/* * 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 "truncl.c" .text ..TXTST0: # -- Begin truncl .text .align 16,0x90 .globl truncl truncl: # parameter 1: 8 + %ebp ..B1.1: ..L1: pushl %ebp movl %esp, %ebp andl $-16, %esp subl $32, %esp ..B1.2: fnstcw 22(%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 ..B1.14 ..B1.4: cmpl $16383, %ecx jl ..B1.9 ..B1.5: cmpl $16415, %ecx jge ..B1.7 ..B1.6: negl %ecx addl $30, %ecx movl 12(%ebp), %eax shrl %cl, %eax shll %cl, %eax movl %eax, 12(%ebp) xorl %eax, %eax jmp ..B1.8 ..B1.7: negl %ecx addl $30, %ecx movl 8(%ebp), %eax shrl %cl, %eax shll %cl, %eax ..B1.8: movl %eax, 8(%ebp) fldt 8(%ebp) movl %ebp, %esp popl %ebp ret ..B1.9: testl %ecx, %ecx jne ..B1.13 ..B1.10: cmpl $0, 12(%ebp) jne ..B1.12 ..B1.11: cmpl $0, 8(%ebp) je ..B1.13 ..B1.12: fldl _smallest_value_64@GOTOFF(%eax) fstpl (%esp) ..B1.13: movzbl 17(%ebp), %edx andl $128, %edx shrl $7, %edx fldl _zeros@GOTOFF(%eax,%edx,8) movl %ebp, %esp popl %ebp ret ..B1.14: movzwl 22(%esp), %ecx movl %ecx, %edx andl $768, %edx cmpl $768, %edx je ..B1.20 ..B1.15: orl $-64768, %ecx movw %cx, 20(%esp) ..B1.16: fldcw 20(%esp) ..B1.17: fldt 8(%ebp) fmull _ones@GOTOFF(%eax) fstpt 8(%esp) ..B1.18: fldcw 22(%esp) ..B1.19: fldt 8(%esp) movl %ebp, %esp popl %ebp ret ..B1.20: fldt 8(%ebp) fmull _ones@GOTOFF(%eax) fstpt 8(%esp) jmp ..B1.19 .align 16,0x90 .type truncl,@function .size truncl,.-truncl .data # -- End truncl .section .rodata, "a" .align 4 .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 _zeros: .long 0 .long 0 .long 0 .long 2147483648 .type _zeros,@object .size _zeros,16 .align 4 _ones: .long 0 .long 1072693248 .long 0 .long 3220176896 .type _ones,@object .size _ones,16 .data .section .note.GNU-stack, "" # End