corda/external/sgx_libm/intel64/logbl.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

166 lines
4.3 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 "logbl.c"
.text
..TXTST0:
# -- Begin logbl
.text
.align 16,0x90
.globl logbl
logbl:
# parameter 1: 48 + %rsp
..B1.1:
.cfi_startproc
..___tag_value_logbl.1:
..L2:
subq $40, %rsp
.cfi_def_cfa_offset 48
xorb %al, %al
..B1.2:
fnstcw 26(%rsp)
..B1.3:
movzwl 26(%rsp), %ecx
movl %ecx, %edx
andl $768, %edx
cmpl $768, %edx
je ..B1.7
..B1.4:
orl $-64768, %ecx
movw %cx, 24(%rsp)
..B1.5:
fldcw 24(%rsp)
..B1.6:
movb $1, %al
..B1.7:
movzwl 56(%rsp), %edx
andl $32767, %edx
cmpl $32767, %edx
je ..B1.16
..B1.8:
testl %edx, %edx
jne ..B1.11
..B1.9:
cmpq $0, 48(%rsp)
je ..B1.15
..B1.10:
fldt 48(%rsp)
lea _TWO_75(%rip), %rdx
fmull (%rdx)
fstpt 48(%rsp)
movzwl 56(%rsp), %ecx
andl $32767, %ecx
addl $-16458, %ecx
movl %ecx, (%rsp)
fildl (%rsp)
fstpt 8(%rsp)
jmp ..B1.12
..B1.11:
addl $-16383, %edx
movl %edx, (%rsp)
fildl (%rsp)
fstpt 8(%rsp)
..B1.12:
testb %al, %al
je ..B1.14
..B1.13:
fldcw 26(%rsp)
..B1.14:
fldt 8(%rsp)
addq $40, %rsp
.cfi_def_cfa_offset 8
ret
.cfi_def_cfa_offset 48
..B1.15:
lea 8+_ones(%rip), %rdx
lea _zeros(%rip), %rcx
movsd (%rdx), %xmm0
divsd (%rcx), %xmm0
movsd %xmm0, (%rsp)
fldl (%rsp)
fstpt 8(%rsp)
jmp ..B1.12
..B1.16:
fldt 48(%rsp)
lea _ones(%rip), %rcx
movb 57(%rsp), %dl
andb $-128, %dl
shrb $7, %dl
movzbl %dl, %esi
fmull (%rcx,%rsi,8)
fstpt 8(%rsp)
jmp ..B1.12
.align 16,0x90
.cfi_endproc
.type logbl,@function
.size logbl,.-logbl
.data
# -- End logbl
.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
.align 4
_ones:
.long 0
.long 1072693248
.long 0
.long 3220176896
.type _ones,@object
.size _ones,16
.align 4
_zeros:
.long 0
.long 0
.long 0
.long 2147483648
.type _zeros,@object
.size _zeros,16
.data
.section .note.GNU-stack, ""
// -- Begin DWARF2 SEGMENT .eh_frame
.section .eh_frame,"a",@progbits
.eh_frame_seg:
.align 1
# End