# _lshrsi3.S for Lattice Mico32 # Contributed by Jon Beniston and Richard Henderson. # # Copyright (C) 2009 Free Software Foundation, Inc. # # This file is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by the # Free Software Foundation; either version 3, or (at your option) any # later version. # # This file 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 # General Public License for more details. # # Under Section 7 of GPL version 3, you are granted additional # permissions described in the GCC Runtime Library Exception, version # 3.1, as published by the Free Software Foundation. # # You should have received a copy of the GNU General Public License and # a copy of the GCC Runtime Library Exception along with this program; # see the files COPYING3 and COPYING.RUNTIME respectively. If not, see # . # /* Logical right shift. */ .global __lshrsi3 .type __lshrsi3,@function __lshrsi3: /* Only use 5 LSBs, as that's all the h/w shifter uses. */ andi r2, r2, 0x1f /* Get address of offset into unrolled shift loop to jump to. */ #ifdef __PIC__ lw r3, (gp+got(__lshrsi3_0)) #else mvhi r3, hi(__lshrsi3_0) ori r3, r3, lo(__lshrsi3_0) #endif add r2, r2, r2 add r2, r2, r2 sub r3, r3, r2 b r3 __lshrsi3_31: srui r1, r1, 1 __lshrsi3_30: srui r1, r1, 1 __lshrsi3_29: srui r1, r1, 1 __lshrsi3_28: srui r1, r1, 1 __lshrsi3_27: srui r1, r1, 1 __lshrsi3_26: srui r1, r1, 1 __lshrsi3_25: srui r1, r1, 1 __lshrsi3_24: srui r1, r1, 1 __lshrsi3_23: srui r1, r1, 1 __lshrsi3_22: srui r1, r1, 1 __lshrsi3_21: srui r1, r1, 1 __lshrsi3_20: srui r1, r1, 1 __lshrsi3_19: srui r1, r1, 1 __lshrsi3_18: srui r1, r1, 1 __lshrsi3_17: srui r1, r1, 1 __lshrsi3_16: srui r1, r1, 1 __lshrsi3_15: srui r1, r1, 1 __lshrsi3_14: srui r1, r1, 1 __lshrsi3_13: srui r1, r1, 1 __lshrsi3_12: srui r1, r1, 1 __lshrsi3_11: srui r1, r1, 1 __lshrsi3_10: srui r1, r1, 1 __lshrsi3_9: srui r1, r1, 1 __lshrsi3_8: srui r1, r1, 1 __lshrsi3_7: srui r1, r1, 1 __lshrsi3_6: srui r1, r1, 1 __lshrsi3_5: srui r1, r1, 1 __lshrsi3_4: srui r1, r1, 1 __lshrsi3_3: srui r1, r1, 1 __lshrsi3_2: srui r1, r1, 1 __lshrsi3_1: srui r1, r1, 1 __lshrsi3_0: ret