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ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
107 lines
2.4 KiB
NASM
107 lines
2.4 KiB
NASM
dnl x86 mpn_sec_tabselect.
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dnl Copyright 2011, 2021 Free Software Foundation, Inc.
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dnl This file is part of the GNU MP Library.
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dnl
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dnl The GNU MP Library is free software; you can redistribute it and/or modify
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dnl it under the terms of either:
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dnl
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dnl * the GNU Lesser General Public License as published by the Free
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dnl Software Foundation; either version 3 of the License, or (at your
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dnl option) any later version.
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dnl
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dnl or
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dnl
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dnl * the GNU General Public License as published by the Free Software
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dnl Foundation; either version 2 of the License, or (at your option) any
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dnl later version.
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dnl
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dnl or both in parallel, as here.
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dnl
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dnl The GNU MP Library is distributed in the hope that it will be useful, but
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dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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dnl for more details.
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dnl
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dnl You should have received copies of the GNU General Public License and the
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dnl GNU Lesser General Public License along with the GNU MP Library. If not,
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dnl see https://www.gnu.org/licenses/.
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include(`../config.m4')
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C cycles/limb
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C P5 ?
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C P6 model 0-8,10-12 ?
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C P6 model 9 (Banias) ?
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C P6 model 13 (Dothan) ?
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C P4 model 0 (Willamette) ?
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C P4 model 1 (?) ?
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C P4 model 2 (Northwood) 4.5
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C P4 model 3 (Prescott) ?
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C P4 model 4 (Nocona) ?
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C Intel Atom ?
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C AMD K6 ?
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C AMD K7 3.4
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C AMD K8 ?
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C AMD K10 ?
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C NOTES
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C * This has not been tuned for any specific processor. Its speed should not
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C be too bad, though.
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C * Using SSE2 could result in many-fold speedup.
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C mpn_sec_tabselect (mp_limb_t *rp, mp_limb_t *tp, mp_size_t n, mp_size_t nents, mp_size_t which)
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define(`rp', `%edi')
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define(`tp', `%esi')
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define(`n', `%ebx')
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define(`nents', `32(%esp)')
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define(`which', `36(%esp)')
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define(`i', `%ebp')
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define(`mask', `%ecx')
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ASM_START()
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TEXT
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ALIGN(16)
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PROLOGUE(mpn_sec_tabselect)
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push %edi
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push %esi
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push %ebx
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push %ebp
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mov 20(%esp), rp
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mov 24(%esp), tp
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mov 28(%esp), n
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lea (rp,n,4), rp
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lea (tp,n,4), tp
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L(outer):
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subl $1, which
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sbb mask, mask
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mov n, i
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neg i
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ALIGN(16)
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L(top): mov (tp,i,4), %eax
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mov (rp,i,4), %edx
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xor %edx, %eax
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and mask, %eax
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xor %edx, %eax
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mov %eax, (rp,i,4)
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inc i
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js L(top)
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L(end): lea (tp,n,4), tp
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decl nents
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jne L(outer)
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L(outer_end):
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pop %ebp
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pop %ebx
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pop %esi
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pop %edi
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ret
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EPILOGUE()
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