corda/external/sgx_libm/ia32/modff.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

133 lines
3.7 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 "modff.c"
.text
..TXTST0:
# -- Begin modff
.text
.align 16,0x90
.globl modff
modff:
# parameter 1: 12 + %esp
# parameter 2: 16 + %esp
..B1.1:
..L1:
pushl %ebx
pushl %ebp
movl 12(%esp), %eax
movl %eax, %ecx
andl $2147483647, %ecx
movl 16(%esp), %edx
call ..L2
..L2:
popl %ebx
lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%ebx), %ebx
lea -1065353216(%ecx), %ebp
cmpl $192937984, %ebp
jae ..B1.6
..B1.2:
shrl $23, %ecx
movl $-1, %ebp
negl %ecx
addl $22, %ecx
shll %cl, %ebp
movl %ebp, %ecx
andl %eax, %ebp
notl %ecx
movl %ebp, (%edx)
testl %ecx, %eax
je ..B1.4
..B1.3:
flds 12(%esp)
fsubs (%edx)
popl %ebp
popl %ebx
ret
..B1.4:
shrl $31, %eax
flds _zeros@GOTOFF(%ebx,%eax,4)
..B1.5:
popl %ebp
popl %ebx
ret
..B1.6:
movl %eax, %ebp
shrl $31, %ebp
cmpl $2139095040, %ecx
ja ..B1.11
..B1.7:
cmpl $1065353216, %ecx
jbe ..B1.9
..B1.8:
flds _zeros@GOTOFF(%ebx,%ebp,4)
movl %eax, (%edx)
popl %ebp
popl %ebx
ret
..B1.9:
flds 12(%esp)
movl _zeros@GOTOFF(%ebx,%ebp,4), %eax
movl %eax, (%edx)
..B1.10:
popl %ebp
popl %ebx
ret
..B1.11:
flds 12(%esp)
fadd %st(0), %st
fsts (%edx)
popl %ebp
popl %ebx
ret
.align 16,0x90
.type modff,@function
.size modff,.-modff
.data
# -- End modff
.section .rodata, "a"
.align 4
.align 4
_zeros:
.long 0
.long 2147483648
.type _zeros,@object
.size _zeros,8
.data
.section .note.GNU-stack, ""
# End