1.22
..B1.26:
cmpl $-2147483648, 36(%esp)
jne ..B1.28
..B1.27:
cmpl $0, 32(%esp)
je ..B1.4
..B1.28:
movzwl 14(%esp), %ecx
movl %ecx, %edx
andl $768, %edx
cmpl $768, %edx
je ..B1.34
..B1.29:
orl $-64768, %ecx
movw %cx, 12(%esp)
..B1.30:
fldcw 12(%esp)
..B1.31:
fldt 32(%esp)
fmull _ones@GOTOFF(%eax)
fstpt (%esp)
..B1.32:
fldcw 14(%esp)
..B1.33:
fldt (%esp)
addl $28, %esp
ret
..B1.34:
fldt 32(%esp)
fmull _ones@GOTOFF(%eax)
fstpt (%esp)
jmp ..B1.33
.align 16,0x90
.type sqrtl,@function
.size sqrtl,.-sqrtl
.data
# -- End sqrtl
.section .rodata, "a"
.align 4
.align 4
_infs:
.long 0
.long 2146435072
.long 0
.long 4293918720
.type _infs,@object
.size _infs,16
.align 4
_zeros:
.long 0
.long 0
.long 0
.long 2147483648
.type _zeros,@object
.size _zeros,16
.align 4
_ones:
.long 0
.long 1072693248
.long 0
.long 3220176896
.type _ones,@object
.size _ones,16
.data
.section .note.GNU-stack, ""
# End