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.
140 lines
3.6 KiB
NASM
140 lines
3.6 KiB
NASM
dnl ARM mpn_and_n, mpn_andn_n. mpn_nand_n, etc.
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dnl Contributed to the GNU project by Torbjörn Granlund.
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dnl Copyright 1997, 2000, 2001, 2012 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 cycles/limb
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C and andn ior xor nand iorn nior xnor
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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 2.5-2.72 2.75-3
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C Cortex-A15 2.25 2.75
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C TODO
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C * It seems that 2.25 c/l and 2.75 c/l is possible for A9.
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C * Debug popping issue, see comment below.
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define(`rp', `r0')
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define(`up', `r1')
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define(`vp', `r2')
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define(`n', `r3')
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define(`POSTOP')
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ifdef(`OPERATION_and_n',`
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define(`func', `mpn_and_n')
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define(`LOGOP', `and $1, $2, $3')')
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ifdef(`OPERATION_andn_n',`
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define(`func', `mpn_andn_n')
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define(`LOGOP', `bic $1, $2, $3')')
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ifdef(`OPERATION_nand_n',`
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define(`func', `mpn_nand_n')
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define(`POSTOP', `mvn $1, $1')
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define(`LOGOP', `and $1, $2, $3')')
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ifdef(`OPERATION_ior_n',`
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define(`func', `mpn_ior_n')
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define(`LOGOP', `orr $1, $2, $3')')
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ifdef(`OPERATION_iorn_n',`
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define(`func', `mpn_iorn_n')
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define(`POSTOP', `mvn $1, $1')
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define(`LOGOP', `bic $1, $3, $2')')
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ifdef(`OPERATION_nior_n',`
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define(`func', `mpn_nior_n')
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define(`POSTOP', `mvn $1, $1')
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define(`LOGOP', `orr $1, $2, $3')')
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ifdef(`OPERATION_xor_n',`
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define(`func', `mpn_xor_n')
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define(`LOGOP', `eor $1, $2, $3')')
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ifdef(`OPERATION_xnor_n',`
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define(`func', `mpn_xnor_n')
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define(`POSTOP', `mvn $1, $1')
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define(`LOGOP', `eor $1, $2, $3')')
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MULFUNC_PROLOGUE(mpn_and_n mpn_andn_n mpn_nand_n mpn_ior_n mpn_iorn_n mpn_nior_n mpn_xor_n mpn_xnor_n)
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ASM_START()
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PROLOGUE(func)
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push { r8, r9, r10 }
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tst n, #1
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beq L(skip1)
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ldr r10, [vp], #4
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ldr r12, [up], #4
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LOGOP( r12, r12, r10)
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POSTOP( r12)
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str r12, [rp], #4
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L(skip1):
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tst n, #2
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beq L(skip2)
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ldmia vp!, { r10, r12 }
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ldmia up!, { r8, r9 }
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LOGOP( r8, r8, r10)
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LOGOP( r9, r9, r12)
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POSTOP( r8)
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POSTOP( r9)
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stmia rp!, { r8, r9 }
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L(skip2):
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bics n, n, #3
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beq L(rtn)
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push { r4, r5, r6, r7 }
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ldmia vp!, { r8, r9, r10, r12 }
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b L(mid)
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L(top): ldmia vp!, { r8, r9, r10, r12 }
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POSTOP( r4)
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POSTOP( r5)
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POSTOP( r6)
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POSTOP( r7)
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stmia rp!, { r4, r5, r6, r7 }
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L(mid): sub n, n, #4
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ldmia up!, { r4, r5, r6, r7 }
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teq n, #0
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LOGOP( r4, r4, r8)
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LOGOP( r5, r5, r9)
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LOGOP( r6, r6, r10)
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LOGOP( r7, r7, r12)
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bne L(top)
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POSTOP( r4)
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POSTOP( r5)
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POSTOP( r6)
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POSTOP( r7)
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stmia rp!, { r4, r5, r6, r7 }
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pop { r4, r5, r6, r7 } C popping r8-r10 here strangely fails
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L(rtn): pop { r8, r9, r10 }
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return r14
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EPILOGUE()
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