/* * 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 * History: * 03-14-2016 Initial version. numerics svn rev. 12864 */ .file "logbf.c" .text ..TXTST0: # -- Begin logbf .text .align 16,0x90 .globl logbf logbf: # parameter 1: 16 + %esp ..B1.1: ..L1: subl $12, %esp movl 16(%esp), %eax movl %eax, %edx andl $2147483647, %edx addl $-8388608, %edx cmpl $2130706432, %edx jb ..B1.7 ..B1.2: call ..L2 ..L2: popl %ecx lea _GLOBAL_OFFSET_TABLE_+[. - ..L2](%ecx), %ecx testl %edx, %edx jge ..B1.6 ..B1.3: cmpl $-8388608, %edx je ..B1.8 ..B1.4: flds 16(%esp) fmuls .L_2il0floatpacket.1@GOTOFF(%ecx) fstps 16(%esp) movl 16(%esp), %eax andl $2147483647, %eax shrl $23, %eax addl $-152, %eax movl %eax, (%esp) fildl (%esp) ..B1.5: addl $12, %esp ret ..B1.6: flds 16(%esp) shrl $31, %eax fmuls _ones@GOTOFF(%ecx,%eax,4) addl $12, %esp ret ..B1.7: shrl $23, %edx addl $-126, %edx movl %edx, (%esp) fildl (%esp) addl $12, %esp ret ..B1.8: fldz fdivrs .L_2il0floatpacket.0@GOTOFF(%ecx) addl $12, %esp ret .align 16,0x90 .type logbf,@function .size logbf,.-logbf .data # -- End logbf .section .rodata, "a" .align 4 .align 4 .L_2il0floatpacket.0: .long 0xbf800000 .type .L_2il0floatpacket.0,@object .size .L_2il0floatpacket.0,4 .align 4 .L_2il0floatpacket.1: .long 0x4c000000 .type .L_2il0floatpacket.1,@object .size .L_2il0floatpacket.1,4 .align 4 _ones: .long 1065353216 .long 3212836864 .type _ones,@object .size _ones,8 .data .section .note.GNU-stack, "" # End