mirror of
https://github.com/handsomezhuzhu/2025-yatcpu.git
synced 2026-02-20 20:10:14 +00:00
48 lines
1.1 KiB
ArmAsm
48 lines
1.1 KiB
ArmAsm
# Copyright 2022 Canbin Huang
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
|
|
.globl _start
|
|
_start:
|
|
csrr a0, cycle
|
|
|
|
addi t0, zero, 1
|
|
sub t1, zero, t0
|
|
and t2, t0, t1
|
|
sw t2, 4(zero)
|
|
j skip1
|
|
or t2, t0, t1
|
|
xor t2, t0, t1
|
|
|
|
skip1:
|
|
addi t1, t2, 1
|
|
add t2, t1, t2
|
|
and t2, t1, t2
|
|
lw t2, 2(t2)
|
|
or t3, t1, t2
|
|
blt t2, t3, skip2
|
|
or t3, t0, t0
|
|
xor t3, t0, t1
|
|
|
|
skip2:
|
|
addi t4, zero, 3
|
|
bne t3, t4, skip1
|
|
sw t3, 8(zero)
|
|
auipc t4, 0
|
|
jalr t4, 8(t4)
|
|
jalr t4, 4(t4)
|
|
csrr a1, cycle
|
|
sub ra, a1, a0
|
|
|
|
loop:
|
|
j loop |