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| author | Duncan Wilkie <antigravityd@gmail.com> | 2023-11-18 06:11:09 -0600 |
|---|---|---|
| committer | Duncan Wilkie <antigravityd@gmail.com> | 2023-11-18 06:11:09 -0600 |
| commit | 11da511c784eca003deb90c23570f0873954e0de (patch) | |
| tree | e14fdd3d5d6345956d67e79ae771d0633d28362b /gmp-6.3.0/mpn/loongarch/64/cnd_aors_n.asm | |
Initial commit.
Diffstat (limited to 'gmp-6.3.0/mpn/loongarch/64/cnd_aors_n.asm')
| -rw-r--r-- | gmp-6.3.0/mpn/loongarch/64/cnd_aors_n.asm | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/gmp-6.3.0/mpn/loongarch/64/cnd_aors_n.asm b/gmp-6.3.0/mpn/loongarch/64/cnd_aors_n.asm new file mode 100644 index 0000000..deff3d3 --- /dev/null +++ b/gmp-6.3.0/mpn/loongarch/64/cnd_aors_n.asm @@ -0,0 +1,99 @@ +dnl Loongarch mpn_cnd_add_n and mpn_cnd_sub_n. + +dnl Contributed to the GNU project by Torbjorn Granlund. + +dnl Copyright 2016, 2023 Free Software Foundation, Inc. + +dnl This file is part of the GNU MP Library. +dnl +dnl The GNU MP Library is free software; you can redistribute it and/or modify +dnl it under the terms of either: +dnl +dnl * the GNU Lesser General Public License as published by the Free +dnl Software Foundation; either version 3 of the License, or (at your +dnl option) any later version. +dnl +dnl or +dnl +dnl * the GNU General Public License as published by the Free Software +dnl Foundation; either version 2 of the License, or (at your option) any +dnl later version. +dnl +dnl or both in parallel, as here. +dnl +dnl The GNU MP Library is distributed in the hope that it will be useful, but +dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +dnl for more details. +dnl +dnl You should have received copies of the GNU General Public License and the +dnl GNU Lesser General Public License along with the GNU MP Library. If not, +dnl see https://www.gnu.org/licenses/. + +include(`../config.m4') + +C INPUT PARAMETERS +define(`cnd', `$a0') +define(`rp', `$a1') +define(`up', `$a2') +define(`vp', `$a3') +define(`n', `$a4') + +define(`mask', `$t5') + +ifdef(`OPERATION_cnd_add_n',` + define(`ADDSUB', `add.d') + define(`CMPCY', `sltu $1, $2, $3') + define(`func', `mpn_cnd_add_n') +') +ifdef(`OPERATION_cnd_sub_n',` + define(`ADDSUB', `sub.d') + define(`CMPCY', `sltu $1, $3, $4') + define(`func', `mpn_cnd_sub_n') +') + +MULFUNC_PROLOGUE(mpn_cnd_add_n mpn_cnd_sub_n) + +ASM_START() +PROLOGUE(func) + move $t6, $zero + + sltui mask, cnd, 1 + addi.d mask, mask, -1 + + andi $t0, n, 1 + beqz $t0, L(top) + addi.d up, up, 8 + addi.d vp, vp, -8 + addi.d rp, rp, -8 + addi.d n, n, -1 + b L(mid) + +L(top): ld.d $a7, vp, 0 + ld.d $a5, up, 0 + addi.d n, n, -2 C bookkeeping + addi.d up, up, 16 C bookkeeping + and $a7, $a7, mask + ADDSUB $t0, $a5, $a7 + CMPCY( $t2, $t0, $a5, $a7) + ADDSUB $t4, $t0, $t6 C cycle 3, 9, ... + CMPCY( $t3, $t4, $t0, $t6) C cycle 4, 10, ... + st.d $t4, rp, 0 + add.d $t6, $t2, $t3 C cycle 5, 11, ... +L(mid): ld.d $a7, vp, 8 + ld.d $a5, up, -8 + addi.d vp, vp, 16 C bookkeeping + addi.d rp, rp, 16 C bookkeeping + and $a7, $a7, mask + ADDSUB $t1, $a5, $a7 + CMPCY( $t2, $t1, $a5, $a7) + ADDSUB $t4, $t1, $t6 C cycle 0, 6, ... + CMPCY( $t3, $t4, $t1, $t6) C cycle 1, 7, ... + st.d $t4, rp, -8 + add.d $t6, $t2, $t3 C cycle 2, 8, ... + bnez n, L(top) + +L(end): move $a0, $t6 + jr $r1 +EPILOGUE() +ASM_END() |