1dnl SPARC v9 mpn_lshiftc 2 3dnl Contributed to the GNU project by David Miller. 4 5dnl Copyright 2013 Free Software Foundation, Inc. 6 7dnl This file is part of the GNU MP Library. 8dnl 9dnl The GNU MP Library is free software; you can redistribute it and/or modify 10dnl it under the terms of either: 11dnl 12dnl * the GNU Lesser General Public License as published by the Free 13dnl Software Foundation; either version 3 of the License, or (at your 14dnl option) any later version. 15dnl 16dnl or 17dnl 18dnl * the GNU General Public License as published by the Free Software 19dnl Foundation; either version 2 of the License, or (at your option) any 20dnl later version. 21dnl 22dnl or both in parallel, as here. 23dnl 24dnl The GNU MP Library is distributed in the hope that it will be useful, but 25dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 26dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 27dnl for more details. 28dnl 29dnl You should have received copies of the GNU General Public License and the 30dnl GNU Lesser General Public License along with the GNU MP Library. If not, 31dnl see https://www.gnu.org/licenses/. 32 33include(`../config.m4') 34 35C cycles/limb 36C UltraSPARC 1&2: 3 37C UltraSPARC 3: 3 38C UltraSPARC T1: 17 39C UltraSPARC T3: 10 40C UltraSPARC T4: 3.5 41 42C INPUT PARAMETERS 43define(`rp', `%i0') 44define(`up', `%i1') 45define(`n', `%i2') 46define(`cnt', `%i3') 47 48define(`tcnt', `%i4') 49define(`retval', `%i5') 50define(`u0', `%l0') 51define(`u1', `%l1') 52define(`r0', `%l6') 53define(`r1', `%l7') 54define(`u0_off', `%o0') 55define(`u1_off', `%o1') 56define(`r0_off', `%o2') 57define(`r1_off', `%o3') 58 59ASM_START() 60 REGISTER(%g2,#scratch) 61 REGISTER(%g3,#scratch) 62PROLOGUE(mpn_lshiftc) 63 save %sp, -176, %sp 64 65 sllx n, 3, n 66 sub %g0, cnt, tcnt 67 68 sub up, 8, u1_off 69 add rp, (5 * 8), r1_off 70 71 ldx [n + u1_off], u1 C WAS: up - 8 72 add u1_off, (3 * 8), u1_off 73 74 sub r1_off, 8, r0_off 75 sub u1_off, 8, u0_off 76 77 subcc n, (3 * 8), n 78 srlx u1, tcnt, retval 79 80 bl,pn %xcc, L(end12) 81 sllx u1, cnt, %l3 82 83 ldx [n + u0_off], u0 C WAS: up - 16 84 subcc n, (2 * 8), n 85 86 ldx [n + u1_off], u1 C WAS: up - 24 87 88 bl,pn %xcc, L(end34) 89 srlx u0, tcnt, %l4 90 91 b,a L(top) 92 ALIGN(16) 93L(top): 94 not %l3, %l3 95 sllx u0, cnt, %l2 96 97 andn %l3, %l4, r0 98 ldx [n + u0_off], u0 C WAS: up - 16 99 100 srlx u1, tcnt, %l5 101 stx r0, [n + r0_off] C WAS: rp - 8 102 103 subcc n, (2 * 8), n 104 not %l2, %l2 105 106 sllx u1, cnt, %l3 107 andn %l2, %l5, r1 108 109 ldx [n + u1_off], u1 C WAS: up - 24 110 srlx u0, tcnt, %l4 111 112 bge,pt %xcc, L(top) 113 stx r1, [n + r1_off] C WAS: rp - 16 114 115L(end34): 116 not %l3, %l3 117 sllx u0, cnt, %l2 118 119 andn %l3, %l4, r0 120 srlx u1, tcnt, %l5 121 122 stx r0, [n + r0_off] C WAS: rp - 8 123 not %l2, %l2 124 125 andn %l2, %l5, r1 126 sub n, (2 * 8), %o5 127 128 sllx u1, cnt, %l3 129 stx r1, [%o5 + r1_off] C WAS: rp - 16 130 131L(end12): 132 andcc n, 8, %g0 133 bz %xcc, L(done)+4 134 not %l3, %l3 135 136 ldx [n + u0_off], u1 137 srlx u1, tcnt, %l4 138 andn %l3, %l4, r0 139 stx r0, [r0_off - 24] 140 sllx u1, cnt, %l3 141L(done): 142 not %l3, %l3 143 stx %l3, [r0_off - 32] 144 145 ret 146 restore retval, 0, %o0 147EPILOGUE() 148