# VAX mpn_rshift -- right shift. # Copyright 1999, 2000, 2001 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 3 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. If not, see http://www.gnu.org/licenses/. # 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_rshift ___gmpn_rshift: .word 0x1c0 movl 4(ap),r7 movl 8(ap),r6 movl 12(ap),r1 movl 16(ap),r8 movl (r6)+,r2 subl3 r8,$32,r8 ashl r8,r2,r0 decl r1 jeql Lend Loop: movl (r6)+,r3 ashq r8,r2,r4 movl r5,(r7)+ movl r3,r2 sobgtr r1,Loop Lend: clrl r3 ashq r8,r2,r4 movl r5,(r7) ret