aorsmul_1.asm
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上传日期:2022-08-06
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- dnl x86-64 mpn_addmul_1 and mpn_submul_1, optimized for "Core 2".
- dnl Copyright 2003, 2004, 2005, 2007, 2008, 2009 Free Software Foundation, Inc.
- dnl This file is part of the GNU MP Library.
- dnl The GNU MP Library is free software; you can redistribute it and/or modify
- dnl it under the terms of the GNU Lesser General Public License as published
- dnl by the Free Software Foundation; either version 3 of the License, or (at
- dnl your option) any later version.
- dnl The GNU MP Library is distributed in the hope that it will be useful, but
- dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
- dnl License for more details.
- dnl You should have received a copy of the GNU Lesser General Public License
- dnl along with the GNU MP Library. If not, see http://www.gnu.org/licenses/.
- include(`../config.m4')
- C cycles/limb
- C K8,K9: 4
- C K10: 4
- C P4: ?
- C P6 core2: 4.3-4.5 (fluctuating)
- C P6 corei7: 5
- C INPUT PARAMETERS
- define(`rp', `%rdi')
- define(`up', `%rsi')
- define(`n', `%rdx')
- define(`v0', `%rcx')
- ifdef(`OPERATION_addmul_1',`
- define(`ADDSUB', `add')
- define(`func', `mpn_addmul_1')
- ')
- ifdef(`OPERATION_submul_1',`
- define(`ADDSUB', `sub')
- define(`func', `mpn_submul_1')
- ')
- MULFUNC_PROLOGUE(mpn_addmul_1 mpn_submul_1)
- ASM_START()
- TEXT
- ALIGN(16)
- PROLOGUE(func)
- push %rbx
- push %rbp
- lea (%rdx), %rbx
- neg %rbx
- mov (up), %rax
- mov (rp), %r10
- lea -16(rp,%rdx,8), rp
- lea (up,%rdx,8), up
- mul %rcx
- bt $0, R32(%rbx)
- jc L(odd)
- lea (%rax), %r11
- mov 8(up,%rbx,8), %rax
- lea (%rdx), %rbp
- mul %rcx
- add $2, %rbx
- jns L(n2)
- lea (%rax), %r8
- mov (up,%rbx,8), %rax
- lea (%rdx), %r9
- jmp L(mid)
- L(odd): add $1, %rbx
- jns L(n1)
- lea (%rax), %r8
- mov (up,%rbx,8), %rax
- lea (%rdx), %r9
- mul %rcx
- lea (%rax), %r11
- mov 8(up,%rbx,8), %rax
- lea (%rdx), %rbp
- jmp L(e)
- ALIGN(16)
- L(top): mul %rcx
- ADDSUB %r8, %r10
- lea (%rax), %r8
- mov (up,%rbx,8), %rax
- adc %r9, %r11
- mov %r10, -8(rp,%rbx,8)
- mov (rp,%rbx,8), %r10
- lea (%rdx), %r9
- adc $0, %rbp
- L(mid): mul %rcx
- ADDSUB %r11, %r10
- lea (%rax), %r11
- mov 8(up,%rbx,8), %rax
- adc %rbp, %r8
- mov %r10, (rp,%rbx,8)
- mov 8(rp,%rbx,8), %r10
- lea (%rdx), %rbp
- adc $0, %r9
- L(e): add $2, %rbx
- js L(top)
- mul %rcx
- ADDSUB %r8, %r10
- adc %r9, %r11
- mov %r10, -8(rp)
- adc $0, %rbp
- L(n2): mov (rp), %r10
- ADDSUB %r11, %r10
- adc %rbp, %rax
- mov %r10, (rp)
- adc $0, %rdx
- L(n1): mov 8(rp), %r10
- ADDSUB %rax, %r10
- mov %r10, 8(rp)
- mov R32(%rbx), R32(%rax) C zero rax
- adc %rdx, %rax
- pop %rbp
- pop %rbx
- ret
- EPILOGUE()