diff options
Diffstat (limited to 'gmp/mpn/pa32/lshift.asm')
| -rw-r--r-- | gmp/mpn/pa32/lshift.asm | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/gmp/mpn/pa32/lshift.asm b/gmp/mpn/pa32/lshift.asm new file mode 100644 index 0000000000..5ea497c1f1 --- /dev/null +++ b/gmp/mpn/pa32/lshift.asm @@ -0,0 +1,75 @@ +dnl HP-PA mpn_lshift -- Shift a number left. + +dnl Copyright 1992, 1994, 2000-2002 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 INPUT PARAMETERS +C res_ptr gr26 +C s_ptr gr25 +C size gr24 +C cnt gr23 + +ASM_START() +PROLOGUE(mpn_lshift) + sh2add %r24,%r25,%r25 + sh2add %r24,%r26,%r26 + ldws,mb -4(0,%r25),%r22 + subi 32,%r23,%r1 + mtsar %r1 + addib,= -1,%r24,L(0004) + vshd %r0,%r22,%r28 C compute carry out limb + ldws,mb -4(0,%r25),%r29 + addib,= -1,%r24,L(0002) + vshd %r22,%r29,%r20 + +LDEF(loop) + ldws,mb -4(0,%r25),%r22 + stws,mb %r20,-4(0,%r26) + addib,= -1,%r24,L(0003) + vshd %r29,%r22,%r20 + ldws,mb -4(0,%r25),%r29 + stws,mb %r20,-4(0,%r26) + addib,<> -1,%r24,L(loop) + vshd %r22,%r29,%r20 + +LDEF(0002) + stws,mb %r20,-4(0,%r26) + vshd %r29,%r0,%r20 + bv 0(%r2) + stw %r20,-4(0,%r26) + +LDEF(0003) + stws,mb %r20,-4(0,%r26) + +LDEF(0004) + vshd %r22,%r0,%r20 + bv 0(%r2) + stw %r20,-4(0,%r26) +EPILOGUE() |