Annotation of OpenXM_contrib/gmp/mpn/vax/rshift.s, Revision 1.1
1.1 ! maekawa 1: # VAX __gmpn_rshift -- right shift.
! 2:
! 3: # Copyright (C) 1999, 2000 Free Software Foundation, Inc.
! 4:
! 5: # This file is part of the GNU MP Library.
! 6:
! 7: # The GNU MP Library is free software; you can redistribute it and/or modify
! 8: # it under the terms of the GNU Lesser General Public License as published by
! 9: # the Free Software Foundation; either version 2.1 of the License, or (at your
! 10: # option) any later version.
! 11:
! 12: # The GNU MP Library is distributed in the hope that it will be useful, but
! 13: # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
! 14: # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
! 15: # License for more details.
! 16:
! 17: # You should have received a copy of the GNU Lesser General Public License
! 18: # along with the GNU MP Library; see the file COPYING.LIB. If not, write to
! 19: # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
! 20: # MA 02111-1307, USA.
! 21:
! 22:
! 23: # INPUT PARAMETERS
! 24: # rptr (sp + 4)
! 25: # sptr (sp + 8)
! 26: # size (sp + 12)
! 27: # cnt (sp + 16)
! 28: # r0=retval r1=size r2,r3=itmp r4,r5=otmp call-used registers
! 29: # r6=sptr r7=rptr r8=cnt r9 r10 r11 call-saved registers
! 30:
! 31: .text
! 32: .align 1
! 33: .globl ___gmpn_rshift
! 34: ___gmpn_rshift:
! 35: .word 0x1c0
! 36: movl 4(ap),r7
! 37: movl 8(ap),r6
! 38: movl 12(ap),r1
! 39: movl 16(ap),r8
! 40:
! 41: movl (r6)+,r2
! 42: subl3 r8,$32,r8
! 43: ashl r8,r2,r0
! 44: decl r1
! 45: jeql Lend
! 46:
! 47: Loop: movl (r6)+,r3
! 48: ashq r8,r2,r4
! 49: movl r5,(r7)+
! 50: movl r3,r2
! 51: jsobgtr r1,Loop
! 52:
! 53: Lend: clrl r3
! 54: ashq r8,r2,r4
! 55: movl r5,(r7)
! 56: ret
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