corda/external/sgx_libm/ia32/modfl.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

264 lines
6.6 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 "modfl.c"
.text
..TXTST0:
# -- Begin modfl
.text
.align 16,0x90
.globl modfl
modfl:
# parameter 1: 8 + %ebp
# parameter 2: 20 + %ebp
..B1.1:
..L1:
pushl %ebp
movl %esp, %ebp
andl $-16, %esp
pushl %esi
pushl %ebx
subl $24, %esp
movl 20(%ebp), %edx
..B1.2:
fnstcw 14(%esp)
..B1.3:
movzwl 16(%ebp), %ecx
andl $32767, %ecx
call ..L2
..L2:
popl %eax
lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%eax), %eax
cmpl $16446, %ecx
jge ..B1.21
..B1.4:
cmpl $16383, %ecx
jl ..B1.16
..B1.5:
fldt 8(%ebp)
cmpl $16415, %ecx
fstpt (%esp)
jge ..B1.7
..B1.6:
negl %ecx
movl $-1, %ebx
addl $30, %ecx
shll %cl, %ebx
movl %ebx, %ecx
notl %ecx
movl 12(%ebp), %esi
andl %esi, %ecx
andl %ebx, %esi
xorl %ebx, %ebx
orl 8(%ebp), %ecx
movl %esi, 12(%ebp)
jmp ..B1.8
..B1.7:
negl %ecx
movl $-1, %ebx
addl $30, %ecx
shll %cl, %ebx
movl %ebx, %ecx
notl %ecx
movl 8(%ebp), %esi
andl %esi, %ecx
andl %esi, %ebx
..B1.8:
movl %ebx, 8(%ebp)
testl %ecx, %ecx
je ..B1.14
..B1.9:
movzwl 14(%esp), %ecx
movl %ecx, %eax
andl $768, %eax
cmpl $768, %eax
je ..B1.23
..B1.10:
orl $-64768, %ecx
movw %cx, 12(%esp)
..B1.11:
fldcw 12(%esp)
..B1.12:
fldt 8(%ebp)
fstpt (%edx)
fldt (%edx)
fldt (%esp)
fsubp %st, %st(1)
fstpt (%esp)
..B1.13:
fldcw 14(%esp)
jmp ..B1.15
..B1.14:
fldt 8(%ebp)
fstpt (%edx)
movzbl 17(%ebp), %edx
andl $128, %edx
shrl $7, %edx
fldl _zeros@GOTOFF(%eax,%edx,8)
fstpt (%esp)
..B1.15:
fldt (%esp)
addl $24, %esp
popl %ebx
popl %esi
movl %ebp, %esp
popl %ebp
ret
..B1.16:
testl %ecx, %ecx
jne ..B1.20
..B1.17:
cmpl $0, 12(%ebp)
jne ..B1.19
..B1.18:
cmpl $0, 8(%ebp)
je ..B1.20
..B1.19:
fldl _smallest_value_64@GOTOFF(%eax)
fstpl 16(%esp)
..B1.20:
movzbl 17(%ebp), %ecx
andl $128, %ecx
shrl $7, %ecx
fldl _zeros@GOTOFF(%eax,%ecx,8)
fstpt (%edx)
fldt 8(%ebp)
addl $24, %esp
popl %ebx
popl %esi
movl %ebp, %esp
popl %ebp
ret
..B1.21:
cmpl $32767, %ecx
je ..B1.24
..B1.22:
fldt 8(%ebp)
fstpt (%edx)
movzbl 17(%ebp), %edx
andl $128, %edx
shrl $7, %edx
fldl _zeros@GOTOFF(%eax,%edx,8)
addl $24, %esp
popl %ebx
popl %esi
movl %ebp, %esp
popl %ebp
ret
..B1.23:
fldt 8(%ebp)
fstpt (%edx)
fldt (%edx)
fldt (%esp)
fsubp %st, %st(1)
fstpt (%esp)
jmp ..B1.15
..B1.24:
cmpl $-2147483648, 12(%ebp)
jne ..B1.26
..B1.25:
cmpl $0, 8(%ebp)
je ..B1.22
..B1.26:
movzwl 14(%esp), %ebx
movl %ebx, %ecx
andl $768, %ecx
cmpl $768, %ecx
je ..B1.32
..B1.27:
orl $-64768, %ebx
movw %bx, 12(%esp)
..B1.28:
fldcw 12(%esp)
..B1.29:
fldt 8(%ebp)
fmull _ones@GOTOFF(%eax)
fstpt (%esp)
fldt (%esp)
fstpt (%edx)
..B1.30:
fldcw 14(%esp)
..B1.31:
fldt (%esp)
addl $24, %esp
popl %ebx
popl %esi
movl %ebp, %esp
popl %ebp
ret
..B1.32:
fldt 8(%ebp)
fmull _ones@GOTOFF(%eax)
fstpt (%esp)
fldt (%esp)
fstpt (%edx)
jmp ..B1.31
.align 16,0x90
.type modfl,@function
.size modfl,.-modfl
.data
# -- End modfl
.section .rodata, "a"
.align 4
.align 4
_zeros:
.long 0
.long 0
.long 0
.long 2147483648
.type _zeros,@object
.size _zeros,16
.align 4
_smallest_value_64:
.long 1
.long 0
.long 1
.long 2147483648
.type _smallest_value_64,@object
.size _smallest_value_64,16
.align 4
_ones:
.long 0
.long 1072693248
.long 0
.long 3220176896
.type _ones,@object
.size _ones,16
.data
.section .note.GNU-stack, ""
# End