From 11da511c784eca003deb90c23570f0873954e0de Mon Sep 17 00:00:00 2001 From: Duncan Wilkie Date: Sat, 18 Nov 2023 06:11:09 -0600 Subject: Initial commit. --- gmp-6.3.0/mpn/sparc64/rshift.asm | 142 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 142 insertions(+) create mode 100644 gmp-6.3.0/mpn/sparc64/rshift.asm (limited to 'gmp-6.3.0/mpn/sparc64/rshift.asm') diff --git a/gmp-6.3.0/mpn/sparc64/rshift.asm b/gmp-6.3.0/mpn/sparc64/rshift.asm new file mode 100644 index 0000000..3f8e11f --- /dev/null +++ b/gmp-6.3.0/mpn/sparc64/rshift.asm @@ -0,0 +1,142 @@ +dnl SPARC v9 mpn_rshift + +dnl Contributed to the GNU project by David Miller. + +dnl Copyright 2013 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 UltraSPARC 1&2: 2 +C UltraSPARC 3: 2.5 +C UltraSPARC T1: 17.5 +C UltraSPARC T3: 8 +C UltraSPARC T4: 3 + +C INPUT PARAMETERS +define(`rp', `%i0') +define(`up', `%i1') +define(`n', `%i2') +define(`cnt', `%i3') + +define(`tcnt', `%i4') +define(`retval', `%i5') +define(`u0', `%l0') +define(`u1', `%l1') +define(`r0', `%l6') +define(`r1', `%l7') +define(`u0_off', `%o0') +define(`u1_off', `%o1') +define(`r0_off', `%o2') +define(`r1_off', `%o3') + +ASM_START() + REGISTER(%g2,#scratch) + REGISTER(%g3,#scratch) +PROLOGUE(mpn_rshift) + save %sp, -176, %sp + + sllx n, 3, n + sub %g0, cnt, tcnt + + add up, n, up + add rp, n, rp + + neg n, n + sub up, (2 * 8), u0_off + sub rp, (5 * 8), r0_off + + ldx [n + up], u1 C WAS: up + 0 + sub u0_off, (1 * 8), u1_off + sub r0_off, (1 * 8), r1_off + + subcc n, -(3 * 8), n + sllx u1, tcnt, retval + + bg,pn %xcc, L(end12) + srlx u1, cnt, %l3 + + ldx [n + u0_off], u0 C WAS: up + 0 + subcc n, -(2 * 8), n + + ldx [n + u1_off], u1 C WAS: up + 8 + + bg,pn %xcc, L(end34) + sllx u0, tcnt, %l4 + + b,a L(top) + ALIGN(16) +L(top): + srlx u0, cnt, %l2 + or %l3, %l4, r0 + + ldx [n + u0_off], u0 C WAS: up + 0 + sllx u1, tcnt, %l5 + + stx r0, [n + r0_off] C WAS: rp + 0 + subcc n, -(2 * 8), n + + srlx u1, cnt, %l3 + or %l2, %l5, r1 + + ldx [n + u1_off], u1 C WAS: up + 8 + sllx u0, tcnt, %l4 + + ble,pt %xcc, L(top) + stx r1, [n + r1_off] C WAS: rp + 8 + +L(end34): + srlx u0, cnt, %l2 + or %l3, %l4, r0 + + sllx u1, tcnt, %l5 + stx r0, [n + r0_off] C WAS: rp + 0 + + or %l2, %l5, r1 + sub n, -(2 * 8), %o5 + + srlx u1, cnt, %l3 + stx r1, [%o5 + r1_off] C WAS: rp + 8 + +L(end12): + andcc n, 8, %g0 + bz,pn %xcc, L(done) + nop + + ldx [n + u0_off], u1 + sllx u1, tcnt, %l4 + or %l3, %l4, r0 + stx r0, [r0_off + 24] + srlx u1, cnt, %l3 +L(done): + stx %l3, [r0_off + 32] + + ret + restore retval, 0, %o0 +EPILOGUE() -- cgit v1.2.3