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/s390_32/lshift.asm | 144 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 144 insertions(+) create mode 100644 gmp-6.3.0/mpn/s390_32/lshift.asm (limited to 'gmp-6.3.0/mpn/s390_32/lshift.asm') diff --git a/gmp-6.3.0/mpn/s390_32/lshift.asm b/gmp-6.3.0/mpn/s390_32/lshift.asm new file mode 100644 index 0000000..da7d76e --- /dev/null +++ b/gmp-6.3.0/mpn/s390_32/lshift.asm @@ -0,0 +1,144 @@ +dnl S/390-32 mpn_lshift. + +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 6 +C z990 3 +C z9 ? +C z10 ? +C z196 ? + +C TODO +C * + +C INPUT PARAMETERS +define(`rp', `%r2') +define(`up', `%r3') +define(`n', `%r4') +define(`cnt', `%r5') + +ASM_START() +PROLOGUE(mpn_lshift) + lr %r1, n + sll %r1, 2 + stm %r6, %r12, 24(%r15) + la up, 0(%r1,up) C put up near end of U + la rp, 0(%r1,rp) C put rp near end of R + ahi up, -20 + ahi rp, -16 + lhi %r8, 32 + sr %r8, cnt + l %r12, 16(up) + srl %r12, 0(%r8) C return value + lhi %r7, 3 + nr %r7, n + srl n, 2 + je L(b0) + chi %r7, 2 + jl L(b1) + je L(b2) + +L(b3): l %r10, 16(up) + l %r11, 12(up) + l %r9, 8(up) + ahi up, -8 + lr %r8, %r11 + sldl %r10, 0(cnt) + sldl %r8, 0(cnt) + st %r10, 12(rp) + st %r8, 8(rp) + ahi rp, -8 + ltr n, n + je L(end) + j L(top) + +L(b2): l %r10, 16(up) + l %r11, 12(up) + ahi up, -4 + sldl %r10, 0(cnt) + st %r10, 12(rp) + ahi rp, -4 + ltr n, n + je L(end) + j L(top) + +L(b1): ltr n, n + je L(end) + j L(top) + +L(b0): l %r10,16(up) + l %r8, 12(up) + l %r6, 8(up) + l %r0, 4(up) + ahi up, -12 + lr %r11, %r8 + lr %r9, %r6 + lr %r7, %r0 + sldl %r10,0(cnt) + sldl %r8, 0(cnt) + sldl %r6, 0(cnt) + st %r10, 12(rp) + st %r8, 8(rp) + st %r6, 4(rp) + ahi rp, -12 + ahi n, -1 + je L(end) + + ALIGN(8) +L(top): l %r10, 16(up) + l %r8, 12(up) + l %r6, 8(up) + l %r0, 4(up) + l %r1, 0(up) + lr %r11, %r8 + lr %r9, %r6 + lr %r7, %r0 + ahi up, -16 + sldl %r10, 0(cnt) + sldl %r8, 0(cnt) + sldl %r6, 0(cnt) + sldl %r0, 0(cnt) + st %r10, 12(rp) + st %r8, 8(rp) + st %r6, 4(rp) + st %r0, 0(rp) + ahi rp, -16 + brct n, L(top) + +L(end): l %r10, 16(up) + sll %r10, 0(cnt) + st %r10, 12(rp) + + lr %r2, %r12 + lm %r6, %r12, 24(%r15) + br %r14 +EPILOGUE() -- cgit v1.2.3