/* * 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: 48 + %rsp ..B1.1: .cfi_startproc ..___tag_value_truncl.1: ..L2: subq $40, %rsp .cfi_def_cfa_offset 48 ..B1.2: fnstcw 26(%rsp) ..B1.3: movzwl 56(%rsp), %ecx andl $32767, %ecx 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 52(%rsp), %eax shrl %cl, %eax shll %cl, %eax movl %eax, 52(%rsp) xorl %eax, %eax jmp ..B1.8 ..B1.7: negl %ecx addl $30, %ecx movl 48(%rsp), %eax shrl %cl, %eax shll %cl, %eax ..B1.8: movl %eax, 48(%rsp) fldt 48(%rsp) addq $40, %rsp .cfi_def_cfa_offset 8 ret .cfi_def_cfa_offset 48 ..B1.9: testl %ecx, %ecx jne ..B1.13 ..B1.10: cmpl $0, 52(%rsp) jne ..B1.12 ..B1.11: cmpl $0, 48(%rsp) je ..B1.13 ..B1.12: lea _smallest_value_64(%rip), %rax movq (%rax), %rdx movq %rdx, (%rsp) ..B1.13: movb 57(%rsp), %al lea _zeros(%rip), %rdx andb $-128, %al shrb $7, %al movzbl %al, %ecx fldl (%rdx,%rcx,8) addq $40, %rsp .cfi_def_cfa_offset 8 ret .cfi_def_cfa_offset 48 ..B1.14: movzwl 26(%rsp), %edx movl %edx, %eax andl $768, %eax cmpl $768, %eax je ..B1.20 ..B1.15: orl $-64768, %edx movw %dx, 24(%rsp) ..B1.16: fldcw 24(%rsp) ..B1.17: fldt 48(%rsp) lea _ones(%rip), %rax fmull (%rax) fstpt 8(%rsp) ..B1.18: fldcw 26(%rsp) ..B1.19: fldt 8(%rsp) addq $40, %rsp .cfi_def_cfa_offset 8 ret .cfi_def_cfa_offset 48 ..B1.20: fldt 48(%rsp) lea _ones(%rip), %rax fmull (%rax) fstpt 8(%rsp) jmp ..B1.19 .align 16,0x90 .cfi_endproc .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, "" // -- Begin DWARF2 SEGMENT .eh_frame .section .eh_frame,"a",@progbits .eh_frame_seg: .align 1 # End