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.
65 lines
1.9 KiB
NASM
65 lines
1.9 KiB
NASM
dnl HP-PA mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
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dnl store difference in a third limb vector.
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dnl Copyright 1992, 1994, 2000-2002 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 INPUT PARAMETERS
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C res_ptr gr26
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C s1_ptr gr25
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C s2_ptr gr24
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C size gr23
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C One might want to unroll this as for other processors, but it turns out that
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C the data cache contention after a store makes such unrolling useless. We
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C can't come under 5 cycles/limb anyway.
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ASM_START()
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PROLOGUE(mpn_sub_n)
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ldws,ma 4(0,%r25),%r20
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ldws,ma 4(0,%r24),%r19
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addib,= -1,%r23,L(end) C check for (SIZE == 1)
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sub %r20,%r19,%r28 C subtract first limbs ignoring cy
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LDEF(loop)
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ldws,ma 4(0,%r25),%r20
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ldws,ma 4(0,%r24),%r19
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stws,ma %r28,4(0,%r26)
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addib,<> -1,%r23,L(loop)
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subb %r20,%r19,%r28
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LDEF(end)
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stws %r28,0(0,%r26)
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addc %r0,%r0,%r28
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bv 0(%r2)
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subi 1,%r28,%r28
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EPILOGUE()
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