diff options
Diffstat (limited to 'rts/gmp/mpn/vax/lshift.s')
| -rw-r--r-- | rts/gmp/mpn/vax/lshift.s | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/rts/gmp/mpn/vax/lshift.s b/rts/gmp/mpn/vax/lshift.s new file mode 100644 index 0000000000..fd311a9782 --- /dev/null +++ b/rts/gmp/mpn/vax/lshift.s @@ -0,0 +1,58 @@ +# VAX __gmpn_lshift -- left shift. + +# Copyright (C) 1999, 2000 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; 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 +# rptr (sp + 4) +# sptr (sp + 8) +# size (sp + 12) +# cnt (sp + 16) +# r0=retval r1=size r2,r3=itmp r4,r5=otmp call-used registers +# r6=sptr r7=rptr r8=cnt r9 r10 r11 call-saved registers + +.text + .align 1 +.globl ___gmpn_lshift +___gmpn_lshift: + .word 0x1c0 + movl 4(ap),r7 + movl 8(ap),r6 + movl 12(ap),r1 + movl 16(ap),r8 + + moval (r6)[r1],r6 + moval (r7)[r1],r7 + clrl r3 + movl -(r6),r2 + ashq r8,r2,r4 + movl r5,r0 + movl r2,r3 + decl r1 + jeql Lend + +Loop: movl -(r6),r2 + ashq r8,r2,r4 + movl r5,-(r7) + movl r2,r3 + jsobgtr r1,Loop + +Lend: movl r4,-4(r7) + ret |