corda/external/sgx_libm/ia32/scalblnf.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

203 lines
5.5 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 "scalblnf.c"
.text
..TXTST0:
# -- Begin scalblnf
.text
.align 16,0x90
.globl scalblnf
scalblnf:
# parameter 1: 16 + %esp
# parameter 2: 20 + %esp
..B1.1:
..L1:
pushl %ebx
pushl %ebp
pushl %esi
movzwl 18(%esp), %eax
movl %eax, %ecx
andl $32640, %ecx
shrl $7, %ecx
movl 20(%esp), %edx
cmpl $255, %ecx
je ..B1.15
..B1.2:
call ..L2
..L2:
popl %ebx
lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%ebx), %ebx
testl %ecx, %ecx
jne ..B1.5
..B1.3:
testl $8388607, 16(%esp)
je ..B1.9
..B1.4:
flds 16(%esp)
fmuls .L_2il0floatpacket.0@GOTOFF(%ebx)
fstps 16(%esp)
movzwl 18(%esp), %eax
movl %eax, %ecx
andl $32640, %ecx
shrl $7, %ecx
addl $-25, %ecx
..B1.5:
cmpl $65536, %edx
jle ..L3
movl $65536, %edx
..L3:
cmpl $-65536, %edx
jg ..L4
movl $-65536, %edx
..L4:
lea (%ecx,%edx), %ebp
testl %ebp, %ebp
jle ..B1.11
..B1.6:
cmpl $255, %ebp
jge ..B1.10
..B1.7:
andl $255, %ebp
andl $-32641, %eax
shll $7, %ebp
orl %ebp, %eax
movw %ax, 18(%esp)
flds 16(%esp)
..B1.8:
popl %ecx
popl %ebp
popl %ebx
ret
..B1.9:
flds 16(%esp)
popl %ecx
popl %ebp
popl %ebx
ret
..B1.10:
movzbl 19(%esp), %eax
andl $128, %eax
shrl $7, %eax
flds _large_value_32@GOTOFF(%ebx,%eax,4)
fmuls .L_2il0floatpacket.1@GOTOFF(%ebx)
fsts (%esp)
popl %ecx
popl %ebp
popl %ebx
ret
..B1.11:
cmpl $-23, %ebp
jl ..B1.14
..B1.12:
movl 16(%esp), %eax
lea 25(%ecx,%edx), %edx
movl %eax, (%esp)
shrl $16, %eax
movzbl %dl, %edx
andl $-32641, %eax
shll $7, %edx
orl %edx, %eax
movw %ax, 2(%esp)
flds (%esp)
fmuls .L_2il0floatpacket.3@GOTOFF(%ebx)
fsts (%esp)
..B1.13:
popl %ecx
popl %ebp
popl %ebx
ret
..B1.14:
movzbl 19(%esp), %eax
andl $128, %eax
shrl $7, %eax
flds _small_value_32@GOTOFF(%ebx,%eax,4)
fmuls .L_2il0floatpacket.2@GOTOFF(%ebx)
fsts (%esp)
popl %ecx
popl %ebp
popl %ebx
ret
..B1.15:
flds 16(%esp)
popl %ecx
popl %ebp
popl %ebx
ret
.align 16,0x90
.type scalblnf,@function
.size scalblnf,.-scalblnf
.data
# -- End scalblnf
.section .rodata, "a"
.align 4
.align 4
.L_2il0floatpacket.0:
.long 0x4c000000
.type .L_2il0floatpacket.0,@object
.size .L_2il0floatpacket.0,4
.align 4
.L_2il0floatpacket.1:
.long 0x71800000
.type .L_2il0floatpacket.1,@object
.size .L_2il0floatpacket.1,4
.align 4
.L_2il0floatpacket.2:
.long 0x0d800000
.type .L_2il0floatpacket.2,@object
.size .L_2il0floatpacket.2,4
.align 4
.L_2il0floatpacket.3:
.long 0x33000000
.type .L_2il0floatpacket.3,@object
.size .L_2il0floatpacket.3,4
.align 4
_large_value_32:
.long 1904214016
.long 4051697664
.type _large_value_32,@object
.size _large_value_32,8
.align 4
_small_value_32:
.long 226492416
.long 2373976064
.type _small_value_32,@object
.size _small_value_32,8
.data
.section .note.GNU-stack, ""
# End