mirror of
https://github.com/autc04/Retro68.git
synced 2024-12-11 03:52:59 +00:00
110 lines
2.9 KiB
ArmAsm
110 lines
2.9 KiB
ArmAsm
# _ashrsi3.S for Lattice Mico32
|
|
# Contributed by Jon Beniston <jon@beniston.com> and Richard Henderson.
|
|
#
|
|
# Copyright (C) 2009-2017 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
|
|
# <http://www.gnu.org/licenses/>.
|
|
#
|
|
|
|
/* 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
|
|
|