diff options
| author | Duncan Wilkie <antigravityd@gmail.com> | 2023-11-18 06:11:09 -0600 |
|---|---|---|
| committer | Duncan Wilkie <antigravityd@gmail.com> | 2023-11-18 06:11:09 -0600 |
| commit | 11da511c784eca003deb90c23570f0873954e0de (patch) | |
| tree | e14fdd3d5d6345956d67e79ae771d0633d28362b /gmp-6.3.0/mpn/x86_64/bdiv_dbm1c.asm | |
Initial commit.
Diffstat (limited to 'gmp-6.3.0/mpn/x86_64/bdiv_dbm1c.asm')
| -rw-r--r-- | gmp-6.3.0/mpn/x86_64/bdiv_dbm1c.asm | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/gmp-6.3.0/mpn/x86_64/bdiv_dbm1c.asm b/gmp-6.3.0/mpn/x86_64/bdiv_dbm1c.asm new file mode 100644 index 0000000..a53bd52 --- /dev/null +++ b/gmp-6.3.0/mpn/x86_64/bdiv_dbm1c.asm @@ -0,0 +1,106 @@ +dnl x86_64 mpn_bdiv_dbm1. + +dnl Copyright 2008, 2011, 2012 Free Software Foundation, Inc. + +dnl This file is part of the GNU MP Library. +dnl +dnl The GNU MP Library is free software; you can redistribute it and/or modify +dnl it under the terms of either: +dnl +dnl * the GNU Lesser General Public License as published by the Free +dnl Software Foundation; either version 3 of the License, or (at your +dnl option) any later version. +dnl +dnl or +dnl +dnl * the GNU General Public License as published by the Free Software +dnl Foundation; either version 2 of the License, or (at your option) any +dnl later version. +dnl +dnl or both in parallel, as here. +dnl +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 General Public License +dnl for more details. +dnl +dnl You should have received copies of the GNU General Public License and the +dnl GNU Lesser General Public License along with the GNU MP Library. If not, +dnl see https://www.gnu.org/licenses/. + +include(`../config.m4') + +C cycles/limb +C AMD K8,K9 2.25 +C AMD K10 2.25 +C Intel P4 12.5 +C Intel core2 4 +C Intel NHM 3.75 +C Intel SBR 3.6 +C Intel atom 20 +C VIA nano 4 + +C TODO +C * Optimise feed-in code. + +C INPUT PARAMETERS +define(`qp', `%rdi') +define(`up', `%rsi') +define(`n_param', `%rdx') +define(`bd', `%rcx') +define(`cy', `%r8') + +define(`n', `%r9') + +ABI_SUPPORT(DOS64) +ABI_SUPPORT(STD64) + +ASM_START() + TEXT + ALIGN(16) +PROLOGUE(mpn_bdiv_dbm1c) + FUNC_ENTRY(4) +IFDOS(` mov 56(%rsp), %r8 ') + mov (up), %rax + mov n_param, n + mov R32(n_param), R32(%r11) + mul bd + lea (up,n,8), up + lea (qp,n,8), qp + neg n + and $3, R32(%r11) + jz L(lo0) + lea -4(n,%r11), n + cmp $2, R32(%r11) + jc L(lo1) + jz L(lo2) + jmp L(lo3) + + ALIGN(16) +L(top): mov (up,n,8), %rax + mul bd +L(lo0): sub %rax, %r8 + mov %r8, (qp,n,8) + sbb %rdx, %r8 + mov 8(up,n,8), %rax + mul bd +L(lo3): sub %rax, %r8 + mov %r8, 8(qp,n,8) + sbb %rdx, %r8 + mov 16(up,n,8), %rax + mul bd +L(lo2): sub %rax, %r8 + mov %r8, 16(qp,n,8) + sbb %rdx, %r8 + mov 24(up,n,8), %rax + mul bd +L(lo1): sub %rax, %r8 + mov %r8, 24(qp,n,8) + sbb %rdx, %r8 + add $4, n + jnz L(top) + + mov %r8, %rax + FUNC_EXIT() + ret +EPILOGUE() |