[project @ 1998-06-05 14:43:47 by simonm]

[ghc-hetmet.git] / ghc / rts / gmp / mpn / hppa / lshift.s

diff --git a/ghc/rts/gmp/mpn/hppa/lshift.s b/ghc/rts/gmp/mpn/hppa/lshift.s
new file mode 100644 (file)
index 0000000..abac6ec
--- /dev/null
+++ b/ghc/rts/gmp/mpn/hppa/lshift.s
@@ -0,0 +1,66 @@
+; 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., 59 Temple Place - Suite 330, Boston,
+; MA 02111-1307, 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