# _ashrsi3.S for Lattice Mico32 # Contributed by Jon Beniston and Richard Henderson. # # Copyright (C) 2009-2024 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 # . # /* Arithmetic right shift. */ .global __ashrsi3 .type __ashrsi3,@function __ashrsi3: /* 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(__ashrsi3_0)) #else mvhi r3, hi(__ashrsi3_0) ori r3, r3, lo(__ashrsi3_0) #endif add r2, r2, r2 add r2, r2, r2 sub r3, r3, r2 b r3 __ashrsi3_31: sri r1, r1, 1 __ashrsi3_30: sri r1, r1, 1 __ashrsi3_29: sri r1, r1, 1 __ashrsi3_28: sri r1, r1, 1 __ashrsi3_27: sri r1, r1, 1 __ashrsi3_26: sri r1, r1, 1 __ashrsi3_25: sri r1, r1, 1 __ashrsi3_24: sri r1, r1, 1 __ashrsi3_23: sri r1, r1, 1 __ashrsi3_22: sri r1, r1, 1 __ashrsi3_21: sri r1, r1, 1 __ashrsi3_20: sri r1, r1, 1 __ashrsi3_19: sri r1, r1, 1 __ashrsi3_18: sri r1, r1, 1 __ashrsi3_17: sri r1, r1, 1 __ashrsi3_16: sri r1, r1, 1 __ashrsi3_15: sri r1, r1, 1 __ashrsi3_14: sri r1, r1, 1 __ashrsi3_13: sri r1, r1, 1 __ashrsi3_12: sri r1, r1, 1 __ashrsi3_11: sri r1, r1, 1 __ashrsi3_10: sri r1, r1, 1 __ashrsi3_9: sri r1, r1, 1 __ashrsi3_8: sri r1, r1, 1 __ashrsi3_7: sri r1, r1, 1 __ashrsi3_6: sri r1, r1, 1 __ashrsi3_5: sri r1, r1, 1 __ashrsi3_4: sri r1, r1, 1 __ashrsi3_3: sri r1, r1, 1 __ashrsi3_2: sri r1, r1, 1 __ashrsi3_1: sri r1, r1, 1 __ashrsi3_0: ret