Annotation of OpenXM/src/kan96xx/gmp-2.0.2-ssh-2/mpn/i960/mul_1.s, Revision 1.1
1.1 ! takayama 1: # I960 __mpn_mul_1 -- Multiply a limb vector with a limb and store
! 2: # the result in a second limb vector.
! 3:
! 4: # Copyright (C) 1995 Free Software Foundation, Inc.
! 5:
! 6: # This file is part of the GNU MP Library.
! 7:
! 8: # The GNU MP Library is free software; you can redistribute it and/or modify
! 9: # it under the terms of the GNU Library General Public License as published by
! 10: # the Free Software Foundation; either version 2 of the License, or (at your
! 11: # option) any later version.
! 12:
! 13: # The GNU MP Library is distributed in the hope that it will be useful, but
! 14: # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
! 15: # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
! 16: # License for more details.
! 17:
! 18: # You should have received a copy of the GNU Library General Public License
! 19: # along with the GNU MP Library; see the file COPYING.LIB. If not, write to
! 20: # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
! 21: # MA 02111-1307, USA.
! 22:
! 23: .text
! 24: .align 4
! 25: .globl ___mpn_mul_1
! 26: ___mpn_mul_1:
! 27: subo g2,0,g2
! 28: shlo 2,g2,g4
! 29: subo g4,g1,g1
! 30: subo g4,g0,g13
! 31: mov 0,g0
! 32:
! 33: cmpo 1,0 # clear C bit on AC.cc
! 34:
! 35: Loop: ld (g1)[g2*4],g5
! 36: emul g3,g5,g6
! 37:
! 38: addc g0,g6,g6 # relies on that C bit is clear
! 39: st g6,(g13)[g2*4]
! 40: addc 0,g7,g0
! 41:
! 42: addo g2,1,g2
! 43: cmpobne 0,g2,Loop # when branch is taken, clears C bit
! 44:
! 45: ret
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