diff options
Diffstat (limited to 'gmp-6.3.0/mpn/s390_32/copyd.asm')
| -rw-r--r-- | gmp-6.3.0/mpn/s390_32/copyd.asm | 145 |
1 files changed, 145 insertions, 0 deletions
diff --git a/gmp-6.3.0/mpn/s390_32/copyd.asm b/gmp-6.3.0/mpn/s390_32/copyd.asm new file mode 100644 index 0000000..ff252bc --- /dev/null +++ b/gmp-6.3.0/mpn/s390_32/copyd.asm @@ -0,0 +1,145 @@ +dnl S/390-32 mpn_copyd + +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 cycles/limb +C z900 1.65 +C z990 1.125 +C z9 ? +C z10 ? +C z196 ? + +C FIXME: +C * Avoid saving/restoring callee-saves registers for n < 3. This could be +C done by setting rp=r1, up=r2, i=r0 and r3,r4,r5 for clock regs. +C We could then use r3...r10 in main loop. + +C INPUT PARAMETERS +define(`rp_param', `%r2') +define(`up_param', `%r3') +define(`n', `%r4') + +define(`rp', `%r8') +define(`up', `%r9') + +ASM_START() +PROLOGUE(mpn_copyd) + stm %r6, %r11, 24(%r15) + + lr %r1, n + sll %r1, 2 + la %r10, 8(n) + ahi %r1, -32 + srl %r10, 3 + lhi %r11, -32 + + la rp, 0(%r1,rp_param) C FIXME use lay on z990 and later + la up, 0(%r1,up_param) C FIXME use lay on z990 and later + + lhi %r7, 7 + nr %r7, n C n mod 8 + chi %r7, 2 + jh L(b34567) + chi %r7, 1 + je L(b1) + jh L(b2) + +L(b0): brct %r10, L(top) + j L(end) + +L(b1): l %r0, 28(up) + ahi up, -4 + st %r0, 28(rp) + ahi rp, -4 + brct %r10, L(top) + j L(end) + +L(b2): lm %r0, %r1, 24(up) + ahi up, -8 + stm %r0, %r1, 24(rp) + ahi rp, -8 + brct %r10, L(top) + j L(end) + +L(b34567): + chi %r7, 4 + jl L(b3) + je L(b4) + chi %r7, 6 + je L(b6) + jh L(b7) + +L(b5): lm %r0, %r4, 12(up) + ahi up, -20 + stm %r0, %r4, 12(rp) + ahi rp, -20 + brct %r10, L(top) + j L(end) + +L(b3): lm %r0, %r2, 20(up) + ahi up, -12 + stm %r0, %r2, 20(rp) + ahi rp, -12 + brct %r10, L(top) + j L(end) + +L(b4): lm %r0, %r3, 16(up) + ahi up, -16 + stm %r0, %r3, 16(rp) + ahi rp, -16 + brct %r10, L(top) + j L(end) + +L(b6): lm %r0, %r5, 8(up) + ahi up, -24 + stm %r0, %r5, 8(rp) + ahi rp, -24 + brct %r10, L(top) + j L(end) + +L(b7): lm %r0, %r6, 4(up) + ahi up, -28 + stm %r0, %r6, 4(rp) + ahi rp, -28 + brct %r10, L(top) + j L(end) + +L(top): lm %r0, %r7, 0(up) + la up, 0(%r11,up) + stm %r0, %r7, 0(rp) + la rp, 0(%r11,rp) + brct %r10, L(top) + +L(end): lm %r6, %r11, 24(%r15) + br %r14 +EPILOGUE() |