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author | Duncan Wilkie <antigravityd@gmail.com> | 2023-11-18 06:11:09 -0600 |
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committer | Duncan Wilkie <antigravityd@gmail.com> | 2023-11-18 06:11:09 -0600 |
commit | 11da511c784eca003deb90c23570f0873954e0de (patch) | |
tree | e14fdd3d5d6345956d67e79ae771d0633d28362b /gmp-6.3.0/mpn/s390_64/mul_1.asm |
Initial commit.
Diffstat (limited to 'gmp-6.3.0/mpn/s390_64/mul_1.asm')
-rw-r--r-- | gmp-6.3.0/mpn/s390_64/mul_1.asm | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/gmp-6.3.0/mpn/s390_64/mul_1.asm b/gmp-6.3.0/mpn/s390_64/mul_1.asm new file mode 100644 index 0000000..a8f6da9 --- /dev/null +++ b/gmp-6.3.0/mpn/s390_64/mul_1.asm @@ -0,0 +1,66 @@ +dnl S/390-64 mpn_mul_1 + +dnl Copyright 2011 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 cycles/limb +C z900 29 +C z990 22 +C z9 ? +C z10 20 +C z196 ? + +C INPUT PARAMETERS +define(`rp', `%r2') +define(`up', `%r3') +define(`n', `%r4') +define(`v0', `%r5') + +ASM_START() +PROLOGUE(mpn_mul_1) + stmg %r11, %r12, 88(%r15) + lghi %r12, 0 C zero index register + aghi %r12, 0 C clear carry flag + lghi %r11, 0 C clear carry limb + +L(top): lg %r1, 0(%r12,up) + mlgr %r0, v0 + alcgr %r1, %r11 + lgr %r11, %r0 C copy high part to carry limb + stg %r1, 0(%r12,rp) + la %r12, 8(%r12) + brctg n, L(top) + + lghi %r2, 0 + alcgr %r2, %r11 + + lmg %r11, %r12, 88(%r15) + br %r14 +EPILOGUE() |