diff options
Diffstat (limited to 'gmp/mpn/sparc64/ultrasparct1/sublshC_n.asm')
| -rw-r--r-- | gmp/mpn/sparc64/ultrasparct1/sublshC_n.asm | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/gmp/mpn/sparc64/ultrasparct1/sublshC_n.asm b/gmp/mpn/sparc64/ultrasparct1/sublshC_n.asm new file mode 100644 index 0000000000..01eafef1bc --- /dev/null +++ b/gmp/mpn/sparc64/ultrasparct1/sublshC_n.asm @@ -0,0 +1,69 @@ +dnl SPARC v9 mpn_sublshC_n for T1/T2. + +dnl Copyright 2010 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/. + +C cycles/limb +C UltraSPARC T1: 21 +C UltraSPARC T2: ? + +C INPUT PARAMETERS +define(`rp', `%o0') +define(`up', `%o1') +define(`vp', `%o2') +define(`n', `%o3') +define(`cy', `%o4') + +ASM_START() + REGISTER(%g2,#scratch) + REGISTER(%g3,#scratch) +PROLOGUE(func) + mov 0, cy + mov 0, %g5 + cmp %g0, cy +L(top): ldx [up+0], %o4 + add up, 8, up + ldx [vp+0], %o5 + add vp, 8, vp + add rp, 8, rp + + sllx %o5, LSH, %g4 + add n, -1, n + or %g5, %g4, %g4 + srlx %o5, RSH, %g5 + + srlx %o4, 32, %g1 + srlx %g4, 32, %g2 + subccc %o4, %g4, %g3 + subccc %g1, %g2, %g0 + brgz n, L(top) + stx %g3, [rp-8] + + retl + addc %g5, %g0, %o0 +EPILOGUE() |