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Diffstat (limited to 'ports/sysdeps/hppa/lshift.S')
| -rw-r--r-- | ports/sysdeps/hppa/lshift.S | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/ports/sysdeps/hppa/lshift.S b/ports/sysdeps/hppa/lshift.S new file mode 100644 index 0000000000..ce18a981f3 --- /dev/null +++ b/ports/sysdeps/hppa/lshift.S @@ -0,0 +1,65 @@ +;! HP-PA __mpn_lshift -- + +;! Copyright (C) 1992, 1994 Free Software Foundation, Inc. + +;! This file is part of the GNU MP Library. + +;! The GNU MP Library is free software; you can redistribute it and/or modify +;! it under the terms of the GNU Lesser General Public License as published by +;! the Free Software Foundation; either version 2.1 of the License, or (at your +;! option) any later version. + +;! The GNU MP Library is distributed in the hope that it will be useful, but +;! WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY +;! or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public +;! License for more details. + +;! You should have received a copy of the GNU Lesser General Public License +;! along with the GNU MP Library. If not, see +;! <http://www.gnu.org/licenses/>. + + +;! INPUT PARAMETERS +;! res_ptr gr26 +;! s_ptr gr25 +;! size gr24 +;! cnt gr23 + + .text + .export __mpn_lshift +__mpn_lshift: + .proc + .callinfo frame=64,no_calls + .entry + + sh2add %r24,%r25,%r25 + sh2add %r24,%r26,%r26 + ldws,mb -4(%r25),%r22 + subi 32,%r23,%r1 + mtsar %r1 + addib,= -1,%r24,L$0004 + vshd %r0,%r22,%r28 ;! compute carry out limb + ldws,mb -4(%r25),%r29 + addib,= -1,%r24,L$0002 + vshd %r22,%r29,%r20 + +L$loop: ldws,mb -4(%r25),%r22 + stws,mb %r20,-4(%r26) + addib,= -1,%r24,L$0003 + vshd %r29,%r22,%r20 + ldws,mb -4(%r25),%r29 + stws,mb %r20,-4(%r26) + addib,<> -1,%r24,L$loop + vshd %r22,%r29,%r20 + +L$0002: stws,mb %r20,-4(%r26) + vshd %r29,%r0,%r20 + bv 0(%r2) + stw %r20,-4(%r26) +L$0003: stws,mb %r20,-4(%r26) +L$0004: vshd %r22,%r0,%r20 + bv 0(%r2) + stw %r20,-4(%r26) + + .exit + .procend |