diff options
Diffstat (limited to 'sysdeps/hppa/lshift.s')
| -rw-r--r-- | sysdeps/hppa/lshift.s | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/sysdeps/hppa/lshift.s b/sysdeps/hppa/lshift.s new file mode 100644 index 0000000000..0479f4a281 --- /dev/null +++ b/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 Library General Public License as published by +; the Free Software Foundation; either version 2 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 Library General Public +; License for more details. + +; You should have received a copy of the GNU Library General Public License +; along with the GNU MP Library; see the file COPYING.LIB. If not, write to +; the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + + +; INPUT PARAMETERS +; res_ptr gr26 +; s_ptr gr25 +; size gr24 +; cnt gr23 + + .code + .export __mpn_lshift +__mpn_lshift + .proc + .callinfo frame=64,no_calls + .entry + + 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 ; compute carry out limb + ldws,mb -4(0,%r25),%r29 + addib,= -1,%r24,L$0002 + vshd %r22,%r29,%r20 + +L$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 + +L$0002 stws,mb %r20,-4(0,%r26) + vshd %r29,%r0,%r20 + bv 0(%r2) + stw %r20,-4(0,%r26) +L$0003 stws,mb %r20,-4(0,%r26) +L$0004 vshd %r22,%r0,%r20 + bv 0(%r2) + stw %r20,-4(0,%r26) + + .exit + .procend |