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facf0c92e0
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.
132 lines
2.7 KiB
NASM
132 lines
2.7 KiB
NASM
dnl ARM mpn_sec_tabselect
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dnl Contributed to the GNU project by Torbjörn Granlund.
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dnl Copyright 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/limb
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C StrongARM ?
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C XScale ?
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C Cortex-A7 ?
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C Cortex-A8 ?
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C Cortex-A9 2.33
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C Cortex-A15 2.2
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C TODO
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C * Consider using special code for small nents, either swapping the inner and
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C outer loops, or providing a few completely unrolling the inner loops.
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define(`rp', `r0')
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define(`tp', `r1')
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define(`n', `r2')
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define(`nents', `r3')
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C which on stack
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define(`i', `r11')
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define(`j', `r12')
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define(`c', `r14')
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define(`mask', `r7')
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ASM_START()
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PROLOGUE(mpn_sec_tabselect)
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push {r4-r11, r14}
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subs j, n, #3
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bmi L(outer_end)
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L(outer_top):
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ldr c, [sp, #36]
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mov i, nents
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push {tp}
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mov r8, #0
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mov r9, #0
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mov r10, #0
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L(top): subs c, c, #1
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ldm tp, {r4,r5,r6}
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sbc mask, mask, mask
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subs i, i, #1
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add tp, tp, n, lsl #2
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and r4, r4, mask
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and r5, r5, mask
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and r6, r6, mask
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orr r8, r8, r4
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orr r9, r9, r5
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orr r10, r10, r6
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bge L(top)
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stmia rp!, {r8,r9,r10}
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pop {tp}
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add tp, tp, #12
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subs j, j, #3
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bpl L(outer_top)
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L(outer_end):
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cmp j, #-1
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bne L(n2)
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ldr c, [sp, #36]
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mov i, nents
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mov r8, #0
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mov r9, #0
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L(tp2): subs c, c, #1
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sbc mask, mask, mask
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ldm tp, {r4,r5}
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subs i, i, #1
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add tp, tp, n, lsl #2
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and r4, r4, mask
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and r5, r5, mask
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orr r8, r8, r4
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orr r9, r9, r5
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bge L(tp2)
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stmia rp, {r8,r9}
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pop {r4-r11, r14}
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return lr
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L(n2): cmp j, #-2
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bne L(n1)
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ldr c, [sp, #36]
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mov i, nents
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mov r8, #0
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L(tp1): subs c, c, #1
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sbc mask, mask, mask
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ldr r4, [tp]
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subs i, i, #1
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add tp, tp, n, lsl #2
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and r4, r4, mask
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orr r8, r8, r4
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bge L(tp1)
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str r8, [rp]
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L(n1): pop {r4-r11, r14}
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return lr
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EPILOGUE()
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