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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.
78 lines
2.0 KiB
NASM
78 lines
2.0 KiB
NASM
dnl PowerPC-64 mpn_gcd_11.
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dnl Copyright 2000-2002, 2005, 2009, 2011-2013 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/bit (approx)
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C POWER3/PPC630 ?
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C POWER4/PPC970 8.5 obsolete
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C POWER5 ?
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C POWER6 ?
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C POWER7 9.4 obsolete
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C POWER8 ?
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C POWER9 ?
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C Numbers measured with: speed -CD -s16-64 -t48 mpn_gcd_1
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define(`u0', `r3')
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define(`v0', `r4')
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define(`mask', `r0')dnl
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define(`a1', `r4')dnl
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define(`a2', `r5')dnl
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define(`d1', `r6')dnl
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define(`d2', `r7')dnl
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define(`cnt', `r9')dnl
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ASM_START()
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PROLOGUE(mpn_gcd_11)
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li r12, 63
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mr r8, v0
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subf. r10, u0, v0 C r10 = d - a
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beq L(end)
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ALIGN(16)
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L(top): subfc r11, r8, r3 C r11 = a - d
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and d2, r11, r10
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subfe mask, mask, mask
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cntlzd cnt, d2
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and a1, r10, mask C d - a
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andc a2, r11, mask C a - d
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and d1, r3, mask C a
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andc d2, r8, mask C d
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or r3, a1, a2 C new a
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subf cnt, cnt, r12
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or r8, d1, d2 C new d
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srd r3, r3, cnt
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subf. r10, r3, r8 C r10 = d - a
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bne L(top)
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L(end): blr
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EPILOGUE()
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