vasilito
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.
66 lines
1.9 KiB
Plaintext
66 lines
1.9 KiB
Plaintext
Copyright 2002, 2005 Free Software Foundation, Inc.
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This file is part of the GNU MP Library.
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The GNU MP Library is free software; you can redistribute it and/or modify
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it under the terms of either:
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* the GNU Lesser General Public License as published by the Free
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Software Foundation; either version 3 of the License, or (at your
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option) any later version.
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or
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* the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any
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later version.
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or both in parallel, as here.
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The GNU MP Library is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
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or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received copies of the GNU General Public License and the
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GNU Lesser General Public License along with the GNU MP Library. If not,
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see https://www.gnu.org/licenses/.
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This directory contains assembly code for nails-enabled 21264. The code is not
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very well optimized.
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For addmul_N, as N grows larger, we could make multiple loads together, then do
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about 3.3 i/c. 10 cycles after the last load, we can increase to 4 i/c. This
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would surely allow addmul_4 to run at 2 c/l, but the same should be possible
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also for addmul_3 and perhaps even addmul_2.
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current fair best
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Routine c/l unroll c/l unroll c/l i/c
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mul_1 3.25 2.75 2.75 3.273
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addmul_1 4.0 4 3.5 4 14 3.25 3.385
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addmul_2 4.0 1 2.5 2 10 2.25 3.333
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addmul_3 3.0 1 2.33 2 14 2 3.333
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addmul_4 2.5 1 2.125 2 17 2 3.135
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addmul_5 2 1 10
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addmul_6 2 1 12
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addmul_7 2 1 14
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(The "best" column doesn't account for bookkeeping instructions and
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thereby assumes infinite unrolling.)
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Basecase usages:
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1 addmul_1
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2 addmul_2
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3 addmul_3
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4 addmul_4
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5 addmul_3 + addmul_2 2.3998
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6 addmul_4 + addmul_2
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7 addmul_4 + addmul_3
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